US20120251348A1 - Motor-driven compressor - Google Patents
Motor-driven compressor Download PDFInfo
- Publication number
- US20120251348A1 US20120251348A1 US13/431,522 US201213431522A US2012251348A1 US 20120251348 A1 US20120251348 A1 US 20120251348A1 US 201213431522 A US201213431522 A US 201213431522A US 2012251348 A1 US2012251348 A1 US 2012251348A1
- Authority
- US
- United States
- Prior art keywords
- housing
- motor
- compressor
- refrigerant
- vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/007—General arrangements of parts; Frames and supporting elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
- F04C29/068—Silencing the silencing means being arranged inside the pump housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
- F04C2230/604—Mounting devices for pumps or compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/30—Casings or housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/805—Fastening means, e.g. bolts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/12—Vibration
Definitions
- the present invention relates to a motor-driven compressor.
- Japanese Laid-Open Patent Publication No. 2009-221969 discloses a motor-driven compressor of the prior art.
- the motor-driven compressor includes a housing, a compressor mechanism, and a motor mechanism.
- the housing includes a compressor housing member, a front housing member, and a rear housing member.
- the compressor mechanism is fixed in the compressor housing.
- the motor mechanism is fixed in the rear housing member.
- a suction port is formed in the front housing member.
- a discharge port is formed in the rear housing member.
- the rear housing member and the like include mounting portions that can be mounted to another member.
- the compressor mechanism draws refrigerant into the housing, compresses the refrigerant, and discharges the refrigerant from the housing.
- the motor mechanism actuates the compressor mechanism.
- Each of the suction port and discharge port are coupled to a pipe by a pipe coupling.
- An anti-vibration member is arranged between the rim of the suction port and the corresponding pipe coupling.
- An anti-vibration member is also arranged between the rim of the discharge port and the corresponding pipe coupling.
- the motor-driven compressor uses the anti-vibration members to suppress the transmission of vibration and noise from the compressor mechanism and motor mechanism to the exterior through the pipes.
- One aspect of the present invention is a motor-driven compressor including a housing.
- a compressor mechanism is arranged in the housing.
- the compressor mechanism draws refrigerant into the housing, compresses the refrigerant, and discharges the refrigerant from the housing.
- a motor mechanism is arranged in the housing.
- the motor mechanism actuates the compressor mechanism.
- the housing includes a first housing, in which the compressor mechanism and the motor mechanism are fixed, and a second housing, which includes a mounting portion that can be mounted to another member.
- An anti-vibration member is arranged between the first housing and the second housing.
- FIG. 1 is a block diagram of an air conditioner including a motor-driven compressor according to one embodiment of the present invention
- FIG. 2 is a cross-sectional view of the motor-driven compressor of the embodiment shown in FIG. 1 ;
- FIG. 3 is a cross-sectional view of a modified example of a motor-driven compressor according to the present invention.
- a motor-driven compressor 1 of the present embodiment is applied to an air conditioner installed in a vehicle to adjust the temperature of a passenger compartment.
- the air conditioner includes a switch valve 91 , a passenger compartment exterior heat exchanger 92 , an expansion valve 93 , and a passenger compartment interior heat exchanger 94 .
- the motor-driven compressor 1 includes a housing 7 and a compressor mechanism 3 and motor mechanism 5 , which are arranged in the housing 7 .
- the details of the housing 7 will be described later.
- the compressor mechanism 3 includes a fixed scroll 3 A, which is fixed to an inner wall surface 10 B of a first housing 10 , and a movable scroll 3 B, which is arranged to face the fixed scroll 3 A.
- the fixed scroll 3 A and movable scroll 3 B are engaged with each other and form a compression chamber 3 C.
- a drive shaft 5 A is accommodated in the first housing 10 .
- the drive shaft 5 A includes a distal portion (right side as viewed in FIG. 2 ), which is supported in a rotatable manner by a bearing 5 B, and a proximal portion (left side as viewed in FIG. 2 ), which is supported in a rotatable manner by a bearing 5 C.
- a plurality of two in FIG.
- bearing holders 10 G are arranged in the inner wall surface 10 B of the first housing 10 to hold the bearing 5 B.
- the bearing holders 10 G project inward in the radial direction from the inner wall surface 10 B and are rib-shaped.
- the two bearing holders 10 G of the present embodiment are arranged at the upper side and lower side of the plane of FIG. 2 and separated from each other.
- the motor mechanism 5 is located closer to a second housing 21 than the compressor mechanism 3 .
- a stator 5 D is fixed to the inner wall surface 10 B of the first housing 10 .
- a drive circuit (not shown) supplies the stator 5 D with three-phase current.
- a rotor 5 E is arranged in the stator 5 D. The rotor 5 E is fixed to the drive shaft 5 A. The rotor 5 E is rotated and driven by the current supplied to the stator 5 D.
- the drive shaft 5 A, stator 5 D, and rotor 5 E form the motor mechanism 5 .
- the compressor mechanism 3 draws refrigerant into the housing 7 through a suction pipe 95 and compresses the refrigerant. Then, the compressor mechanism 3 discharges the compressed refrigerant from the housing 7 through a discharge pipe 96 .
- the switch valve 91 is connected to the motor-driven compressor 1 by the suction pipe 95 and the discharge pipe 96 . Further, the switch valve 91 is connected to the passenger compartment exterior heat exchanger 92 by a pipe 97 and the passenger compartment interior heat exchanger 94 by a pipe 99 .
- the expansion valve 93 is connected to the passenger compartment exterior heat exchanger 92 by a pipe 98 A and the passenger compartment interior heat exchanger 94 by a pipe 98 B.
- the switch valve 91 which is controlled by a control unit installed in the vehicle, can switch communication states of pipes.
- the switch valve 91 communicates the discharge pipe 96 and pipe 97 and communicates the suction pipe 95 and pipe 99 , the refrigerant discharged from the motor-driven compressor 1 through the discharge pipe 96 flows in direction D 1 as shown in FIG. 1 .
- the switch valve 91 communicates the discharge pipe 96 and pipe 99 and communicates the suction pipe 95 and pipe 97 , the refrigerant discharged from the motor-driven compressor 1 through the discharge pipe 96 flows in direction D 2 as shown in FIG. 1 .
- the passenger compartment exterior heat exchanger 92 dissipates heat to or absorbs heat from the ambient air.
- the passenger compartment interior heat exchanger 94 dissipates heat to or absorbs heat from the air in the passenger compartment.
- the passenger compartment exterior heat exchanger 92 , the passenger compartment interior heat exchanger 94 , and the expansion valve 93 are known in the art and will not be illustrated or described in detail.
- the housing 7 of the motor-driven compressor 1 will now be described. As shown in FIG. 2 , the housing 7 includes the first housing 10 and second housings 21 and 22 . A first anti-vibration member 31 is arranged between the first housing 10 and the second housing 21 . Further, a first anti-vibration member 32 is arranged between the first housing 10 and the second housing 22 .
- the first housing 10 which is cylindrical and long, includes a first end (left end as viewed in FIG. 2 ) and a second end (right end as viewed in FIG. 2 ).
- the first end is an open end 10 F
- the second end is an open end 10 E.
- the second housing 21 faces the open end 10 E
- the second housing 22 faces the open end 10 F.
- the second housings 21 and 22 are arranged to sandwich the first housing 10 from opposite sides.
- the second housing 21 is cylindrical and short and includes one open end facing the first housing 10 and an opposite closed end, which defines a lid 21 A.
- the second housing 22 is cylindrical and short and includes one open end facing the first housing 10 and an opposite closed end, which defines a lid 22 A.
- the first housing 10 and the second housings 21 and 22 be formed from a metal, such as steel or aluminum.
- the first anti-vibration members 31 and 32 are formed from a material having an anti-vibration property, such as rubber, elastomer, resin, or a fiber reinforced resin.
- the first anti-vibration members 31 and 32 are formed from a fiber reinforced resin and are annular.
- the first anti-vibration member 31 is arranged between the open end 10 E of the first housing 10 and an open end 21 E of the second housing 21 .
- the first anti-vibration member 31 seals the open end 10 E and open end 21 E and joins the first housing 10 and the second housing 21 .
- the first anti-vibration member 32 is arranged between the open end 10 F of the first housing 10 and an open end 22 F of the second housing 22 .
- the first anti-vibration member 32 seals the open end 10 F and open end 22 F and joins the first housing 10 and the second housing 21 .
- a sealed cavity 10 A which accommodates the compressor mechanism 3 and the motor mechanism 5 in a sealed state, is defined in the first housing 10 and second housings 21 and 22 .
- the compressor mechanism 3 is fixed in the vicinity of the first end, or the open end 10 F, of the first housing 10
- the motor mechanism 5 is fixed in the vicinity of the second end, or the open end 10 E, of the first housing 10 .
- the compressor mechanism 3 and the motor mechanism 5 are fixed to an inner wall surface 10 B of the first housing 10 by undergoing a known fastening process, such as shrinkage fitting, pressurized fitting, or bolt fastening.
- a fastening structure involving such a fastening process fixes the compressor mechanism 3 and the motor mechanism 5 with high rigidity.
- a suction port 15 extends through the lid 21 A of the second housing 21 .
- a suction coupling 50 which serves as an outer pipe, is fixed to the suction port 15 with a second anti-vibration member 33 located in between.
- a refrigerant supply passage is formed in the sealed cavity 10 A between the suction port 15 and the compressor mechanism 3 .
- a discharge chamber 3 D is defined between the first housing 10 and the second housing 22 .
- a discharge port 16 extends through the lid 22 A of the second housing 22 .
- a discharge coupling 60 which serves as an outer pipe, is fixed to the discharge port 16 with a second anti-vibration member 33 located in between.
- the second anti-vibration members 33 are formed from a material having an anti-vibration property, such as rubber, elastomer, resin, or a fiber reinforced resin.
- the second anti-vibration members 33 are cylindrical bodies having thick walls and formed from fiber reinforced resin.
- the second housings 21 and 22 respectively include outer wall surfaces 21 C and 22 C.
- Block-shaped mounting portions 29 which can be mounted to other members, are formed on the outer wall surfaces 21 C and 22 C.
- the mounting portions 29 project outward in the radial direction of the outer housing 20 .
- An insertion hole 29 A extends through each mounting portion 29 parallel to the longitudinal direction of the first housing 10 .
- a plurality of supports 8 project from a mounting object 9 , such as a frame or engine of the vehicle.
- the mounting portions 29 are engaged with the supports 8 .
- Bolts 9 A are fastened to the mounting portions 29 and supports 8 . This fixes the motor-driven compressor 1 to the mounting object 9 .
- the fastening structure of the mounting portions 29 , supports 8 , and bolts 9 A fix the second housings 21 and 22 to the mounting object 9 with high rigidity. However, it is difficult to attenuate the vibration and noise transmitted from the second housings 21 and 22 to the mounting object 9 .
- the air conditioner to which the motor-driven compressor 1 of the present embodiment is applied, adjusts the temperature of the passenger compartment as described below.
- the switch valve 91 when cooling the passenger compartment, the switch valve 91 communicates the discharge pipe 96 and pipe 97 and communicates the suction pipe 95 and pipe 99 .
- the high-temperature and high-pressure refrigerant compressed by the compressor mechanism 3 flows in direction Dl.
- the refrigerant dissipates heat into the ambient air and liquefies at the passenger compartment exterior heat exchanger 92 .
- the pressure of the refrigerant is decreased at the expansion valve 93 .
- the refrigerant absorbs heat from the air in the passenger compartment and vaporizes at the passenger compartment interior heat exchanger 94 . This cools the air in the passenger compartment.
- the refrigerant then returns to the motor-driven compressor 1 via the pipe 99 , the switch valve 91 , and the suction pipe 95 .
- the switch valve 91 When heating the passenger compartment, the switch valve 91 communicates the discharge pipe 96 and pipe 99 and communicates the suction pipe 95 and pipe 97 .
- the high-temperature and high-pressure refrigerant compressed by the compressor mechanism 3 flows in direction D 2 .
- the refrigerant dissipates heat into the air in the passenger compartment and liquefies at the passenger compartment interior heat exchanger 94 . This heats the air in the passenger compartment.
- the pressure of the refrigerant is decreased at the expansion valve 93 .
- the refrigerant absorbs heat from the ambient air and vaporizes at the passenger compartment exterior heat exchanger 92 .
- the refrigerant then returns to the motor-driven compressor 1 via the pipe 97 , the switch valve 91 , and the suction pipe 95 .
- the compressor mechanism 3 and motor mechanism 5 are fixed to the first housing 10 with high rigidity. Further, the mounting portions 29 , the supports 8 , and the bolts 9 A fix the second housings 21 and 22 to the mounting object 9 with high rigidity. Thus, if the transmission of vibration and noise cannot be suppressed between the first housing 10 and the second housings 21 and 22 , the vibration and noise from the compressor mechanism 3 and motor mechanism 5 would be transmitted by the first housing 10 and second housings 21 and 22 to the mounting object 9 without being attenuated. This may adversely affect comfort in the environment of the passenger compartment.
- the motor-driven compressor 1 of the first embodiment includes the first anti-vibration member 31 , which is arranged between the first housing 10 and the second housing 21 , and the first anti-vibration member 32 , which is arranged between the first housing 10 and the second housing 22 . Due to the first anti-vibration members 31 and 32 , the motor-driven compressor 1 suppresses the transmission of vibration and noise, which are generated by the compressor mechanism 3 and motor mechanism 5 , from the first housing 10 to the second housings 21 and 22 . This, in turn, suppresses the transmission of vibration and noise from the mounting portions 29 of the second housings 21 and 22 to the mounting object 9 .
- the motor-driven compressor 1 of the present embodiment does not transmit vibration and noise to the exterior.
- the present embodiment also has the advantages described below.
- the first anti-vibration member 31 is arranged between the first housing 10 and the second housings 21
- the anti-vibration member 32 is arranged between the first housing 10 and the second housings 22 .
- the compressor mechanism 3 and motor mechanism 5 the structure for fastening the compressor mechanism 3 and motor mechanism 5 to the first housing 10
- the mounting portions 29 formed on the second housings 21 and 22 are not required to have anti-vibration properties and such parts may have simplified structures.
- the suction port 15 and the discharge port 16 are respectively formed in the second housings 21 and 22 and not the first housing 10 . This allows the first anti-vibration members 31 and 32 to suppress the transmission of vibration and noise, which are generated by the compressor mechanism 3 and the motor mechanism 5 , from the first housing 10 to the exterior via the suction port 15 and the discharge port 16 of the second housings 21 and 22 . As a result, the transmission of vibration and noise to the exterior is further suppressed.
- the second anti-vibration members 33 are also arranged between the suction port 15 and suction coupling 50 and between the discharge port 16 and discharge coupling 60 .
- the second anti-vibration members 33 suppress the transmission of vibration and noise, which are generated by the compressor mechanism 3 and the motor mechanism 5 , between the second housing 21 and the suction coupling 50 and between the second housing 22 and discharge coupling 60 .
- the transmission of vibration and noise to the exterior is further suppressed.
- the first housing 10 is cylindrical and includes a first end, which is the open end 10 F, and a second end, which is the open end 10 E.
- the second housing 21 faces the open end 10 E, and the second housing 22 faces the open end 10 F.
- This structure simplifies the first housing 10 and lowers the manufacturing cost. Further, the second housings 21 and 22 are easily arranged facing the open ends 10 E and 10 F of the first housing 10 . This simplifies the assembling of the motor-driven compressor 1 .
- the compressor mechanism 3 is fixed in the vicinity of the first end of the first housing 10 .
- the motor mechanism 5 is fixed in the vicinity of the second end of the first housing 10 . This structure increases the rigidity of the cylindrical first housing 10 .
- the first housing 10 does not have to be cylindrical and does not have to include two open ends.
- the first housing 10 may be formed by combining a plurality of members and include two closed ends. Further, as shown in FIG. 3 , the first housing 10 may include only one open end (left end as viewed in FIG. 3 ). In this case, the first housing 10 includes another end (right end as viewed in FIG. 3 ) closed by a disk-shaped end wall 10 H.
- An opening 10 I extends through the end wall 10 H.
- a rim 10 J extends along the periphery of the end wall 10 H. Refrigerant is drawn into the compressor mechanism 3 through the suction port 15 and the opening 10 I.
- the second housing 21 faces the rim 10 J of the first housing 10 . In this case, one end of the first housing 10 is closed by the end wall 10 H. This increases the rigidity of the first housing 10 .
- the fastening structure and shapes of the mounting portions 29 , the supports 8 , and the bolts 9 A are not limited to those of the above embodiments. Any structure can be employed as long as the mounting portions 29 can fix the motor-driven compressor 1 to the mounting object 9 .
- the second anti-vibration members 33 are arranged between the suction port 15 and suction coupling 50 and between the discharge port 16 and discharge coupling 60 .
- either one of the second anti-vibration members 33 may be eliminated.
- both second anti-vibration members 33 may be eliminated. In this case, the suction port 15 and suction coupling 50 are directly coupled to each other, and the discharge port 16 and discharge coupling 60 are directly coupled to each other.
- At least one of the suction port 15 and discharge port 16 may be arranged on the first housing 10 .
- the compressor mechanism 3 is not limited to a scroll type and may be of a reciprocating type, a vane type, or any other known compression type.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A motor-driven compressor that suppresses the transmission of vibration and noise to the exterior. The motor-driven compressor includes a housing and a compressor mechanism and motor mechanism, which are arranged in the housing. The compressor mechanism draws refrigerant into the housing, compresses the refrigerant, and discharges the refrigerant from the housing. The motor mechanism actuates the compressor mechanism. The housing includes a first housing, in which the compressor mechanism and the motor mechanism are fixed, and a second housing, which includes a mounting portion that can be mounted to another member. An anti-vibration member is arranged between the first housing and the second housing.
Description
- The present invention relates to a motor-driven compressor.
- Japanese Laid-Open Patent Publication No. 2009-221969 discloses a motor-driven compressor of the prior art. The motor-driven compressor includes a housing, a compressor mechanism, and a motor mechanism. The housing includes a compressor housing member, a front housing member, and a rear housing member. The compressor mechanism is fixed in the compressor housing. The motor mechanism is fixed in the rear housing member.
- A suction port is formed in the front housing member. A discharge port is formed in the rear housing member. The rear housing member and the like include mounting portions that can be mounted to another member. The compressor mechanism draws refrigerant into the housing, compresses the refrigerant, and discharges the refrigerant from the housing. The motor mechanism actuates the compressor mechanism.
- Each of the suction port and discharge port are coupled to a pipe by a pipe coupling. An anti-vibration member is arranged between the rim of the suction port and the corresponding pipe coupling. An anti-vibration member is also arranged between the rim of the discharge port and the corresponding pipe coupling.
- The motor-driven compressor uses the anti-vibration members to suppress the transmission of vibration and noise from the compressor mechanism and motor mechanism to the exterior through the pipes.
- In the motor-driven compressor of the prior art, however, the vibration and noise of the compressor mechanism and motor mechanism may be transmitted to the exterior through the mounting portions.
- Accordingly, it is an object of the present invention to provide a motor-driven compressor that does not transmit vibration and noise to the exterior.
- One aspect of the present invention is a motor-driven compressor including a housing. A compressor mechanism is arranged in the housing. The compressor mechanism draws refrigerant into the housing, compresses the refrigerant, and discharges the refrigerant from the housing. Further, a motor mechanism is arranged in the housing. The motor mechanism actuates the compressor mechanism. The housing includes a first housing, in which the compressor mechanism and the motor mechanism are fixed, and a second housing, which includes a mounting portion that can be mounted to another member. An anti-vibration member is arranged between the first housing and the second housing.
- Other aspects and advantages of the present invention will become apparent from the following description, taken in conjunction with the accompanying drawings, illustrating by way of example the principles of the invention.
- The invention, together with objects and advantages thereof, may best be understood by reference to the following description of the presently preferred embodiments together with the accompanying drawings in which:
-
FIG. 1 is a block diagram of an air conditioner including a motor-driven compressor according to one embodiment of the present invention; -
FIG. 2 is a cross-sectional view of the motor-driven compressor of the embodiment shown inFIG. 1 ; and -
FIG. 3 is a cross-sectional view of a modified example of a motor-driven compressor according to the present invention. - One embodiment of the present invention will now be described with reference to the drawings.
- Referring to
FIG. 1 , a motor-driven compressor 1 of the present embodiment is applied to an air conditioner installed in a vehicle to adjust the temperature of a passenger compartment. In addition to the motor-driven compressor 1, the air conditioner includes aswitch valve 91, a passenger compartmentexterior heat exchanger 92, anexpansion valve 93, and a passenger compartmentinterior heat exchanger 94. - Referring to
FIG. 2 , the motor-driven compressor 1 includes ahousing 7 and acompressor mechanism 3 andmotor mechanism 5, which are arranged in thehousing 7. The details of thehousing 7 will be described later. - The
compressor mechanism 3 includes afixed scroll 3A, which is fixed to aninner wall surface 10B of afirst housing 10, and amovable scroll 3B, which is arranged to face thefixed scroll 3A. Thefixed scroll 3A andmovable scroll 3B are engaged with each other and form acompression chamber 3C. Adrive shaft 5A is accommodated in thefirst housing 10. Thedrive shaft 5A includes a distal portion (right side as viewed inFIG. 2 ), which is supported in a rotatable manner by abearing 5B, and a proximal portion (left side as viewed inFIG. 2 ), which is supported in a rotatable manner by a bearing 5C. A plurality of (two inFIG. 2 ) bearingholders 10G are arranged in theinner wall surface 10B of thefirst housing 10 to hold thebearing 5B. Thebearing holders 10G project inward in the radial direction from theinner wall surface 10B and are rib-shaped. The twobearing holders 10G of the present embodiment are arranged at the upper side and lower side of the plane ofFIG. 2 and separated from each other. - The
motor mechanism 5 is located closer to asecond housing 21 than thecompressor mechanism 3. A stator 5D is fixed to theinner wall surface 10B of thefirst housing 10. A drive circuit (not shown) supplies the stator 5D with three-phase current. Arotor 5E is arranged in the stator 5D. Therotor 5E is fixed to thedrive shaft 5A. Therotor 5E is rotated and driven by the current supplied to the stator 5D. Thedrive shaft 5A, stator 5D, androtor 5E form themotor mechanism 5. - Referring to
FIGS. 1 and 2 , when themotor mechanism 5 rotates and actuates thecompressor mechanism 3, thecompressor mechanism 3 draws refrigerant into thehousing 7 through asuction pipe 95 and compresses the refrigerant. Then, thecompressor mechanism 3 discharges the compressed refrigerant from thehousing 7 through adischarge pipe 96. - Referring to
FIG. 1 , theswitch valve 91 is connected to the motor-driven compressor 1 by thesuction pipe 95 and thedischarge pipe 96. Further, theswitch valve 91 is connected to the passenger compartmentexterior heat exchanger 92 by apipe 97 and the passenger compartmentinterior heat exchanger 94 by apipe 99. Theexpansion valve 93 is connected to the passenger compartmentexterior heat exchanger 92 by apipe 98A and the passenger compartmentinterior heat exchanger 94 by apipe 98B. - The
switch valve 91, which is controlled by a control unit installed in the vehicle, can switch communication states of pipes. When theswitch valve 91 communicates thedischarge pipe 96 andpipe 97 and communicates thesuction pipe 95 andpipe 99, the refrigerant discharged from the motor-driven compressor 1 through thedischarge pipe 96 flows in direction D1 as shown inFIG. 1 . When theswitch valve 91 communicates thedischarge pipe 96 andpipe 99 and communicates thesuction pipe 95 andpipe 97, the refrigerant discharged from the motor-driven compressor 1 through thedischarge pipe 96 flows in direction D2 as shown inFIG. 1 . - The passenger compartment
exterior heat exchanger 92 dissipates heat to or absorbs heat from the ambient air. The passenger compartmentinterior heat exchanger 94 dissipates heat to or absorbs heat from the air in the passenger compartment. The passenger compartmentexterior heat exchanger 92, the passenger compartmentinterior heat exchanger 94, and theexpansion valve 93 are known in the art and will not be illustrated or described in detail. - The
housing 7 of the motor-driven compressor 1 will now be described. As shown inFIG. 2 , thehousing 7 includes thefirst housing 10 andsecond housings first anti-vibration member 31 is arranged between thefirst housing 10 and thesecond housing 21. Further, afirst anti-vibration member 32 is arranged between thefirst housing 10 and thesecond housing 22. - The
first housing 10, which is cylindrical and long, includes a first end (left end as viewed inFIG. 2 ) and a second end (right end as viewed inFIG. 2 ). In thefirst housing 10, the first end is anopen end 10F, and the second end is anopen end 10E. Thesecond housing 21 faces theopen end 10E, and thesecond housing 22 faces theopen end 10F. Thesecond housings first housing 10 from opposite sides. Thesecond housing 21 is cylindrical and short and includes one open end facing thefirst housing 10 and an opposite closed end, which defines alid 21A. In the same manner as thesecond housing 21, thesecond housing 22 is cylindrical and short and includes one open end facing thefirst housing 10 and an opposite closed end, which defines alid 22A. - To obtain the durability required to endure the vibration and heat, which are generated from the
compressor mechanism 3 andmotor mechanism 5, and the high-temperature and high-pressure refrigerant, it is preferable that thefirst housing 10 and thesecond housings - The first
anti-vibration members anti-vibration members - The
first anti-vibration member 31 is arranged between theopen end 10E of thefirst housing 10 and anopen end 21E of thesecond housing 21. Thefirst anti-vibration member 31 seals theopen end 10E andopen end 21E and joins thefirst housing 10 and thesecond housing 21. Thefirst anti-vibration member 32 is arranged between theopen end 10F of thefirst housing 10 and anopen end 22F of thesecond housing 22. Thefirst anti-vibration member 32 seals theopen end 10F andopen end 22F and joins thefirst housing 10 and thesecond housing 21. - A sealed
cavity 10A, which accommodates thecompressor mechanism 3 and themotor mechanism 5 in a sealed state, is defined in thefirst housing 10 andsecond housings cavity 10A, thecompressor mechanism 3 is fixed in the vicinity of the first end, or theopen end 10F, of thefirst housing 10, and themotor mechanism 5 is fixed in the vicinity of the second end, or theopen end 10E, of thefirst housing 10. - The
compressor mechanism 3 and themotor mechanism 5 are fixed to aninner wall surface 10B of thefirst housing 10 by undergoing a known fastening process, such as shrinkage fitting, pressurized fitting, or bolt fastening. A fastening structure involving such a fastening process fixes thecompressor mechanism 3 and themotor mechanism 5 with high rigidity. However, it is difficult to attenuate vibration and noise generated by thecompressor mechanism 3 andmotor mechanism 5 with such a structure. As a result, the vibration and noise of thecompressor mechanism 3 andmotor mechanism 5 are easily transmitted to thefirst housing 10. - A
suction port 15 extends through thelid 21A of thesecond housing 21. Asuction coupling 50, which serves as an outer pipe, is fixed to thesuction port 15 with asecond anti-vibration member 33 located in between. A refrigerant supply passage is formed in the sealedcavity 10A between thesuction port 15 and thecompressor mechanism 3. - A
discharge chamber 3D is defined between thefirst housing 10 and thesecond housing 22. Adischarge port 16 extends through thelid 22A of thesecond housing 22. Adischarge coupling 60, which serves as an outer pipe, is fixed to thedischarge port 16 with asecond anti-vibration member 33 located in between. - In the same manner as the first
anti-vibration members anti-vibration members 33 are formed from a material having an anti-vibration property, such as rubber, elastomer, resin, or a fiber reinforced resin. In the present embodiment, the secondanti-vibration members 33 are cylindrical bodies having thick walls and formed from fiber reinforced resin. - The
second housings outer wall surfaces 21C and 22C. Block-shaped mountingportions 29, which can be mounted to other members, are formed on theouter wall surfaces 21C and 22C. The mountingportions 29 project outward in the radial direction of the outer housing 20. Aninsertion hole 29A extends through each mountingportion 29 parallel to the longitudinal direction of thefirst housing 10. A plurality ofsupports 8 project from a mountingobject 9, such as a frame or engine of the vehicle. The mountingportions 29 are engaged with thesupports 8.Bolts 9A are fastened to the mountingportions 29 and supports 8. This fixes the motor-driven compressor 1 to the mountingobject 9. The fastening structure of the mountingportions 29, supports 8, andbolts 9A fix thesecond housings object 9 with high rigidity. However, it is difficult to attenuate the vibration and noise transmitted from thesecond housings object 9. - The air conditioner, to which the motor-driven compressor 1 of the present embodiment is applied, adjusts the temperature of the passenger compartment as described below.
- Referring to
FIG. 1 , when cooling the passenger compartment, theswitch valve 91 communicates thedischarge pipe 96 andpipe 97 and communicates thesuction pipe 95 andpipe 99. As a result, the high-temperature and high-pressure refrigerant compressed by thecompressor mechanism 3 flows in direction Dl. The refrigerant dissipates heat into the ambient air and liquefies at the passenger compartmentexterior heat exchanger 92. Then, the pressure of the refrigerant is decreased at theexpansion valve 93. Subsequently, the refrigerant absorbs heat from the air in the passenger compartment and vaporizes at the passenger compartmentinterior heat exchanger 94. This cools the air in the passenger compartment. The refrigerant then returns to the motor-driven compressor 1 via thepipe 99, theswitch valve 91, and thesuction pipe 95. - When heating the passenger compartment, the
switch valve 91 communicates thedischarge pipe 96 andpipe 99 and communicates thesuction pipe 95 andpipe 97. As a result, the high-temperature and high-pressure refrigerant compressed by thecompressor mechanism 3 flows in direction D2. The refrigerant dissipates heat into the air in the passenger compartment and liquefies at the passenger compartmentinterior heat exchanger 94. This heats the air in the passenger compartment. Then, the pressure of the refrigerant is decreased at theexpansion valve 93. Subsequently, the refrigerant absorbs heat from the ambient air and vaporizes at the passenger compartmentexterior heat exchanger 92. The refrigerant then returns to the motor-driven compressor 1 via thepipe 97, theswitch valve 91, and thesuction pipe 95. - In the motor-driven compressor 1 of the present embodiment, the
compressor mechanism 3 andmotor mechanism 5 are fixed to thefirst housing 10 with high rigidity. Further, the mountingportions 29, thesupports 8, and thebolts 9A fix thesecond housings object 9 with high rigidity. Thus, if the transmission of vibration and noise cannot be suppressed between thefirst housing 10 and thesecond housings compressor mechanism 3 andmotor mechanism 5 would be transmitted by thefirst housing 10 andsecond housings object 9 without being attenuated. This may adversely affect comfort in the environment of the passenger compartment. - In this regard, the motor-driven compressor 1 of the first embodiment includes the
first anti-vibration member 31, which is arranged between thefirst housing 10 and thesecond housing 21, and thefirst anti-vibration member 32, which is arranged between thefirst housing 10 and thesecond housing 22. Due to the firstanti-vibration members compressor mechanism 3 andmotor mechanism 5, from thefirst housing 10 to thesecond housings portions 29 of thesecond housings object 9. - Accordingly, the motor-driven compressor 1 of the present embodiment does not transmit vibration and noise to the exterior.
- The present embodiment also has the advantages described below.
- The
first anti-vibration member 31 is arranged between thefirst housing 10 and thesecond housings 21, and theanti-vibration member 32 is arranged between thefirst housing 10 and thesecond housings 22. Thus, thecompressor mechanism 3 andmotor mechanism 5, the structure for fastening thecompressor mechanism 3 andmotor mechanism 5 to thefirst housing 10, and the mountingportions 29 formed on thesecond housings - The
suction port 15 and thedischarge port 16 are respectively formed in thesecond housings first housing 10. This allows the firstanti-vibration members compressor mechanism 3 and themotor mechanism 5, from thefirst housing 10 to the exterior via thesuction port 15 and thedischarge port 16 of thesecond housings - The second
anti-vibration members 33 are also arranged between thesuction port 15 andsuction coupling 50 and between thedischarge port 16 and dischargecoupling 60. Thus, the secondanti-vibration members 33 suppress the transmission of vibration and noise, which are generated by thecompressor mechanism 3 and themotor mechanism 5, between thesecond housing 21 and thesuction coupling 50 and between thesecond housing 22 and dischargecoupling 60. As a result, the transmission of vibration and noise to the exterior is further suppressed. - The
first housing 10 is cylindrical and includes a first end, which is theopen end 10F, and a second end, which is theopen end 10E. Thesecond housing 21 faces theopen end 10E, and thesecond housing 22 faces theopen end 10F. This structure simplifies thefirst housing 10 and lowers the manufacturing cost. Further, thesecond housings first housing 10. This simplifies the assembling of the motor-driven compressor 1. - The
compressor mechanism 3 is fixed in the vicinity of the first end of thefirst housing 10. Themotor mechanism 5 is fixed in the vicinity of the second end of thefirst housing 10. This structure increases the rigidity of the cylindricalfirst housing 10. - It should be apparent to those skilled in the art that the present invention may be embodied in many other specific forms without departing from the spirit or scope of the invention. Particularly, it should be understood that the present invention may be embodied in the following forms.
- The
first housing 10 does not have to be cylindrical and does not have to include two open ends. Thefirst housing 10 may be formed by combining a plurality of members and include two closed ends. Further, as shown inFIG. 3 , thefirst housing 10 may include only one open end (left end as viewed inFIG. 3 ). In this case, thefirst housing 10 includes another end (right end as viewed inFIG. 3 ) closed by a disk-shapedend wall 10H. An opening 10I extends through theend wall 10H. Arim 10J extends along the periphery of theend wall 10H. Refrigerant is drawn into thecompressor mechanism 3 through thesuction port 15 and the opening 10I. Thesecond housing 21 faces therim 10J of thefirst housing 10. In this case, one end of thefirst housing 10 is closed by theend wall 10H. This increases the rigidity of thefirst housing 10. - The fastening structure and shapes of the mounting
portions 29, thesupports 8, and thebolts 9A are not limited to those of the above embodiments. Any structure can be employed as long as the mountingportions 29 can fix the motor-driven compressor 1 to the mountingobject 9. - The second
anti-vibration members 33 are arranged between thesuction port 15 andsuction coupling 50 and between thedischarge port 16 and dischargecoupling 60. However, either one of the secondanti-vibration members 33 may be eliminated. Alternatively, both secondanti-vibration members 33 may be eliminated. In this case, thesuction port 15 andsuction coupling 50 are directly coupled to each other, and thedischarge port 16 and dischargecoupling 60 are directly coupled to each other. - At least one of the
suction port 15 anddischarge port 16 may be arranged on thefirst housing 10. - The
compressor mechanism 3 is not limited to a scroll type and may be of a reciprocating type, a vane type, or any other known compression type. - The present examples and embodiments are to be considered as illustrative and not restrictive, and the invention is not to be limited to the details given herein, but may be modified within the scope and equivalence of the appended claims.
Claims (5)
1. A motor-driven compressor comprising:
a housing;
a compressor mechanism arranged in the housing, wherein the compressor mechanism draws refrigerant into the housing, compresses the refrigerant, and discharges the refrigerant from the housing;
a motor mechanism arranged in the housing, wherein the motor mechanism actuates the compressor mechanism,
wherein the housing includes a first housing, in which the compressor mechanism and the motor mechanism are fixed, and a second housing, which includes a mounting portion that can be mounted to another member; and
a first anti-vibration member arranged between the first housing and the second housing.
2. The motor-driven compressor according to claim 1 , wherein the second housing includes a suction port, which draws the refrigerant into the compressor mechanism, and a discharge port, which discharges the refrigerant from the compressor mechanism.
3. The motor-driven compressor according to claim 2 , wherein
outer pipes are relatively coupled to the suction port and the discharge port, and
a second anti-vibration member is arranged between at least one of the suction port and discharge port and the corresponding outer pipe.
4. The motor-driven compressor according to claim 1 , wherein
the first housing is cylindrical and includes a first end and a second end,
at least one of the first end and second end is an open end; and
the second housing is arranged facing the open end of the first housing.
5. The motor-driven compressor according to claim 4 , wherein
the compressor mechanism is fixed in the vicinity of the first end of the first housing, and
the motor mechanism is fixed in the vicinity of the second end of the first housing.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011077020A JP2012211531A (en) | 2011-03-31 | 2011-03-31 | Motor-driven compressor |
JP2011-077020 | 2011-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120251348A1 true US20120251348A1 (en) | 2012-10-04 |
Family
ID=45936953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/431,522 Abandoned US20120251348A1 (en) | 2011-03-31 | 2012-03-27 | Motor-driven compressor |
Country Status (5)
Country | Link |
---|---|
US (1) | US20120251348A1 (en) |
EP (1) | EP2505775A2 (en) |
JP (1) | JP2012211531A (en) |
KR (1) | KR20120112084A (en) |
CN (1) | CN102734120A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101982025B1 (en) * | 2013-11-05 | 2019-05-24 | 한온시스템 주식회사 | Compressor having damping member |
KR102043908B1 (en) * | 2015-02-26 | 2019-12-02 | 한온시스템 주식회사 | Electrically scroll compressor |
CN110873056A (en) * | 2018-08-30 | 2020-03-10 | 广东威灵汽车部件有限公司 | Compressor and air conditioner |
CN114729631A (en) * | 2019-12-06 | 2022-07-08 | 大金工业株式会社 | Compressor and compressor unit |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4184810A (en) * | 1977-03-02 | 1980-01-22 | Danfoss A/S | Compressor unit, particularly for refrigerators |
US4213745A (en) * | 1978-09-11 | 1980-07-22 | Roberts Samuel A | Pump for central heating system |
US4632645A (en) * | 1984-11-22 | 1986-12-30 | Sawafuji Electric Co., Ltd. | Vibrating compressor |
US4783968A (en) * | 1986-08-08 | 1988-11-15 | Helix Technology Corporation | Vibration isolation system for a linear reciprocating machine |
US4793775A (en) * | 1984-10-13 | 1988-12-27 | Aspera S.R.L. | Hermetic motor-compressor unit for refrigeration circuits |
US5038741A (en) * | 1990-04-13 | 1991-08-13 | Walbro Corporation | In-tank fuel module |
US5165867A (en) * | 1992-02-25 | 1992-11-24 | General Motors Corporation | Fuel pump mounting |
US5378121A (en) * | 1993-07-28 | 1995-01-03 | Hackett; William F. | Pump with fluid bearing |
US5980222A (en) * | 1997-11-13 | 1999-11-09 | Tecumseh Products Company | Hermetic reciprocating compressor having a housing divided into a low pressure portion and a high pressure portion |
US5997258A (en) * | 1994-05-31 | 1999-12-07 | Bristol Compressors, Inc. | Low noise refrigerant compressor having closed shells and sound absorbing spacers |
US6325600B1 (en) * | 1996-05-10 | 2001-12-04 | Empresa Brasileira De Compressores S./A - Embraco | Suction arrangement in a reciprocating hermetic compressor |
US6371739B1 (en) * | 1999-01-22 | 2002-04-16 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for applying pre-load to the bearing structure of a drive shaft that is directly driven by an electric motor |
US6543741B1 (en) * | 2001-12-26 | 2003-04-08 | Carrier Corporation | Vibration isolation for a transversely mounted compressor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009150234A (en) * | 2007-12-18 | 2009-07-09 | Toyota Industries Corp | Motor-driven compressor |
JP2009221969A (en) * | 2008-03-17 | 2009-10-01 | Calsonic Kansei Corp | Compressor |
-
2011
- 2011-03-31 JP JP2011077020A patent/JP2012211531A/en not_active Withdrawn
-
2012
- 2012-03-26 KR KR1020120030520A patent/KR20120112084A/en not_active Application Discontinuation
- 2012-03-27 CN CN201210084611XA patent/CN102734120A/en active Pending
- 2012-03-27 US US13/431,522 patent/US20120251348A1/en not_active Abandoned
- 2012-03-28 EP EP12161683A patent/EP2505775A2/en not_active Withdrawn
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4184810A (en) * | 1977-03-02 | 1980-01-22 | Danfoss A/S | Compressor unit, particularly for refrigerators |
US4213745A (en) * | 1978-09-11 | 1980-07-22 | Roberts Samuel A | Pump for central heating system |
US4793775A (en) * | 1984-10-13 | 1988-12-27 | Aspera S.R.L. | Hermetic motor-compressor unit for refrigeration circuits |
US4632645A (en) * | 1984-11-22 | 1986-12-30 | Sawafuji Electric Co., Ltd. | Vibrating compressor |
US4783968A (en) * | 1986-08-08 | 1988-11-15 | Helix Technology Corporation | Vibration isolation system for a linear reciprocating machine |
US5038741A (en) * | 1990-04-13 | 1991-08-13 | Walbro Corporation | In-tank fuel module |
US5165867A (en) * | 1992-02-25 | 1992-11-24 | General Motors Corporation | Fuel pump mounting |
US5378121A (en) * | 1993-07-28 | 1995-01-03 | Hackett; William F. | Pump with fluid bearing |
US5997258A (en) * | 1994-05-31 | 1999-12-07 | Bristol Compressors, Inc. | Low noise refrigerant compressor having closed shells and sound absorbing spacers |
US6325600B1 (en) * | 1996-05-10 | 2001-12-04 | Empresa Brasileira De Compressores S./A - Embraco | Suction arrangement in a reciprocating hermetic compressor |
US5980222A (en) * | 1997-11-13 | 1999-11-09 | Tecumseh Products Company | Hermetic reciprocating compressor having a housing divided into a low pressure portion and a high pressure portion |
US6371739B1 (en) * | 1999-01-22 | 2002-04-16 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for applying pre-load to the bearing structure of a drive shaft that is directly driven by an electric motor |
US6543741B1 (en) * | 2001-12-26 | 2003-04-08 | Carrier Corporation | Vibration isolation for a transversely mounted compressor |
Also Published As
Publication number | Publication date |
---|---|
EP2505775A2 (en) | 2012-10-03 |
KR20120112084A (en) | 2012-10-11 |
CN102734120A (en) | 2012-10-17 |
JP2012211531A (en) | 2012-11-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9181950B2 (en) | Motor-driven compressor | |
US9068458B2 (en) | Shock protector for a compressor's drive circuit | |
JP5403004B2 (en) | Electric compressor | |
US20120237381A1 (en) | Scroll-type compressor for vehicle | |
KR101399253B1 (en) | Refrigerating system for refrigerator vehicle | |
US20120251348A1 (en) | Motor-driven compressor | |
US6368074B1 (en) | Piston type compressor | |
JP5706819B2 (en) | Trailer refrigeration equipment | |
US9316226B2 (en) | Gas compressor for reducing oscillation in a housing thereof | |
WO2015005090A1 (en) | Gas-tight terminal fixing structure for gas compressor | |
KR20210012589A (en) | Compressor | |
JP2011231711A (en) | Electric compressor | |
JP2004051021A (en) | Compressor installation method on vehicle | |
JP2015121126A (en) | Gas compressor manufacturing method | |
JP2015090135A (en) | Gas compressor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OTA, TAKAYUKI;MURAKAMI, KAZUO;SUITOU, KEN;SIGNING DATES FROM 20120305 TO 20120306;REEL/FRAME:027942/0273 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |