WO2009062276A1 - Pressure control unit - Google Patents
Pressure control unit Download PDFInfo
- Publication number
- WO2009062276A1 WO2009062276A1 PCT/BR2008/000341 BR2008000341W WO2009062276A1 WO 2009062276 A1 WO2009062276 A1 WO 2009062276A1 BR 2008000341 W BR2008000341 W BR 2008000341W WO 2009062276 A1 WO2009062276 A1 WO 2009062276A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- control unit
- pressure control
- fact
- pressure
- upper portion
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/048—Arrangements for compressed air preparation, e.g. comprising air driers, air condensers, filters, lubricators or pressure regulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/022—Stopping, starting, unloading or idling control by means of pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/05—Pressure after the pump outlet
Definitions
- the present invention relates to a novel pressure control unit for piston compressors, which was never described in prior art up to the present
- the main object of the present invention is to combine all essential devices used in conjunction with a piston compressor into one equipment
- the piston compressor is part of a group of positive displacement compressors (volumetric) and essentially uses a connecting rod and piston assembly, in order to convert the rotary motion of a translational axis of a piston or plunger
- the piston performs a forth stroke and another back stroke in the direction of the cylinder head, creating a cycle of operation
- This type of compressor has its operation closely related to the valves that control the air input, air compression and air expansion cycles
- air compressors including piston compressors
- said instruments and components comprise
- Pressure gauges which are used to indicate the existing air pressures Generally, these pressure gauges indicate the pressure within the compressor reservoirs and the pressure of the air outlet,
- the first disadvantage refers to the existence of different points of connection, which results in higher probability of air leakage between said above-mentioned components and instruments
- the second disadvantage refers to the need of assembly and eventual welding of all above-mentioned components and instruments, which requires time and qualified labor
- the present invention was developed in order to overcome these and other drawbacks of the prior art, by providing a novel pressure control unit for air compressors, which was never described in prior art up to the present
- the pressure control unit comprises all basic instruments and components combined into a single robust and practical housing
- the pressure control unit has a major model and a constructive variant, wherein said major model is essentially digital and said constructive variant is essentially analog
- Figure 1 illustrates a front upper perspective view of the pressure control unit, according to the present invention
- Figure 2 illustrates a side lower perspective view of the pressure control unit, according to the present invention
- Figure 3 illustrates a front upper perspective view of a constructive variant of the pressure control unit depicted in Figures 1 and 2, according to the present invention
- the pressure control unit which is indicated with the reference numeral (1), comprises an essentially quadrangular body formed by the unification of an upper portion (2) and a lower portion (3)
- Said upper portion (2) which is a parallelepiped-shaped block, has a frontal surrounding frame (2 1), and inside of said frontal surrounding frame (2 1), there is the face (2 2) of said upper portion (2)
- Said face (2 2) has a digital display (2 3), with three buttons (2 4) and light-emitting signaling units (2 5)
- Said digital display (2 3) has a rectangular profile and is arranged centrally in said face (2 2) of the upper portion (2)
- Said buttons (2 4) have circular profiles and are horizontally arranged just below the digital display (2 3)
- Said light-emitting signaling units (2 5), preferably light-emitting diodes (LEDs) have circular profiles and are arranged vertically next to the sides of said digital display (2 3)
- the top of said upper portion (2) also has an emergency button (2 6)
- one of the side walls of said upper portion (2) comprises a series of vertical slots (2 7), which are used for the cooling of said upper portion (2) and its respective internal components
- the lower portion (3) which is a parallelepiped-shaped block, has a posterior recess (3 1 ), as shown in Figures 1 and 2
- the face (3.2) of said lower portion (3) has an annular projection (3.3), from which is extended the handle (3.4) of a pressure regulating valve (not shown), which is housed within said lower portion (3).
- Said face (3.2) also has a low-relief side lower area (3.5), and in this area (3.5), there is a selector switch (3.6).
- Said selector switch (3.6) has an open/closed position.
- Said lower portion (3) also has a safety valve (3.9) and a pressure relief valve (3.10) arranged in one of its side walls. It is also noted an air outlet hole (3.11) arranged in the side wall opposite to the above-mentioned wall.
- the pressure control unit (1 ), according to the present invention was designed to replace all of the basic instruments and devices used in conjunction with compressors. Consequently, the pressure control unit (1 ), according to the present invention, comprises a single air input (3.8), wherein said air input (3.8) is connected to the air output of the compressor (not shown). The compressed air from the compressor "feeds" then the pressure control unit (1 ).
- the pressure of this compressed air is adjusted by a handle (3.4) of a pressure-regulating valve.
- the air obtained in the air output hole (3.11) is sized as needed by said pressure-regulating valve.
- Said digital display (2.3) was designed to indicate the internal pressure of the compressor (the same pressure in the air input (3.8)), the working pressure (the pressure of the air output hole (3.11)), and the set point (the amount of pressure required to turn-on and turn-off the engine and the compressor).
- buttons (2.4) that is, when each button is clicked on (note that just one button is clicked on at a time), the pressure that will be displayed on the digital display (2.3) is determined.
- the pressure control unit (1 ), according to the present invention, as described above, comprises de following safety devices:
- the selector switch (3 6) opens and closes the air inlet of the pressure control unit (1 ).
- the present invention also provides a constructive variant, which is illustrated in Figure 3.
- Said constructive variant which is indicated with the reference numeral (4), is essentially similar to the pressure control unit (1).
- said constructive variant (4) has an essentially parallelepiped shape (instead of an essentially quadrangular shape, as in the case of the pressure control unit (1)).
- said constructive variant comprises only one analog dual pressure indicator (4.1) on the face of its upper portion.
- Said analog dual pressure indicator (4.1) is provided with two scales and two pointers (a pointer for each scale).
- a scale and its respective pointer indicate the pressure of the compressor (and therefore, the inlet pressure), and the other said scale and its respective pointer indicate the output pressure.
- the constructive variant (4) does not have switching buttons and light-emitting signaling units, and pressure values for switching on/off the motor are pre-adjusted during the production process.
- control unit of pressure (1) offers many advantages For manufacturers of compressors, the main advantages can be summarized as follows
- the pressure control unit (1 ) exhibits technical merit, absolute novelty, inventive activity and industrial applicability, therefore fully deserving the privilege of the invention now being claimed
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Control Of Fluid Pressure (AREA)
- Compressor (AREA)
- Fluid-Driven Valves (AREA)
- Feeding And Controlling Fuel (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention relates to a novel pressure control unit (1) for air compressors, which was never described in prior art up to the present. The pressure control unit (1) comprises all basic instruments and components, namely a pressure regulating valve (3.4), a safety valve (3.9), a pressure relief valve (3.10), an emergency button (2.6) and a selector switch (3.6), combined into a single robust and practical housing 2,3) comprising an inlet (3.8) and an outlet (3.11). The pressure control unit, according to the present invention, has a major model and a constructive variant, wherein said major model is essentially digital (2.3, 2.4, 2.5), and said constructive variant is essentially analog (4.1). The main advantages from the use of the pressure control unit, according to the present invention, are related to the following features: easy installation; simple and pleasant interface, and long lifetime of the internal components and instruments, which are protected by a robust housing.
Description
"PRESSURE CONTROL UNIT"
FIELD OF THE INVENTION
The present invention relates to a novel pressure control unit for piston compressors, which was never described in prior art up to the present
The main object of the present invention is to combine all essential devices used in conjunction with a piston compressor into one equipment
BACKGROUND OF THE INVENTION
The piston compressor is part of a group of positive displacement compressors (volumetric) and essentially uses a connecting rod and piston assembly, in order to convert the rotary motion of a translational axis of a piston or plunger Thus, in each rotation of the actuator, the piston performs a forth stroke and another back stroke in the direction of the cylinder head, creating a cycle of operation This type of compressor has its operation closely related to the valves that control the air input, air compression and air expansion cycles
Due to the automatic operation of valves, the compressor aspires and discharges the gas respectively in pressures instantly reigning in the suction line and outlet line
Typically, air compressors, including piston compressors, require a series of components and instruments so they can be used correctly In essence, said instruments and components comprise
• Pressure gauges, which are used to indicate the existing air pressures Generally, these pressure gauges indicate the pressure within the compressor reservoirs and the pressure of the air outlet,
• Two-position two-way valves, which are used in case of failure of said pressure gauges,
• On/off Selector switches, whose function is to control the compressor motor operation,
• Pressure sensor, which is directly associated with the electric motor,
• Pressure regulator, which controls the compressor output pressure and,
• Pipes and fittings
Currently, all these components and instruments are installed separately and interconnected by pipes and fittings
Consequently, the current state of the art comprises, as the context described above three major disadvantages, which are discussed below
The first disadvantage refers to the existence of different points of connection, which results in higher probability of air leakage between said above-mentioned components and instruments
The second disadvantage refers to the need of assembly and eventual welding of all above-mentioned components and instruments, which requires time and qualified labor
The third disadvantage is related to the fragility of said components and instruments since they are assembled at the upper portion of the compressor reservoir
Therefore, based on the above-mentioned context, it is clear that there is a need for the construction of a new equipment that solves the above- mentioned problems
SUMMARY OF THE INVENTION
The present invention was developed in order to overcome these and other drawbacks of the prior art, by providing a novel pressure control unit for air compressors, which was never described in prior art up to the present
The pressure control unit, according to the present invention, comprises all basic instruments and components combined into a single robust and practical housing
The pressure control unit, according to the present invention, has a major model and a constructive variant, wherein said major model is essentially digital and said constructive variant is essentially analog
The main advantages from the use of the pressure control unit, according to the present invention, are related to the following features
- easy installation,
- simple and pleasant interface, and,
- long lifetime of the internal components and instruments, which are protected by a robust housing
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will become more fully understood from the detailed description given here below, the appended claims, and the accompanying drawings in which
Figure 1 illustrates a front upper perspective view of the pressure control unit, according to the present invention
Figure 2 illustrates a side lower perspective view of the pressure control unit, according to the present invention
Figure 3 illustrates a front upper perspective view of a constructive variant of the pressure control unit depicted in Figures 1 and 2, according to the present invention
DETAILED DESCRIPTION OF THE INVENTION
The pressure control unit, according to the present invention, which is indicated with the reference numeral (1), comprises an essentially quadrangular body formed by the unification of an upper portion (2) and a lower portion (3)
Said upper portion (2), which is a parallelepiped-shaped block, has a frontal surrounding frame (2 1), and inside of said frontal surrounding frame (2 1), there is the face (2 2) of said upper portion (2)
Said face (2 2) has a digital display (2 3), with three buttons (2 4) and light-emitting signaling units (2 5)
Said digital display (2 3) has a rectangular profile and is arranged centrally in said face (2 2) of the upper portion (2) Said buttons (2 4) have circular profiles and are horizontally arranged just below the digital display (2 3) Said light-emitting signaling units (2 5), preferably light-emitting diodes (LEDs), have circular profiles and are arranged vertically next to the sides of said digital display (2 3)
The top of said upper portion (2) also has an emergency button (2 6)
It is important to emphasize that one of the side walls of said upper portion (2) comprises a series of vertical slots (2 7), which are used for the cooling of said upper portion (2) and its respective internal components
The lower portion (3), which is a parallelepiped-shaped block, has a posterior recess (3 1 ), as shown in Figures 1 and 2
The face (3.2) of said lower portion (3) has an annular projection (3.3), from which is extended the handle (3.4) of a pressure regulating valve (not shown), which is housed within said lower portion (3).
Said face (3.2) also has a low-relief side lower area (3.5), and in this area (3.5), there is a selector switch (3.6).
Said selector switch (3.6) has an open/closed position.
Under said selector switch (3.6), there is a protrusion (3.7), from which is projected the air inlet (3.8) that is a high-relief annular structure.
Said lower portion (3) also has a safety valve (3.9) and a pressure relief valve (3.10) arranged in one of its side walls. It is also noted an air outlet hole (3.11) arranged in the side wall opposite to the above-mentioned wall.
As the construction of the pressure control unit (1 ) is basic, it is easy to observe its operation.
As previously mentioned, the pressure control unit (1 ), according to the present invention, was designed to replace all of the basic instruments and devices used in conjunction with compressors. Consequently, the pressure control unit (1 ), according to the present invention, comprises a single air input (3.8), wherein said air input (3.8) is connected to the air output of the compressor (not shown). The compressed air from the compressor "feeds" then the pressure control unit (1 ).
The pressure of this compressed air is adjusted by a handle (3.4) of a pressure-regulating valve. Thus, the air obtained in the air output hole (3.11) is sized as needed by said pressure-regulating valve.
Said digital display (2.3) was designed to indicate the internal pressure of the compressor (the same pressure in the air input (3.8)), the working pressure (the pressure of the air output hole (3.11)), and the set point (the amount of pressure required to turn-on and turn-off the engine and the compressor).
The indication of each one of these three pressure parameters is shown individually, wherein the switching of these indications is accomplished through buttons (2.4), that is, when each button is clicked on (note that just one button is clicked on at a time), the pressure that will be displayed on the digital display (2.3) is determined.
Said light-emitting signaling units (2 5), together with any additional captions, were designed to indicate which pressure is being displayed on the digital display (2.3).
The pressure control unit (1 ), according to the present invention, as described above, comprises de following safety devices:
- Emergency button (2.6): when it is pressed, the emergency button (2 6) interrupts the operation of said pressure control unit (1 );
- Safety valve (3.9): it is set to "open" at a given pressure, and;
- Pressure relief valve (3.10): it exhausts the air from the chamber of the compressor cylinder, allowing the engine to start-up with pressure relief, resulting in lower start-up electrical current.
It should also be mentioned that the selector switch (3 6) opens and closes the air inlet of the pressure control unit (1 ).
The present invention also provides a constructive variant, which is illustrated in Figure 3.
Said constructive variant, which is indicated with the reference numeral (4), is essentially similar to the pressure control unit (1). However, said constructive variant (4) has an essentially parallelepiped shape (instead of an essentially quadrangular shape, as in the case of the pressure control unit (1)).
Furthermore, said constructive variant comprises only one analog dual pressure indicator (4.1) on the face of its upper portion.
Said analog dual pressure indicator (4.1) is provided with two scales and two pointers (a pointer for each scale). A scale and its respective pointer indicate the pressure of the compressor (and therefore, the inlet pressure), and the other said scale and its respective pointer indicate the output pressure.
It should me mentioned that the constructive variant (4) does not have switching buttons and light-emitting signaling units, and pressure values for switching on/off the motor are pre-adjusted during the production process.
Based on the above-described context, it is clear that the use of the control unit of pressure (1), according to the present invention, offers many advantages
For manufacturers of compressors, the main advantages can be summarized as follows
• Reducing the number of components, allowing the purchase of a single piece,
• Reduction of assembly time,
• Reduction of labor for assembly,
• Reduction of leakages, since it is a single component without multiple connections, and,
• Possibility of configuration tailored to customers' needs
For users of compressors, the main advantages can be summarized as follows
• Easy and friendly operation,
• Small percentage of maintenance,
• Robustness, and,
• Security
It should also be noted that Figures 1 , 2 and 3 are only to exemplify the present invention, but not to limit the scope of the present invention
Based on the above mentioned, it is possible to say that the pressure control unit (1 ), according to the present invention, exhibits technical merit, absolute novelty, inventive activity and industrial applicability, therefore fully deserving the privilege of the invention now being claimed
Claims
1 ) Pressure control unit characterized by the fact that it comprises
- a digital display (2 3),
- an emergency button (2 6),
- a handle (3 4) of a pressure-regulating valve,
- a selector switch (3 6),
- an air input (3 8),
- a safety valve (3 9),
- a pressure relief valve (3 10), and,
- an air output hole (3 11)
2) Pressure control unit, according to claim 1 , characterized by the fact that said digital display (2 3), said emergency button (2 6), said handle (3 4) of a pressure-regulating valve, said selector switch (3 6), said air input (3 8), said safety vaive (3 9) and said pressure relief valve (3 10) are inserted into a essentially quadrangular body
3) Pressure control unit, according to claim 2, characterized by the fact that said essentially quadrangular body is formed by the unification of said upper portion (2) and said lower portion (3)
4) Pressure control unit, according to claim 3, characterized by the fact that said upper portion (2) has a frontal surrounding frame (2 1 ), and inside of said frontal surrounding frame (2 1), there is the face (2 2) of said upper portion (2)
5) Pressure control unit, according to claims 1 , 3, and 4, characterized by the fact that said digital display (2 3) is located on the face (2 2) of said upper portion (2)
6) Pressure control unit, according to claims 1 , 3, 4, and 5, characterized by the fact that said digital display (2 3) has a rectangular profile and is arranged centrally in said face (2 2) of the upper portion (2)
7) Pressure control unit, according to claim 4, characterized by the fact that said face (2 2) of the upper portion (2) comprises three buttons (2 4) and light-emitting signaling units (2 5)
8) Pressure control unit, according to claim 7, characterized by the fact that said buttons (2.4) and said light-emitting signaling units (2.5) have circular profiles.
9) Pressure control unit, according to claims 4 and 7, characterized by the fact that said buttons (2.4) and said light-emitting signaling units (2.5) are horizontally arranged just below said digital display (2.3) and said light- emitting signaling units (2.5) are arranged vertically next to the sides of said digital display (2.3).
10) Pressure control unit, according to claims 1 and 3, characterized by the fact that said emergency button (2.6) is located at the top of said upper portion (2).
11 ) Pressure control unit, according to claim 3, characterized by the fact that one of the side walls of said upper portion (2) comprises a series of vertical slots (2.7).
12) Pressure control unit, according to claim 3, characterized by the fact that the face (3.2) of said lower portion (3) has an annular projection (3.3).
13) Pressure control unit, according to claims 1 , 3 and 12, characterized by the fact that said handle (3.4) of a pressure-regulating valve is projected from the annular projection (3.3) located on the face (3.2) of said portion lower (3).
14) Pressure control unit, according to claims 1 , 3 and 13, characterized by the fact that said selector switch (3.6) is located in a low-relief side lower area (3.5) existing on the face (3.2) of said lower portion (3).
15) Pressure control unit, according to claim 14, characterized by the fact that under the selector switch (3.6) there is a protrusion (3.7), from which is projected the air inlet (3.8)
16) Pressure control unit, according to claim 15, characterized by the fact that said air inlet (3.8) is a high-relief annular structure.
17) Pressure control unit, according to claims 1 and 3, characterized by the fact that said lower portion (3) further comprises a safety valve (3.9) and a pressure relief valve (3.10).
18) Pressure control unit, according to claims 1 , 3, and 17, characterized by the fact that said safety valve (3.9) and said pressure relief valve (3.10) are arranged in a side wall of said lower portion (3).
19) Pressure control unit, according to claims 1 and 3, characterized by the fact that said lower portion (3) further comprises an air output hole (3.11 ).
20) Pressure control unit, according to claims 1 , 3, 17, 18, and 19, characterized by the fact that said air output hole (3.11 ) is located on the side wall opposite to the wall where said valves (3.9) and (3.10) are located.
21 ) Pressure control unit, according to claim 3, characterized by the fact that said lower portion (3) has a posterior recess (3.1).
22) Pressure control unit, according to claim 3, characterized by the fact that said upper portion (2) and said lower portion (3) comprise parallelepiped-shaped blocks.
23) Pressure control unit, according to claim 1 , characterized by the fact that said digital display (2.3) indicates the internal pressure of the compressor, the working pressure, and the desired pressure, in accordance with the handling of said handle (3.4) of a pressure-regulating valve.
24) Pressure control unit, according to claim 23, characterized by the fact that the indication of each one of the three pressure parameters is shown individually.
25) Pressure control unit, according to claims 1 , 7, 23, and 24, characterized by the fact that the switching of said pressure parameters indicated in a digital display (2.3) is accomplished through buttons (2.4), wherein just one button (2.4) is clicked on at a time.
26) Pressure control unit, according to claim 7, characterized by the fact that said light-emitting signaling units (2.5) are, preferably, light-emitting diodes (LEDs).
27) Pressure control unit, according to claim 7, characterized by the fact that, optionally, additional captions can be used in conjunction with said light-emitting signaling units (2.5).
28) Pressure control unit, according to claim 1 , characterized by the fact that said selector switch (3.6) has an open/closed position.
29) Pressure control unit, as a constructive variant (4) similar to the pressure control unit (1 ), according to the previous claims, characterized by the fact said constructive variant has an essentially parallelepiped shape and comprises only one analog dual pressure indicator (4 1 ) on the face of its upper portion, wherein said analog dual pressure indicator (4 1) is provided with two scales and two pointers, wherein said scale and its respective pointer indicate the pressure of the compressor and the other said scale and its respective pointer indicate the output pressure
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/739,996 US20100322786A1 (en) | 2007-11-14 | 2008-11-14 | Pressure control unit |
EP08849511A EP2217814A1 (en) | 2007-11-14 | 2008-11-14 | Pressure control unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0705341-0 | 2007-11-14 | ||
BRPI0705341-0A BRPI0705341A2 (en) | 2007-11-14 | 2007-11-14 | pressure control unit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009062276A1 true WO2009062276A1 (en) | 2009-05-22 |
Family
ID=40405790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2008/000341 WO2009062276A1 (en) | 2007-11-14 | 2008-11-14 | Pressure control unit |
Country Status (9)
Country | Link |
---|---|
US (1) | US20100322786A1 (en) |
EP (1) | EP2217814A1 (en) |
AR (1) | AR069336A1 (en) |
BR (1) | BRPI0705341A2 (en) |
CL (1) | CL2008003387A1 (en) |
CO (1) | CO6120172A1 (en) |
EC (1) | ECSP088892A (en) |
PE (1) | PE20091698A1 (en) |
WO (1) | WO2009062276A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105136407A (en) * | 2015-08-27 | 2015-12-09 | 浙江联宜电机有限公司 | Worm gear box tightness test device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4969801A (en) * | 1989-11-06 | 1990-11-13 | Ingersoll-Rand Company | Method and apparatus for shutting off a compressor when it rotates in reverse direction |
WO1999066213A1 (en) * | 1998-06-17 | 1999-12-23 | J. Lorch Gesellschaft & Co. Gmbh | Device for the maintenance of compressed-air systems |
EP1207303A2 (en) * | 2000-11-17 | 2002-05-22 | FINI ELETTROCOSTRUZIONI MECCANICHE S.p.A. | Integrated instrument assembly for compressors |
EP1400702A2 (en) * | 2002-09-17 | 2004-03-24 | Festo AG & Co | Pneumatic arrangement with several service modules for compressed air preparation |
DE102004005982B3 (en) * | 2004-02-06 | 2005-06-30 | Festo Ag & Co. | Pressurized air preparation device has each function module provided by pneumatic base block combined with different function blocks selected to suit specific requirements |
WO2006037118A2 (en) * | 2004-09-28 | 2006-04-06 | Black & Decker Inc. | Air compressor assembly having removable air compressor |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5054995A (en) * | 1989-11-06 | 1991-10-08 | Ingersoll-Rand Company | Apparatus for controlling a fluid compression system |
US5303733A (en) * | 1993-02-08 | 1994-04-19 | Robertshaw Controls Company | Pressure regulating unit for beverage dispensing system |
US5713724A (en) * | 1994-11-23 | 1998-02-03 | Coltec Industries Inc. | System and methods for controlling rotary screw compressors |
US5967757A (en) * | 1997-03-24 | 1999-10-19 | Gunn; John T. | Compressor control system and method |
US6328690B1 (en) * | 1998-07-03 | 2001-12-11 | Asahi Kogaku Kogyo Kabushiki Kaisha | Air feeding device for endoscope |
US6447257B2 (en) * | 2000-07-19 | 2002-09-10 | Campbell Hausfeld/Scott Fetzer Company | Air compressor assembly with vibration damping structure |
US7013906B2 (en) * | 2002-03-06 | 2006-03-21 | Pearson Ronald W | System for monitoring and operating valve manifolds and method therefore |
US6955198B2 (en) * | 2003-09-09 | 2005-10-18 | Advanced Technology Materials, Inc. | Auto-switching system for switch-over of gas storage and dispensing vessels in a multi-vessel array |
US7272977B2 (en) * | 2004-03-31 | 2007-09-25 | Black & Decker Inc. | Dual gauge |
GB0612913D0 (en) * | 2006-06-30 | 2006-08-09 | Finsbury Dev Ltd | Apparatus |
US7762790B2 (en) * | 2007-02-05 | 2010-07-27 | Black & Decker Inc. | Air compressor |
-
2007
- 2007-11-14 BR BRPI0705341-0A patent/BRPI0705341A2/en not_active IP Right Cessation
-
2008
- 2008-11-14 CO CO08122028A patent/CO6120172A1/en not_active Application Discontinuation
- 2008-11-14 CL CL2008003387A patent/CL2008003387A1/en unknown
- 2008-11-14 PE PE2008001926A patent/PE20091698A1/en not_active Application Discontinuation
- 2008-11-14 EC EC2008008892A patent/ECSP088892A/en unknown
- 2008-11-14 US US12/739,996 patent/US20100322786A1/en not_active Abandoned
- 2008-11-14 WO PCT/BR2008/000341 patent/WO2009062276A1/en active Application Filing
- 2008-11-14 AR ARP080104992A patent/AR069336A1/en not_active Application Discontinuation
- 2008-11-14 EP EP08849511A patent/EP2217814A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4969801A (en) * | 1989-11-06 | 1990-11-13 | Ingersoll-Rand Company | Method and apparatus for shutting off a compressor when it rotates in reverse direction |
WO1999066213A1 (en) * | 1998-06-17 | 1999-12-23 | J. Lorch Gesellschaft & Co. Gmbh | Device for the maintenance of compressed-air systems |
EP1207303A2 (en) * | 2000-11-17 | 2002-05-22 | FINI ELETTROCOSTRUZIONI MECCANICHE S.p.A. | Integrated instrument assembly for compressors |
EP1400702A2 (en) * | 2002-09-17 | 2004-03-24 | Festo AG & Co | Pneumatic arrangement with several service modules for compressed air preparation |
DE102004005982B3 (en) * | 2004-02-06 | 2005-06-30 | Festo Ag & Co. | Pressurized air preparation device has each function module provided by pneumatic base block combined with different function blocks selected to suit specific requirements |
WO2006037118A2 (en) * | 2004-09-28 | 2006-04-06 | Black & Decker Inc. | Air compressor assembly having removable air compressor |
Also Published As
Publication number | Publication date |
---|---|
BRPI0705341A2 (en) | 2009-07-07 |
PE20091698A1 (en) | 2009-11-07 |
CL2008003387A1 (en) | 2009-10-02 |
US20100322786A1 (en) | 2010-12-23 |
CO6120172A1 (en) | 2010-01-29 |
EP2217814A1 (en) | 2010-08-18 |
AR069336A1 (en) | 2010-01-13 |
ECSP088892A (en) | 2009-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2699270C (en) | Method for compressing gaseous fuel for fuelling vehicle and device for implementation thereof | |
CN201747313U (en) | High pressure oil and gas well safety control device | |
JP2017529247A (en) | Method of operating hydrodynamic compression tool and hydrodynamic compression tool | |
EP1722173A3 (en) | Two-Stage linear compressor | |
CN104769287B (en) | The servo drive of fluid | |
CN201739559U (en) | Double gas source fuel gas control device capable of selecting gas outlet automatically | |
CN103672068A (en) | Novel reversing valve | |
CN103334913B (en) | A kind of control system of air compressor | |
US20100322786A1 (en) | Pressure control unit | |
CN103672066B (en) | Cut-off valve | |
CN103883525A (en) | Double-stage compressor | |
CN214946648U (en) | Gas pressure reducer | |
CN212480143U (en) | Pneumatic stop valve | |
CN104074811A (en) | Continuous booster station | |
US20100012475A1 (en) | Combination pressure switch | |
CN113483265B (en) | Air compressor machine of multistage decompression | |
CN212567828U (en) | Portable integrated air tightness test device | |
TW201533320A (en) | High-pressure to low-pressure changeover valve for a positive displacement pump | |
CN201112259Y (en) | Hydraulic integration operating mechanism for high-voltage circuit-breaker | |
JP2000087902A (en) | Cylinder device having pressure intensifying mechanism operated by change of pressure | |
CN206503793U (en) | A kind of numerical control bender integrated hydraulic system | |
RU2377443C1 (en) | Restriction method of maximum permissible compression ratio of pressurising compressor and device for its implementation | |
CN100398890C (en) | Powerless mechanical feedback type automatic adjustment valve of air-feed flow | |
CN212337753U (en) | Integrated hydraulic control valve bank of rapid bending machine | |
CN217276742U (en) | Integrated glove leak detector for isolator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08849511 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12739996 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 3269/DELNP/2010 Country of ref document: IN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008849511 Country of ref document: EP |