US20150167669A1 - Pump structure - Google Patents
Pump structure Download PDFInfo
- Publication number
- US20150167669A1 US20150167669A1 US14/323,745 US201414323745A US2015167669A1 US 20150167669 A1 US20150167669 A1 US 20150167669A1 US 201414323745 A US201414323745 A US 201414323745A US 2015167669 A1 US2015167669 A1 US 2015167669A1
- Authority
- US
- United States
- Prior art keywords
- driving shaft
- inner rotor
- pressing body
- curved surface
- pump apparatus
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C15/0073—Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
-
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/28—Safety arrangements; Monitoring
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/02—Rotary-piston machines or pumps 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
Definitions
- the present invention relates to a pump structure, and more particularly, to a fuel pump structure of pumping fuel of a vehicle.
- FIG. 1 shows a fuel pump structure according to the related art, where the fuel pump structure is configured so that fuel is pumped by relatively and rotatably installing an inner rotor 502 and an outer rotor 504 in a housing 500 and rotating the inner rotor 502 by a driving shaft 506 .
- the driving shaft 506 is connected to the inner rotor 502 in a state in which it may transfer rotational force to the inner rotor 502 and a detailed structure thereof may be shown as in FIG. 2 .
- the driving shaft 506 and the inner rotor 502 have a keyway 508 formed therebetween so as to constrain each other in a rotation direction and a key 510 is inserted into the keyway 508 , such that the rotational force from the driving shaft 506 may be smoothly transferred to the inner rotor 502 .
- the fuel pump includes a relief valve configuration to prevent over-pressure from being generated.
- a relief valve configuration to prevent over-pressure from being generated.
- an oil leak, damage, or the like for a fuel hose or a fuel filter may be caused by over-pressure discharge.
- Various aspects of the present invention are directed to providing a pump structure capable of preventing damage to a driving shaft and preventing oil leak, damage, or the like of a fuel hose or a fuel filter in a situation in which the damage to the driving shaft is generated by continuously applying excessive rotational force to the driving shaft due to a mechanical stick caused in a fuel pump and a situation in which the oil leak, damage, or the like of the fuel hose or the fuel filter is concerned due to excessive fuel pressure formed in a fuel supplying line due to failure generated from a relief valve included in the fuel pump.
- a pump apparatus may include an inner rotor, a driving shaft, a curved surface formed at an inner circumference portion of the inner rotor into which the driving shaft is inserted, the curved surface being formed by a plurality of curves along a rotation direction of the driving shaft, and a pressing body slidably engaged in the driving shaft and elastically pressed in a radial direction of the driving shaft by the plurality of curves.
- the curved surface of the inner rotor is formed by repeating bent straight lines and is formed at an entire portion of the inner circumference portion in the inner rotor.
- the curved surface of the inner rotor may include upper and lower ridges alternatively repeated between the bent straight lines.
- the pressing body may include a spherical ball, wherein at least a portion of the spherical ball is slidably positioned in the driving shaft in a state in which the spherical ball is selectively pressed toward the curved surface.
- the pump apparatus may include a guide groove that is formed in the driving shaft along the radial direction thereof so that the pressing body is movable along the radial direction according to a rotation of the inner rotor, and an elastic member positioned inside the guide groove and applying elastic force to the pressing body against the inner circumference portion of the inner rotor.
- the elastic member may include a coil spring
- the pressing body may include a spherical ball
- a slide guide is placed between the elastic member and the pressing body inside the guide groove and supported by the elastic member to linearly slide in the guide groove so as to apply the elastic force provided by the elastic member to the pressing body.
- the pressing body may include a spherical ball.
- FIG. 1 is a configuration view showing a fuel pump structure according to the related art.
- FIG. 2 is a detailed view showing a connection structure of an inner rotor and a driving shaft of FIG. 1 .
- FIG. 3 is a view showing the connection structure of the inner rotor and the driving shaft as a pump structure according to an exemplary embodiment of the present invention.
- FIG. 4 which is a view describing an operation of the present invention, is a view describing a case in which power of the driving shaft is not transferred to the inner rotor when a pump stick and an excessive pumping pressure are generated.
- a pump structure may be configured to include a curved surface 5 formed at an inner circumference portion of an inner rotor 3 into which a driving shaft 1 is inserted, the curved surface 5 is formed by a plurality of curves along a rotation direction of the driving shaft 1 , and a pressing body 7 elastically pressed in a radial direction from the driving shaft 1 toward the curved surface 5 .
- the driving shaft 1 and the inner rotor 3 are coupled so that when a predetermined level or more of relative torque is applied between the driving shaft 1 and the inner rotor 3 , the pressing body 7 moves along the curved surface 5 to thereby relatively rotate the driving shaft 1 and the inner rotor 3 , unlike a state according to the related art in which the relative rotation of the driving shaft 1 and the inner rotor 3 is completely impossible. Thereby, excessive rotational force is not applied to the driving shaft 1 , thereby making it possible to prevent damage to the driving shaft 1 . In addition, even in the case in which a relief valve fails, when excessive pumping pressure is generated, the driving shaft 1 and the inner rotor 3 relatively rotate, thereby making it possible to prevent oil leak and damage to a fuel hose or a fuel pump.
- the curved surface 5 of the inner rotor 3 is formed by repeating bent straight lines and has a structure formed at the entire circumference of the inner circumference portion of the inner rotor 3 .
- the pressing body 7 is allowed to difficultly cross upper and lower ridges 10 and 20 of the curved surface 5 , such that the relative rotation of the driving shaft 1 and the inner rotor 3 is sufficiently limited in a normal operation state and may be performed only in an inevitable situation, thereby making it possible to secure more stable operation of the fuel pump.
- the upper and lower ridges 10 and 20 of the curved surface 5 are alternatively formed along the inner circumference of the inner rotor 3 .
- the pressing body 7 is configured of a spherical ball and the ball is formed so that at least a portion thereof is positioned in the driving shaft 1 in a state in which it is maximally pressed toward the curved surface 5 .
- the pressing body 7 may perform a cloud motion on the curved surface 5 so as not generate excessive abrasion or noise between the pressing body 7 and the inner rotor 3 and the rotational force of the driving shaft 1 may be stably transferred to the inner rotor 3 through the pressing body 7 .
- a guide groove 9 is formed in the driving shaft 1 along the radial direction so that the pressing body 7 may be moved along the radial direction and includes an elastic member 11 for applying elastic force to the pressing body 7 .
- the elastic member 11 is configured of a coil spring
- the pressing body 7 is configured of the spherical ball as described above
- a slide guide 13 linearly sliding in the guide groove 9 and capable of applying elastic force provided by the elastic member 11 to the pressing body 7 is included between the elastic member 11 and the pressing body 7 .
- the slide guide 13 allows a degree of freedom of a shape and a size of the elastic member 11 and the elastic force provided by the elastic member 11 may be stably transferred to the pressing body 7 , such that power of the driving shaft 1 is stably transferred to the inner rotor 3 in the normal situation and the relative rotation of the driving shaft 1 and the inner rotor 3 may be certainly allowed in an abnormal situation such as stick in the pump, the failure of the relief valve, or the like, thereby making it possible to secure durability of the driving shaft 1 and other parts.
- damage to a driving shaft may be prevented and the oil leak, the damage, or the like of the fuel hose or the fuel filter may be prevented in a situation in which damage to the driving shaft is generated by continuously applying excessive rotational force to the driving shaft due to mechanical stick caused in the fuel pump and a situation in which the oil leak, damage, or the like of the fuel hose or the fuel filter is concerned due to excessive fuel pressure formed in a fuel supplying line due to failure generated from the relief valve included in the fuel pump.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A pump apparatus may include an inner rotor, a driving shaft, a curved surface formed at an inner circumference portion of the inner rotor into which the driving shaft may be inserted, the curved surface being formed by a plurality of curves along a rotation direction of the driving shaft, and a pressing body slidably engaged in the driving shaft and elastically pressed in a radial direction of the driving shaft by the plurality of curves.
Description
- The present application claims priority to Korean Patent Application No. 10-2013-0157909, filed on Dec. 18, 2013, the entire contents of which is incorporated herein for all purposes by this reference.
- 1 Field of the Invention
- The present invention relates to a pump structure, and more particularly, to a fuel pump structure of pumping fuel of a vehicle.
- 2. Description of Related Art
-
FIG. 1 shows a fuel pump structure according to the related art, where the fuel pump structure is configured so that fuel is pumped by relatively and rotatably installing aninner rotor 502 and anouter rotor 504 in ahousing 500 and rotating theinner rotor 502 by adriving shaft 506. - Here, the
driving shaft 506 is connected to theinner rotor 502 in a state in which it may transfer rotational force to theinner rotor 502 and a detailed structure thereof may be shown as inFIG. 2 . - That is, the
driving shaft 506 and theinner rotor 502 have akeyway 508 formed therebetween so as to constrain each other in a rotation direction and akey 510 is inserted into thekeyway 508, such that the rotational force from thedriving shaft 506 may be smoothly transferred to theinner rotor 502. - However, when a gear stick or the like occurs in the fuel pump in the state in which the driving
shaft 506 and theinner rotor 502 are constrained to each other by thekey 510, if thedriving shaft 506 is continuously applied with the rotational force from the outside, thedriving shaft 506 may be damaged. - In addition, the fuel pump includes a relief valve configuration to prevent over-pressure from being generated. However, when the relief valve is stuck, an oil leak, damage, or the like for a fuel hose or a fuel filter may be caused by over-pressure discharge.
- The information disclosed in this Background of the Invention section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
- Various aspects of the present invention are directed to providing a pump structure capable of preventing damage to a driving shaft and preventing oil leak, damage, or the like of a fuel hose or a fuel filter in a situation in which the damage to the driving shaft is generated by continuously applying excessive rotational force to the driving shaft due to a mechanical stick caused in a fuel pump and a situation in which the oil leak, damage, or the like of the fuel hose or the fuel filter is concerned due to excessive fuel pressure formed in a fuel supplying line due to failure generated from a relief valve included in the fuel pump.
- In an aspect of the present invention, a pump apparatus may include an inner rotor, a driving shaft, a curved surface formed at an inner circumference portion of the inner rotor into which the driving shaft is inserted, the curved surface being formed by a plurality of curves along a rotation direction of the driving shaft, and a pressing body slidably engaged in the driving shaft and elastically pressed in a radial direction of the driving shaft by the plurality of curves.
- The curved surface of the inner rotor is formed by repeating bent straight lines and is formed at an entire portion of the inner circumference portion in the inner rotor.
- The curved surface of the inner rotor may include upper and lower ridges alternatively repeated between the bent straight lines.
- The pressing body may include a spherical ball, wherein at least a portion of the spherical ball is slidably positioned in the driving shaft in a state in which the spherical ball is selectively pressed toward the curved surface.
- The pump apparatus may include a guide groove that is formed in the driving shaft along the radial direction thereof so that the pressing body is movable along the radial direction according to a rotation of the inner rotor, and an elastic member positioned inside the guide groove and applying elastic force to the pressing body against the inner circumference portion of the inner rotor.
- The elastic member may include a coil spring, the pressing body may include a spherical ball, and a slide guide is placed between the elastic member and the pressing body inside the guide groove and supported by the elastic member to linearly slide in the guide groove so as to apply the elastic force provided by the elastic member to the pressing body.
- The pressing body may include a spherical ball.
- The methods and apparatuses of the present invention have other features and advantages which will be apparent from or are set forth in more detail in the accompanying drawings, which are incorporated herein, and the following Detailed Description, which together serve to explain certain principles of the present invention.
-
FIG. 1 is a configuration view showing a fuel pump structure according to the related art. -
FIG. 2 is a detailed view showing a connection structure of an inner rotor and a driving shaft ofFIG. 1 . -
FIG. 3 is a view showing the connection structure of the inner rotor and the driving shaft as a pump structure according to an exemplary embodiment of the present invention. -
FIG. 4 , which is a view describing an operation of the present invention, is a view describing a case in which power of the driving shaft is not transferred to the inner rotor when a pump stick and an excessive pumping pressure are generated. - It should be understood that the appended drawings are not necessarily to scale, presenting a somewhat simplified representation of various features illustrative of the basic principles of the invention. The specific design features of the present invention as disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes will be determined in part by the particular intended application and use environment.
- In the figures, reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing.
- Reference will now be made in detail to various embodiments of the present invention(s), examples of which are illustrated in the accompanying drawings and described below. While the invention(s) will be described in conjunction with exemplary embodiments, it will be understood that the present description is not intended to limit the invention(s) to those exemplary embodiments. On the contrary, the invention(s) is/are intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.
- Referring to
FIG. 3 , a pump structure according to an exemplary embodiment of the present invention may be configured to include acurved surface 5 formed at an inner circumference portion of aninner rotor 3 into which adriving shaft 1 is inserted, thecurved surface 5 is formed by a plurality of curves along a rotation direction of thedriving shaft 1, and a pressing body 7 elastically pressed in a radial direction from thedriving shaft 1 toward thecurved surface 5. - That is, the
driving shaft 1 and theinner rotor 3 are coupled so that when a predetermined level or more of relative torque is applied between thedriving shaft 1 and theinner rotor 3, the pressing body 7 moves along thecurved surface 5 to thereby relatively rotate thedriving shaft 1 and theinner rotor 3, unlike a state according to the related art in which the relative rotation of thedriving shaft 1 and theinner rotor 3 is completely impossible. Thereby, excessive rotational force is not applied to thedriving shaft 1, thereby making it possible to prevent damage to thedriving shaft 1. In addition, even in the case in which a relief valve fails, when excessive pumping pressure is generated, thedriving shaft 1 and theinner rotor 3 relatively rotate, thereby making it possible to prevent oil leak and damage to a fuel hose or a fuel pump. - According to the present embodiment, the
curved surface 5 of theinner rotor 3 is formed by repeating bent straight lines and has a structure formed at the entire circumference of the inner circumference portion of theinner rotor 3. - Therefore, as shown in
FIG. 4 , the pressing body 7 is allowed to difficultly cross upper andlower ridges curved surface 5, such that the relative rotation of thedriving shaft 1 and theinner rotor 3 is sufficiently limited in a normal operation state and may be performed only in an inevitable situation, thereby making it possible to secure more stable operation of the fuel pump. - In an exemplary embodiment of the present invention, the upper and
lower ridges curved surface 5 are alternatively formed along the inner circumference of theinner rotor 3. - The pressing body 7 is configured of a spherical ball and the ball is formed so that at least a portion thereof is positioned in the
driving shaft 1 in a state in which it is maximally pressed toward thecurved surface 5. - Therefore, when the
driving shaft 1 and theinner rotor 3 are relatively rotated, the pressing body 7 may perform a cloud motion on thecurved surface 5 so as not generate excessive abrasion or noise between the pressing body 7 and theinner rotor 3 and the rotational force of thedriving shaft 1 may be stably transferred to theinner rotor 3 through the pressing body 7. - A
guide groove 9 is formed in the drivingshaft 1 along the radial direction so that the pressing body 7 may be moved along the radial direction and includes anelastic member 11 for applying elastic force to the pressing body 7. - According to the present embodiment, there is provided a structure that the
elastic member 11 is configured of a coil spring, the pressing body 7 is configured of the spherical ball as described above, and aslide guide 13 linearly sliding in theguide groove 9 and capable of applying elastic force provided by theelastic member 11 to the pressing body 7 is included between theelastic member 11 and the pressing body 7. - Therefore, the
slide guide 13 allows a degree of freedom of a shape and a size of theelastic member 11 and the elastic force provided by theelastic member 11 may be stably transferred to the pressing body 7, such that power of thedriving shaft 1 is stably transferred to theinner rotor 3 in the normal situation and the relative rotation of thedriving shaft 1 and theinner rotor 3 may be certainly allowed in an abnormal situation such as stick in the pump, the failure of the relief valve, or the like, thereby making it possible to secure durability of the drivingshaft 1 and other parts. - According to the exemplary embodiment of the present invention, damage to a driving shaft may be prevented and the oil leak, the damage, or the like of the fuel hose or the fuel filter may be prevented in a situation in which damage to the driving shaft is generated by continuously applying excessive rotational force to the driving shaft due to mechanical stick caused in the fuel pump and a situation in which the oil leak, damage, or the like of the fuel hose or the fuel filter is concerned due to excessive fuel pressure formed in a fuel supplying line due to failure generated from the relief valve included in the fuel pump.
- For convenience in explanation and accurate definition in the appended claims, the terms “upper”, “lower”, “inner” and “outer” are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures.
- The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and their practical application, to thereby enable others skilled in the art to make and utilize various exemplary embodiments of the present invention, as well as various alternatives and modifications thereof. It is intended that the scope of the invention be defined by the Claims appended hereto and their equivalents.
Claims (7)
1. A pump apparatus, comprising:
an inner rotor;
a driving shaft;
a curved surface formed at an inner circumference portion of the inner rotor into which the driving shaft is inserted, the curved surface being formed by a plurality of curves along a rotation direction of the driving shaft; and
a pressing body slidably engaged in the driving shaft and elastically pressed in a radial direction of the driving shaft by the plurality of curves.
2. The pump apparatus of claim 1 , wherein the curved surface of the inner rotor is formed by repeating bent straight lines and is formed at an entire portion of the inner circumference portion in the inner rotor.
3. The pump apparatus of claim 2 , wherein the curved surface of the inner rotor includes upper and lower ridges alternatively repeated between the bent straight lines.
4. The pump apparatus of claim 1 ,
wherein the pressing body includes a spherical ball, and
wherein at least a portion of the spherical ball is slidably positioned in the driving shaft in a state in which the spherical ball is selectively pressed toward the curved surface.
5. The pump apparatus of claim 1 , further including:
a guide groove that is formed in the driving shaft along the radial direction thereof so that the pressing body is movable along the radial direction according to a rotation of the inner rotor; and
an elastic member positioned inside the guide groove and applying elastic force to the pressing body against the inner circumference portion of the inner rotor.
6. The pump apparatus of claim 5 ,
wherein the elastic member includes a coil spring,
wherein the pressing body includes a spherical ball, and
wherein a slide guide is placed between the elastic member and the pressing body inside the guide groove and supported by the elastic member to linearly slide in the guide groove so as to apply the elastic force provided by the elastic member to the pressing body.
7. The pump apparatus of claim 6 , wherein the pressing body includes a spherical ball.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130157909A KR20150071188A (en) | 2013-12-18 | 2013-12-18 | Pump structure |
KR10-2013-0157909 | 2013-12-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20150167669A1 true US20150167669A1 (en) | 2015-06-18 |
Family
ID=53367860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/323,745 Abandoned US20150167669A1 (en) | 2013-12-18 | 2014-07-03 | Pump structure |
Country Status (3)
Country | Link |
---|---|
US (1) | US20150167669A1 (en) |
KR (1) | KR20150071188A (en) |
CN (1) | CN104728101A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107725135A (en) * | 2017-11-21 | 2018-02-23 | 吉林大学 | Electrodeless adjustable type displacement-variable oil pump |
CN107940220A (en) * | 2017-11-21 | 2018-04-20 | 吉林大学 | Variable displacement vane type lubricating oil pump |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3447564A (en) * | 1967-05-31 | 1969-06-03 | Brunswick Corp | Leakproof valve |
JPS63223380A (en) * | 1987-03-11 | 1988-09-16 | Mitsubishi Metal Corp | Internal gear pump |
US20040219038A1 (en) * | 2001-10-13 | 2004-11-04 | Stanislaw Bodzak | Internal gear pump |
US7445438B2 (en) * | 2005-04-05 | 2008-11-04 | Magna Powertrain Usa, Inc. | Torque limited lube pump for power transfer devices |
-
2013
- 2013-12-18 KR KR1020130157909A patent/KR20150071188A/en not_active Application Discontinuation
-
2014
- 2014-07-03 US US14/323,745 patent/US20150167669A1/en not_active Abandoned
- 2014-07-28 CN CN201410362917.6A patent/CN104728101A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3447564A (en) * | 1967-05-31 | 1969-06-03 | Brunswick Corp | Leakproof valve |
JPS63223380A (en) * | 1987-03-11 | 1988-09-16 | Mitsubishi Metal Corp | Internal gear pump |
US20040219038A1 (en) * | 2001-10-13 | 2004-11-04 | Stanislaw Bodzak | Internal gear pump |
US7445438B2 (en) * | 2005-04-05 | 2008-11-04 | Magna Powertrain Usa, Inc. | Torque limited lube pump for power transfer devices |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107725135A (en) * | 2017-11-21 | 2018-02-23 | 吉林大学 | Electrodeless adjustable type displacement-variable oil pump |
CN107940220A (en) * | 2017-11-21 | 2018-04-20 | 吉林大学 | Variable displacement vane type lubricating oil pump |
Also Published As
Publication number | Publication date |
---|---|
CN104728101A (en) | 2015-06-24 |
KR20150071188A (en) | 2015-06-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HYUNDAI MOTOR COMPANY, KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LEE, KWANG RAK;REEL/FRAME:033241/0946 Effective date: 20140529 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |