WO2016056859A1 - Soupape de commande de pompe à huile - Google Patents

Soupape de commande de pompe à huile Download PDF

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Publication number
WO2016056859A1
WO2016056859A1 PCT/KR2015/010667 KR2015010667W WO2016056859A1 WO 2016056859 A1 WO2016056859 A1 WO 2016056859A1 KR 2015010667 W KR2015010667 W KR 2015010667W WO 2016056859 A1 WO2016056859 A1 WO 2016056859A1
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WO
WIPO (PCT)
Prior art keywords
port
holder
spool
spring
discharge port
Prior art date
Application number
PCT/KR2015/010667
Other languages
English (en)
Korean (ko)
Inventor
이창훈
문국찬
김철호
박지훈
김문학
Original Assignee
주식회사 유니크
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 주식회사 유니크 filed Critical 주식회사 유니크
Publication of WO2016056859A1 publication Critical patent/WO2016056859A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid

Definitions

  • the present invention relates to an oil pump control valve, and more particularly, to an oil pump control valve capable of adjusting the pressure of oil discharged to the engine according to the number of revolutions of the engine.
  • the engine of an automobile is designed to circulate oil for lubrication and cooling of various parts mounted on the engine.
  • Such an engine is provided with an oil pump for circulating oil and a relief valve for preventing an excessive rise in the pressure of the oil discharged from the oil pump (hereinafter, also referred to as 'discharge pressure').
  • the oil pump is composed of a housing 1 in which the transfer paths 5 and 7 are formed therein and a relief valve (not shown) provided on the transfer path 1.
  • the oil introduced into the oil pump is conveyed along the conveying paths 5 and 7, compressed at a predetermined pressure in the conveying process, and then discharged through the side of the housing 1.
  • the relief valve includes a plunger 20 provided to be able to slide up and down inside the valve hole 10, a spring 30 elastically supporting the plunger 20, and a support portion 40 supporting the spring 30. .
  • the relief valve keeps the discharge pressure constant by opening the valve hole 10 to discharge a part of the oil when the discharge pressure of the oil pump is excessively increased.
  • the relief valve is an on-off valve for opening or closing the valve hole 10
  • the relief valve is opened only when the engine revolutions per minute (RPM) increases and the internal pressure of the oil pump rises above the set value. do. That is, the conventional relief valve is opened only when the engine is rotated at least 3000 RPM so that the internal pressure is 5.0 bar or more, so that the discharge pressure of the oil pump is kept constant.
  • RPM revolutions per minute
  • An object of the present invention is to provide an oil pump control valve capable of adjusting the pressure of oil discharged to an engine according to the number of revolutions of the engine as described above.
  • An oil pump control valve for achieving the above object includes a solenoid and a valve operated by the solenoid.
  • the valve is formed in a closed pipe shape (pipe) and the solenoid is coupled to the other end, and a port including a supply port, a control port, a discharge port sequentially disposed along the longitudinal direction of the holder,
  • a spool movably installed in the holder and having a first connection groove connecting the supply port and the control port and a second connection groove connecting the discharge port and the control port with an outer wall, and one end of the spool;
  • a first spring installed on the side to elastically support the spool, and a second spring interposed between the spool and the solenoid to elastically support the spool in a direction opposite to the first spring.
  • the solenoid may include a case coupled to the other end of the holder, a hollow bobbin installed inside the case, a coil wound around the outer wall of the bobbin, and a portion of the bobbin coupled to one end of the bobbin and inserted into the bobbin.
  • a core coupled to the other end of the bobbin and partially inserted into the bobbin and having a working space therein; a plunger movably installed in the working space; a rod coupled to the plunger and penetrating the core; It includes.
  • the solenoid operates at an engine speed lower than or equal to a set value to press the second spring toward the spool side, and stops operation above the set value to release pressurization of the spool.
  • the solenoid is operated or stopped according to the rotational speed of the engine to pressurize or depressurize the spool, wherein the spool is driven by the pressure of the oil supplied through the supply port and the elastic force of the second spring. Since the movement, the pressure of the oil discharged to the engine can be adjusted in multiple stages. That is, the fuel economy of the vehicle can be improved by separating the low rotation region and the high rotation region of the engine and controlling the discharge pressure of the oil pump differently.
  • FIG. 1 is a cross-sectional view of an oil pump control valve according to an embodiment of the present invention.
  • Figure 2 shows other embodiments of the holder of the oil pump control valve according to an embodiment of the present invention.
  • 3 to 5 is an operating state of the oil pump control valve according to an embodiment of the present invention.
  • valve 110 holder
  • first spring 150 second spring
  • port 162 supply port
  • control port 166 discharge port
  • an oil pump control valve includes a valve 100 for controlling a discharge pressure of an oil pump (not shown) and a solenoid 200 for operating the valve 100. It is composed of
  • the valve 100 includes a holder 110, a spool 120 movably installed inside the holder 110, a cap 130 coupled to an upper end of the spool 120, a spool 120 and a cap.
  • the first spring 140 is interposed between the 130 and the second spring 150 interposed between the spool 120 and the solenoid 200.
  • Holder 110 is a pipe shape having a predetermined length.
  • the inside of the holder 110 is hollow so that the spool can be installed to be movable.
  • a coupling groove 112 is formed inside the upper end of the holder 110, and a cap 130 that seals the upper end of the holder 110 is coupled to the coupling groove 112.
  • the holder 110 is provided with a plurality of ports 160 for supplying and discharging oil.
  • a supply port 162 is formed at a lower end of the holder 110, a control port 164 is positioned at a stop of the holder 110, and a discharge port 166 is provided at an upper end of the holder 110.
  • the supply port 162 is a port through which the oil of the oil pump is supplied, and the control port 164 is a port for temporarily discharging oil so as to maintain a constant internal pressure of the oil pump.
  • the discharge port 166 is a port for discharging oil discharged through the control port 164 to the outside of the oil pump.
  • control port 164, discharge port 166 is composed of a plurality of radially arranged along the outer peripheral surface of the holder (110).
  • the plurality of control ports 164 may include a first control port 164a and a second control port 164b having a larger diameter than the first control port 164a.
  • the plurality of discharge ports 166 may include a first discharge port 166a and a second discharge port 166b having a larger diameter than the first discharge port 166a.
  • the diameters of the first control port 164a and the first discharge port 166a are 3.0 mm
  • the diameters of the second control port 164b and the second discharge port 166b are: It can be manufactured to 3.4mm.
  • the diameters of the first control port 164a and the first discharge port 166a are 3.0 mm
  • the diameters of the second control port 164b and the second discharge port 166b are different.
  • the diameter is 3.4 mm, but the second control port 164b and the second discharge port 166b may have a long hole shape extending along the outer circumferential surface of the holder 110.
  • the spool 120 is pole shaped with a predetermined length.
  • a mounting groove 122 into which the lower end of the first spring 140 is inserted is formed at the upper end of the spool 120.
  • a first connection groove 124 connecting the supply port 162 and the control port 164 is formed on the lower outer circumferential surface of the spool 120.
  • a second connection groove 126 connecting the control port 164 and the discharge port 166 is formed on the outer circumferential surface of the spool 120.
  • the spool 120 having the above-described structure is raised or lowered by the operation of the solenoid 200, the elastic force of the first and second springs 140 and 150, and the pressure of the oil supplied through the supply port 162.
  • the first connection groove 124 connects the supply port 162 and the control port 164 when the spool 120 rises, and the second connection groove 126 controls the port 164 when the spool 120 descends. ) And the discharge port (166).
  • the cap 130 is a means for adjusting the elastic force of the first spring 140.
  • the cap 130 is screwed to the top of the holder (110).
  • the lower surface of the cap 130 is formed with a seating groove 132 is inserted into the top of the first spring 140.
  • a back pressure port 134 penetrating the cap 130 up and down is formed at the center of the cap 130.
  • the back pressure port 134 is for releasing the pressure generated in the seating groove 132 during the movement of the spool 120.
  • the first spring 140 and the second spring 150 are elastic means for elastically supporting the spool 120.
  • the first spring 140 and the second spring 150 are elastically positioned at upper and lower portions of the spool 120 to elastically support the spools 120 in a direction facing each other. do. That is, the first spring 140 elastically supports the spool 120 downward, and the second spring 150 elastically supports the spool 120 upward. At this time, the first spring 140 is manufactured to have a greater elastic force than the second spring 150.
  • the valve 100 further includes filters 172 and 174 for preventing foreign substances from entering and leaving together in the process of oil entering and leaving.
  • the filters 172 and 174 may include a first filter 172 surrounding the outer wall of the holder 110 having the supply port 162 and a second filter 174 surrounding the outer wall of the holder 110 having the control port 164. It consists of.
  • the solenoid 200 has a case 210, a bobbin 220 installed inside the case 210, a coil 230 wound around the outer circumferential surface of the bobbin 220, and upper and lower ends of the bobbin 220, respectively.
  • the case 210 is a pipe shape in which both top and bottom are open.
  • the upper end of the case 210 is caulked to surround the lower end of the holder 110.
  • the holder 110 is pressed toward the solenoid 200 to closely adhere the bobbin 220, the core 240, and the yoke 250 installed in the case 210. Therefore, it is possible to prevent the flow of the parts (220 to 250) installed in the case 210, it is possible to prevent the foreign matter flowing into the upper portion of the case (210).
  • the bobbin 220 has a hollow spool shape having flanges at the top and the bottom thereof.
  • the core 240 and the yoke 250 which are fixed iron cores, are respectively coupled to the upper and lower portions of the bobbin 220, and a coil 230 generating a magnetic field is wound around the outer circumferential surface thereof.
  • the bobbin 220 is made of an insulator so as to electrically disconnect between the coil 230 and the core 240, between the coil 230 and the yoke 250, and between the coil 230 and the plunger 260. .
  • the coil 230 is a conductive wire that generates a magnetic field around the bobbin 220 when a power is applied, and forms a cylindrical shape wound tightly and uniformly on the outer circumferential surface of the bobbin 220.
  • the magnetic field generated by the coil 230 when the power is applied is induced by the core 240 and the yoke 250 to raise the plunger 260.
  • the strength of the magnetic field is proportional to the strength of the current flowing along the coil 230 and the number of coils 230 wound on the bobbin 220. Therefore, since a strong magnetic field is generated as a strong current is applied to the coil 230 or the coil 230 is wound more, the movement of the plunger 260 can be reliably controlled.
  • the core 240 and the yoke 250 are fixed iron cores for moving the plunger 260 which is a movable iron core.
  • An operating space 252 is formed in the yoke 250 to allow the plunger 260 to be movable.
  • a guide 280 is installed between the core 240 and the yoke 250.
  • the guide 280 is a means for maintaining a constant distance between the core 240 and the yoke 250.
  • the plunger 260 is a movable iron core reciprocating by the magnetic field generated by the coil 230.
  • the plunger 260 has a cylindrical shape having a predetermined length and is movably installed in the operating space 252 of the yoke 250.
  • the plunger 260 is movably installed in the operating space 252 of the yoke 250 as described above.
  • the plunger 260 is preferably made of a material that can be easily moved by the magnetic field generated in the coil 230.
  • the rod 270 is rod-shaped with a predetermined length.
  • the rod 270 is coupled to penetrate the plunger 260 and reciprocates by the plunger 260 and supports the spool 120 upward when raised.
  • a mounting groove 272 on which the second spring 150 is seated is formed at an upper end of the rod 270.
  • a flow path 274 extending up and down is formed inside the rod 270, and a lower end of the flow path 274 opens into the yoke 250, that is, the working space 252.
  • a passage 276 connecting the flow path 272 and the inside of the core 240 is formed at an upper end of the rod 270.
  • the reason why the flow path 274 is formed inside the rod 270 is to minimize the operating resistance due to the fluid filled in the core 240 and the yoke 250 when the plunger 260 moves. This is to make it possible, through which it is possible to improve the operability of the solenoid 200.
  • the oil pump control valve controls the discharge pressure differently according to the engine speed (rpm) and the internal pressure of the oil pump (pressure P of oil supplied through the supply port 162). .
  • the valve 100 since the 'elastic force E1 of the first spring 140 ⁇ elastic force E2 + supply pressure P of the second spring 150', the valve 100 is opened. Therefore, the first connection groove 124 formed in the spool 120 is connected to the supply port 162 and the control port 164 so that the oil supplied through the supply port 162 is discharged to the control port 164.
  • FIG. 5 shows a state where the engine speed exceeds 3000 rpm (low rotation range) and the supply pressure P exceeds 5.00 bar.
  • the power applied to the solenoid 200 is cut off in the high rotation region in which the rotation speed of the engine exceeds 3000 rpm. As the power to the solenoid 200 is cut off, the plunger 260 and the rod 270 are lowered so as not to pressurize the second spring 150 any more.
  • the spool 120 may not be raised.
  • the supply pressure P exceeds 5.00 bar, even when the second spring 150 does not pressurize the spool 120, the supply pressure P is greater than the elastic force E2 of the second spring 150 only. Will have power.
  • the valve 100 since the 'elastic force E1 ⁇ supply pressure P of the first spring 140', the valve 100 is opened. Therefore, the first connection groove 124 formed in the spool 120 is connected to the supply port 162 and the control port 164 so that the oil supplied through the supply port 162 is discharged to the control port 164.
  • the oil discharged through the control port 164 flows into the control port 164 when the spool 120 descends, is transferred along the second connection groove 126, and then discharged through the discharge port 166 ( 3).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

La présente invention concerne une soupape de commande de pompe à huile permettant de commander la pression de l'huile refoulée vers un moteur en fonction des tours par minute effectués par ce dernier, la soupape de commande de pompe à huile comprenant un solénoïde et une soupape fonctionnant au moyen de celui-ci. La soupape comprend : un support, dont une extrémité adopte la forme d'un tuyau étanche, un solénoïde étant accouplé à son autre extrémité ; et un orifice d'alimentation, un orifice de commande et un orifice de refoulement ménagés sur le support. Le solénoïde comprend : un boîtier accouplé à l'autre extrémité du support ; une bobine creuse disposée à l'intérieur du boîtier ; une bobine enroulée sur la paroi extérieure de la bobine ; un noyau accouplé à une extrémité de la bobine et ayant une partie insérée à l'intérieur de la bobine ; une culasse accouplée à l'autre extrémité de la bobine et ayant une partie insérée à l'intérieur de la bobine, et présentant un espace de fonctionnement à l'intérieur ; un piston agencé mobile dans l'espace de fonctionnement ; et une tige accouplée au piston et pénétrant dans le noyau.
PCT/KR2015/010667 2014-10-08 2015-10-08 Soupape de commande de pompe à huile WO2016056859A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140135543A KR101559423B1 (ko) 2014-10-08 2014-10-08 오일펌프 컨트롤 밸브
KR10-2014-0135543 2014-10-08

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WO2016056859A1 true WO2016056859A1 (fr) 2016-04-14

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WO (1) WO2016056859A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101816015B1 (ko) 2016-10-10 2018-01-09 주식회사 유니크 오일펌프 컨트롤 밸브

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018092930A1 (fr) * 2016-11-16 2018-05-24 주식회사 유니크 Soupape de commande de pompe à huile
WO2018092931A1 (fr) * 2016-11-16 2018-05-24 주식회사 유니크 Système de commande de pompe à huile variable et soupape de commande de pompe à huile variable utilisée à cet effet
KR102241525B1 (ko) * 2020-02-18 2021-04-16 군산대학교산학협력단 무전력 위치 유지타입 솔레노이드 밸브 및 이의 제어 방법
KR102278311B1 (ko) * 2021-03-23 2021-07-16 삼보모터스주식회사 탄성 조절부를 구비한 연료전지용 솔레노이드 밸브 및 이를 포함하는 연료 공급장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110056811A (ko) * 2009-11-23 2011-05-31 현대자동차주식회사 차량의 오일펌프 구조
KR101160470B1 (ko) * 2012-05-14 2012-06-27 주식회사 유니크 솔레노이드 밸브
KR20140055707A (ko) * 2012-11-01 2014-05-09 현대자동차주식회사 오일 릴리프 밸브
KR20140066558A (ko) * 2012-11-23 2014-06-02 주식회사 유니크 솔레노이드 밸브
JP2014178028A (ja) * 2013-03-14 2014-09-25 Husco Automotive Holdings Llc 流体ポンプアウトレット圧調整のためのシステム及び方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110056811A (ko) * 2009-11-23 2011-05-31 현대자동차주식회사 차량의 오일펌프 구조
KR101160470B1 (ko) * 2012-05-14 2012-06-27 주식회사 유니크 솔레노이드 밸브
KR20140055707A (ko) * 2012-11-01 2014-05-09 현대자동차주식회사 오일 릴리프 밸브
KR20140066558A (ko) * 2012-11-23 2014-06-02 주식회사 유니크 솔레노이드 밸브
JP2014178028A (ja) * 2013-03-14 2014-09-25 Husco Automotive Holdings Llc 流体ポンプアウトレット圧調整のためのシステム及び方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101816015B1 (ko) 2016-10-10 2018-01-09 주식회사 유니크 오일펌프 컨트롤 밸브

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