CN101196188A - Hydraulic pump of automatic transmission - Google Patents

Hydraulic pump of automatic transmission Download PDF

Info

Publication number
CN101196188A
CN101196188A CNA2007100069914A CN200710006991A CN101196188A CN 101196188 A CN101196188 A CN 101196188A CN A2007100069914 A CNA2007100069914 A CN A2007100069914A CN 200710006991 A CN200710006991 A CN 200710006991A CN 101196188 A CN101196188 A CN 101196188A
Authority
CN
China
Prior art keywords
pump
oil
automatic transmission
lining
pump case
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.)
Granted
Application number
CNA2007100069914A
Other languages
Chinese (zh)
Other versions
CN101196188B (en
Inventor
姜雄锡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hyundai Motor Co
Original Assignee
Hyundai Motor Co
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 Hyundai Motor Co filed Critical Hyundai Motor Co
Publication of CN101196188A publication Critical patent/CN101196188A/en
Application granted granted Critical
Publication of CN101196188B publication Critical patent/CN101196188B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • 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
    • 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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C27/009—Shaft sealings specially adapted for pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control

Abstract

The invention relates to a hydraulic pump of an automatic transmission which prevents bubbles from generating as the rest oils from the outlet are discharged to the lower part of the automatic transmission having no rotating element internally and then mixed. The invention includes: a pump housing; a pump cover attached to the pump housing; a bush attached to the pump housing; a rotor mounted arranged between the pump cover and the pump housing; wherein, an oil input, an oil output port, and a substantially vertical drain hydraulic line are arranged between the pump housing and the pump cover.

Description

The oil hydraulic pump of automatic transmission
The application requires preference and the rights and interests at the korean patent application No.10-2006-0123320 of Korea S Department of Intellectual Property application on December 6th, 2006, and the full content of above-mentioned application is incorporated into this with for referencial use.
Technical field
The present invention relates to the oil hydraulic pump of automatic transmission.More particularly, the present invention relates to a kind of like this oil hydraulic pump of automatic transmission, it prevents to generate bubble because the surplus oil of discharging by tap hole is discharged into the stirring that the bottom that do not have the automatic transmission of rotatable member in it causes.
Background technique
Oil hydraulic pump is installed between torque-converters and the gearbox.Oil hydraulic pump receives the output torque of motor by torque-converters.Oil hydraulic pump is to speed changer and switch unit supply oil and generation gear shift pressure.In addition, the oil of oil hydraulic pump provides the lubricated and cooling of speed changer.The oil of oil hydraulic pump is supplied to the line pressure control valve, and oil pressure and time increase pro rata up to oil pressure and arrives predetermined pressure.When oil pressure arrived predetermined pressure, oil turned back to oil hydraulic pump by the exhaust port of line pressure control valve.
With reference to figure 1 in detail, the conventional hydraulic pumps of automatic transmission will be described.
As shown in fig. 1, the conventional hydraulic pumps 20 of automatic transmission is arranged between torque-converters 10 and the switch unit 30.Switch unit 30 comprises the planetary gear set (not shown), break B and clutch C.In addition, main shaft 40 is installed in the automatic transmission, and torque-converters 10 is delivered to main shaft 40 with engine torque.
The conventional hydraulic pumps 20 of automatic transmission comprises pump case 45, pump cover 55, lining 50 and rotor.
Pump cover 55 and pump case 45 combinations, and lining 50 is press fit into pump case 45.
Rotor is installed between pump cover 55 and the pump case 45.Rotor comprises internal rotor 70 and is installed in the external rotor 65 of the outside of internal rotor 70.
In addition, seal element 60 inserts between pump case 45 and the lining 50.Be not supplied to the surplus oil of valve body to be retained in attachment portion between lining 50 and the seal element 60.
In addition, tap hole 75 is formed between pump case 45 and the pump cover 55.Tap hole 75 is connected to the attachment portion of lining 50 and seal element 60, and discharges surplus oil.
According to the oil hydraulic pump 20 of automatic transmission, as shown in Figure 2, the surplus oil that is retained in the attachment portion of lining 50 and seal element 60 is discharged into clutch C by tap hole 75, flows to the bottom of speed changer then.So oil is stirred by the rotation of clutch C, therefore, generates bubble in oil.The generation of bubble has reduced oil quality.
Disclosed above information only is used to strengthen the understanding to background of the present invention in this background parts, so it may comprise the information that does not form this state those of ordinary skills known systems.
Summary of the invention
The present invention is devoted to provide a kind of oil hydraulic pump of automatic transmission, and its advantage that has is to prevent to be discharged into by the surplus oil that tap hole is discharged and does not exist the bottom of the automatic transmission of rotatable member to generate bubble in it.
Oil hydraulic pump according to the automatic transmission of exemplary embodiment of the present invention can comprise: pump case; Pump cover with the pump case combination; Be press fit into the lining of pump case; And be installed in rotor between pump cover and the pump case, and wherein oily input port, oily output port, and the hydraulic pressure discharge pipe is formed between pump case and the pump cover, and the hydraulic pressure discharge pipe forms downwards.
The hydraulic pressure discharge pipe can be connected to fuel tank.
Seal element can be inserted between pump case and the lining, and surplus oil can be retained in the attachment portion of seal element and lining.
The hydraulic pressure discharge pipe can be connected to the attachment portion of seal element and lining by the tap hole of pump case.
Description of drawings
Fig. 1 shows the viewgraph of cross-section that is installed in the conventional hydraulic pumps in the automatic transmission.
Fig. 2 is the part enlarged view of Fig. 1.
Fig. 3 is the decomposition assembled view according to the oil hydraulic pump of the automatic transmission of exemplary embodiment of the present invention.
Fig. 4 is the perspective view according to the pump cover of exemplary embodiment of the present invention.
Fig. 5 shows that oil hydraulic pump according to exemplary embodiment of the present invention is installed in the viewgraph of cross-section in the automatic transmission.
Fig. 6 is the part enlarged view of Fig. 5.
Embodiment
Specifically describe exemplary embodiment of the present invention below with reference to the accompanying drawings.
As shown in Figure 5, the oil hydraulic pump 100 according to the automatic transmission of exemplary embodiment of the present invention is arranged between torque-converters 300 and the switch unit 200.In addition, main shaft 310 is installed in the automatic transmission.In addition, fuel tank 250 is formed at the bottom of automatic transmission, and rotatable member is not present near the fuel tank 250.
Torque-converters 300 receives from the torque of motor (not shown) and with transmission of torque and arrives main shaft 310.In addition, oil hydraulic pump 100 and switch unit 200 are by the torque operation of main shaft 310.
Switch unit 200 comprises at least one planetary gear set (not shown), break B and clutch C.
As shown in Figure 3, the automatic transmission oil hydraulic pump 100 according to exemplary embodiment of the present invention comprises pump case 110, pump cover 120, lining 150 and rotor 170.
Pump cover 120 bolts are connected to pump case 110.
Lining 150 is press fit into pump case 110.Lining 150 reduces the frictional force between rotor 170 and the pump cover 120.
Rotor 170 is installed between pump cover 120 and the pump case 110.Rotor 170 comprises internal rotor 140 and is installed in the external rotor 130 of the outside of internal rotor 140.Rotor 170 pressurizes and discharges oil owing to rotating with main shaft 310.
In addition, seal element 160 is inserted between pump case 110 and the lining 150.Seal element 160 prevents the oil leakage of oil hydraulic pump 100.Be not supplied to the surplus oil of valve body to be retained in the attachment portion of lining 150 and seal element 160.
In addition, as shown in Figure 4, oily input port 210, oily output port 220, tap hole 230 and hydraulic pressure discharge pipe 240 are formed between pump case 110 and the pump cover 120.
Oil is supplied by oily input port 210 from oil fan (not shown).
Oil by oil hydraulic pump 100 pressurizations is discharged into the valve body (not shown) by oily output port 220.
Tap hole 230 is connected to the attachment portion of lining 150 and seal element 160.So the surplus oil that is retained in the attachment portion of lining 150 and seal element 160 is discharged by tap hole 230.
In addition, tap hole 230 is connected to hydraulic pressure discharge pipe 240.
As shown in Fig. 5 and Fig. 6, hydraulic pressure discharge pipe 240 forms downwards.Hydraulic pressure discharge pipe 240 is connected to the fuel tank 250 of the bottom that is formed at automatic transmission.
That is to say that the surplus oil when the attachment portion that is retained in lining 150 and seal element 160 is discharged to after the hydraulic pressure discharge pipe 240 by tap hole 230, surplus oil is discharged into the fuel tank 250 that does not have rotatable member in it by hydraulic pressure discharge pipe 240.So, can in oil, not generate bubble owing to stirring.
The oil that is discharged into fuel tank 250 is filtered and is fed to oil hydraulic pump 100 by oily input port 210.
According to the present invention, the surplus oil of discharging by tap hole is discharged into the fuel tank that does not have rotatable member in it by the hydraulic pressure discharge pipe.So oil can not stirred and bubble can not generate in oil.In addition, can keep oil quality.
Although think that in conjunction with current feasible exemplary embodiment described this invention, should be understood that the present invention is not limited to disclosed mode of execution, but opposite, be intended to cover various modifications and equivalent arrangements in the spirit and scope that are included in additional claim.

Claims (4)

1. the oil hydraulic pump of an automatic transmission, it comprises:
Pump case;
Pump cover with the pump case combination;
Be press fit into the lining of pump case; With
Be installed in the rotor between pump cover and the pump case,
Wherein oily input port, oily output port and hydraulic pressure discharge pipe are formed between pump case and the pump cover, and the hydraulic pressure discharge pipe forms downwards.
2. oil hydraulic pump according to claim 1, wherein the hydraulic pressure discharge pipe is connected to fuel tank.
3. oil hydraulic pump according to claim 2, wherein seal element is inserted between pump case and the lining, and surplus oil is retained in the attachment portion of seal element and lining.
4. oil hydraulic pump according to claim 3, wherein the hydraulic pressure discharge pipe is connected to the attachment portion of seal element and lining by the tap hole of pump case.
CN2007100069914A 2006-12-06 2007-01-31 Hydraulic pump of automatic transmission Active CN101196188B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020060123320 2006-12-06
KR1020060123320A KR100892695B1 (en) 2006-12-06 2006-12-06 Oil pump of automatic transmission
KR10-2006-0123320 2006-12-06

Publications (2)

Publication Number Publication Date
CN101196188A true CN101196188A (en) 2008-06-11
CN101196188B CN101196188B (en) 2011-08-31

Family

ID=39498257

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2007100069914A Active CN101196188B (en) 2006-12-06 2007-01-31 Hydraulic pump of automatic transmission

Country Status (4)

Country Link
US (1) US20080138220A1 (en)
JP (1) JP2008144956A (en)
KR (1) KR100892695B1 (en)
CN (1) CN101196188B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102486230A (en) * 2010-12-03 2012-06-06 现代自动车株式会社 Oil pump system for automatic transmission

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5157592B2 (en) 2008-03-31 2013-03-06 アイシン・エィ・ダブリュ株式会社 Torque converter drain structure
KR101405188B1 (en) * 2012-10-05 2014-06-10 현대자동차 주식회사 Drain system for torque converter
CN103195702A (en) * 2013-04-19 2013-07-10 湖南机油泵股份有限公司 Shock absorption type automobile gearbox oil pump
KR101707527B1 (en) 2016-05-26 2017-02-16 주식회사 신도하이텍 Manufacturing method of reaction shaft of transmission oil pump and manufactured reaction shaft thereby
KR102003803B1 (en) * 2018-04-25 2019-07-25 명화공업주식회사 Oil pump

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE24064E (en) * 1955-09-20 Rotary pump and motor hydraulic
US3083588A (en) * 1958-03-12 1963-04-02 Gen Motors Corp Automatic transmission
JPH0547321Y2 (en) * 1988-07-18 1993-12-13
JP3084103B2 (en) * 1991-09-20 2000-09-04 ジヤトコ・トランステクノロジー株式会社 Automatic transmission hydraulic circuit
JPH08121567A (en) * 1994-10-20 1996-05-14 Jatco Corp Oil pump structure
JPH10213208A (en) * 1997-01-27 1998-08-11 Jatco Corp Vehicular automatic transmission
CN1200448A (en) * 1997-05-22 1998-12-02 欧阳抗美 Electronic automatically speed changing oil pump
JP3606775B2 (en) 1999-10-19 2005-01-05 ジヤトコ株式会社 Oil path structure of oil pump cover
US6386836B1 (en) * 2000-01-20 2002-05-14 Eagle-Picher Industries, Inc. Dual gerotor pump for use with automatic transmission
JP2002054728A (en) * 2000-08-09 2002-02-20 Honda Motor Co Ltd Oil passage structure of transmission
JP2003014090A (en) * 2001-06-28 2003-01-15 Fuji Heavy Ind Ltd Oil separating structure for automatic transmission
KR20040090263A (en) * 2003-04-17 2004-10-22 현대자동차주식회사 housing structure for oil pump
JP4525225B2 (en) 2004-07-26 2010-08-18 アイシン・エィ・ダブリュ株式会社 Oil transmission prevention device for automatic transmission torque converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102486230A (en) * 2010-12-03 2012-06-06 现代自动车株式会社 Oil pump system for automatic transmission
CN102486230B (en) * 2010-12-03 2016-01-27 现代自动车株式会社 For the hydraulic pump system of automatic transmission

Also Published As

Publication number Publication date
US20080138220A1 (en) 2008-06-12
CN101196188B (en) 2011-08-31
KR20080051732A (en) 2008-06-11
JP2008144956A (en) 2008-06-26
KR100892695B1 (en) 2009-04-15

Similar Documents

Publication Publication Date Title
CN101196188B (en) Hydraulic pump of automatic transmission
US8042331B2 (en) On-demand hydraulic pump for a transmission and method of operation
CN104685250B (en) The lubricating structure of the friction connection element of automatic transmission
CN105221712A (en) For the oil pump of automatic transmission
CN102094954B (en) Clutch apparatus
US8956133B2 (en) Vehicular internal gear type oil pump
US7431006B2 (en) System and method for lubricating power transmitting elements
JP2009127794A (en) Automatic transmission
CN1978950B (en) Lubricating oil line for automatic transmission
CN101649778B (en) Powertrain with engine oil-fed torque converter
KR20070018939A (en) Hydraulic drive for mobile vehicles
US6546830B2 (en) Transmission device of four-wheel drive vehicle
CA2444073C (en) Structure for receiving and delivering oil
JP3602413B2 (en) Lubricators for tractor missions
CN101868654B (en) Drain structure for torque converter
JP5273009B2 (en) Vehicle oil passage coupling device
CN117377840A (en) Lubricant supply system for power plant of electric vehicle
JP2000289480A (en) Composite power taking-out unit and hydraulic control system
JP2015090213A (en) Pump spline lubrication structure
JP2010236595A (en) Lubricating structure for transmission
JP2008133902A (en) Oil suction performance improving type strainer structure for driving system for vehicle
JP4517807B2 (en) Powertrain lubricator
KR100747872B1 (en) Oil pump of an auto transmission
JP2006275136A (en) Lubricating structure of transmission
JP2004324853A (en) Lubricating device for transmission for vehicle

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant