KR19980060183A - Oil pump - Google Patents

Oil pump Download PDF

Info

Publication number
KR19980060183A
KR19980060183A KR1019960079535A KR19960079535A KR19980060183A KR 19980060183 A KR19980060183 A KR 19980060183A KR 1019960079535 A KR1019960079535 A KR 1019960079535A KR 19960079535 A KR19960079535 A KR 19960079535A KR 19980060183 A KR19980060183 A KR 19980060183A
Authority
KR
South Korea
Prior art keywords
gears
gear
oil pump
drive
housing
Prior art date
Application number
KR1019960079535A
Other languages
Korean (ko)
Other versions
KR100217082B1 (en
Inventor
이용준
Original Assignee
박병재
현대자동차 주식회사
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 박병재, 현대자동차 주식회사 filed Critical 박병재
Priority to KR1019960079535A priority Critical patent/KR100217082B1/en
Publication of KR19980060183A publication Critical patent/KR19980060183A/en
Application granted granted Critical
Publication of KR100217082B1 publication Critical patent/KR100217082B1/en

Links

Classifications

    • 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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • 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
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F04C15/0049—Equalization of pressure pulses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

흡입구(18)와 토출구(20)가 형성되는 하우징(10)과, 하우징(10)에 설치되고 구동축에 폭방향으로 겹쳐서 결합되는 복수의 기어(12), (14), (16)로 이루어지는 구동기어와, 하우징(10)에 자전하도록 설치되고 구동기어를 이루는 복수의 기어(12), (14), (16)와 각각 순차적으로 맞물리도록 폭방향으로 겹쳐서 종동축에 복수의 기어(13), (15), (17)가 조립되는 종동기어로 구성되는 오일펌프를 제공한다.A drive (10) formed with a suction port (18) and a discharge port (20), and a plurality of gears (12), (14), and (16) that are provided in the housing (10) and coupled to the drive shaft in a widthwise direction. A plurality of gears 13 on the driven shaft, overlapped in the width direction so as to sequentially engage with the gears and the plurality of gears 12, 14, and 16, which are installed to rotate in the housing 10 and constitute drive gears, respectively. Provided are oil pumps composed of driven gears to which (15) and (17) are assembled.

Description

오일펌프Oil pump

본 발명은 기어의 물림이 순차적으로 이루어지도록 복수의 기어를 조립하여 토출유량의 맥동현상을 감속시킨 오일펌프에 관한 것이다.상기와 같이 마찰부위에 작용하는 힘은 실린더의 팽창행정에서 얻은 힘에 대하여 모두가 저항으로 손실되는 힘이며, 또한 부품끼리의 마찰은 당연히 그 부품을 마모시켜 수명을 짧게 하고 자동차의 성능을 총합적으로 저하시키는 원인이 된다.The present invention relates to an oil pump in which a plurality of gears are assembled so that the gear bites are sequentially performed, thereby reducing the pulsation of the discharge flow rate. As described above, the force acting on the frictional portion is applied to the force obtained in the expansion stroke of the cylinder. All are forces lost by resistance, and friction between parts naturally causes wear of the parts, shortening the life and totally degrading the performance of the vehicle.

상기와 같이 구성되는 종래의 오일펌프에 있어서 외접기어 펌프는 도 5에 나타낸 바와 같이 구동기어(2)와 종동기어(4)가 서로 맞물리면서 오일의 공급을 행하므로 토출유량에 기어의 이에 따른 맥동현상 즉 토출이 단속적으로 이루어지는 현상이 발생한다는 문제가 있다.In the conventional oil pump configured as described above, the external gear pump performs oil supply while the driving gear 2 and the driven gear 4 mesh with each other as shown in FIG. That is, there exists a problem that the phenomenon which discharge is intermittently generate | occur | produces.

도 1은 본 발명에 따른 오일펌프의 일실시예에 있어서 기어결합 상태를 나타내는 정면도.1 is a front view showing a gear coupling state in one embodiment of the oil pump according to the present invention.

다음으로 본 발명에 따른 오일펌프의 가장 바람직한 실시예를 도면을 참조하여 상세하게 설명한다.나타내지 않음)에 폭방향으로 겹쳐서 결합되는 복수의 기어(12), (14), (16)로 이루어지는 구동기어와, 상기한 하우징(10)에 자전하도록 설치되고 상기한 구동기어를 이루는 복수의 기어(12), (14), (16)와 각각 순차적으로 맞물리도록 폭방향으로 겹쳐서 종동축(도면에 나타내지 않음)에 복수의 기어(13), (15), (17)가 조립되는 종동기어로 구성된다.Next, a preferred embodiment of the oil pump according to the present invention will be described in detail with reference to the drawings. A drive consisting of a plurality of gears 12, 14, and 16 coupled to overlap in the width direction with a not shown). The driven shaft is disposed so as to rotate in the housing 10, and overlaps with the plurality of gears 12, 14, and 16 which constitute the driving gears in order in order to sequentially engage with the gear 10, respectively. A plurality of gears (13), (15), (17) are assembled to follower gears.

상기한 구동축은 엔진에 사용될 경우에는 크랭크축 또는 캠축에 연결되어 회전하고, 변속기에 사용될 경우에는 토오크 변환기의 펌프 또는 출력축에 연결되어 회전하도록 설치된다.The drive shaft is connected to the crankshaft or camshaft when used in the engine and rotates, and when used in the transmission is connected to the pump or output shaft of the torque converter to rotate.

상기한 구동기어와 종동기어를 구성하는 각각 기어를 순차적으로 맞물리도록 조립할 때에는 원주피치를 기어의 수만큼 균등분할하여 그만큼 서로 어긋나도록 한다.When assembling each of the gears constituting the drive gear and the driven gear sequentially to be engaged, the circumferential pitch is equally divided by the number of gears so as to deviate from each other.

즉 기어의 수를 3개로 한 경우에는 제1구동기어(12)와 제1종동기어(13)가 먼저 맞물리고, 원주피치를 3으로 나눈 만큼의 간격을 두고 제2구동기어(14)와 제2종 동기어(15)가 맞물리며, 다시 원주피치를 3으로 나눈 만큼의 간격을 두고 제3구동기어(16)와 제3종동기어(17)가 순차적으로 맞물리도록 구동기어와 종동기어를 조립한다.In other words, when the number of gears is three, the first driving gear 12 and the first driven gear 13 mesh first, and then the second driving gear 14 and the first driving gear are spaced at a distance equal to the circumferential pitch divided by three. Assemble the driving gear and the driven gear so that the second synchronous gear 15 meshes with each other and the third driving gear 16 and the third driven gear 17 are sequentially engaged at intervals equal to the circumferential pitch divided by three. .

다음으로 상기와 같이 구성된 본 고안에 따른 오일펌프의 작동에 대하여 설명한다.Next will be described the operation of the oil pump according to the present invention configured as described above.

먼저 상기한 구동축이 엔진의 크랭크축 또는 캠축이나 변속기의 토오크변환기 펌프 또는 출력축에 의하여 회전하고 상기한 유입구(18)를 통하여 오일이 흡입되면, 흡입된 오일은 구동기어와 종동기어에 의하여 흡입되어 토출구(20)를 통하여 토출된다.First, when the drive shaft is rotated by the crank shaft of the engine or the torque converter pump or the output shaft of the cam shaft or transmission and the oil is sucked through the inlet 18, the sucked oil is sucked by the drive gear and the driven gear to discharge the outlet It is discharged through 20.

상기에서 구동기어와 종동기어가 각각 3개의 기어로 이루어지고 원주피치를 3으로 나눈 만큼 어긋나서 조립되므로 3개의 기어가 맞물리어 회전하면서 토출되는 유량의 파동이 서로 위상 차를 가지고 발생하고, 맥동현상이 현저하게 감소한다.Since the drive gear and the driven gear are each composed of three gears and are assembled by shifting the circumferential pitch by three, the wave of the flow rate discharged while the three gears rotate together is generated with a phase difference from each other. This is significantly reduced.

또 본 발명에 따른 오일펌프의 다른 실시예는 도 3~도 4에 나타낸 바와 같이, 흡입구(18)와 토출구(20)가 형성되는 하우징(10)과, 상기한 하우징(10)에 설치되고 구동축(26)에 폭방향으로 겹쳐서 결합되는 복수의 기어(12), (14), (16)로 이루어지는 구동기어와, 상기한 하우징(10)에 자전하도록 설치되고 상기한 구동기어를 이루는 복수의 기어(12), (14), (16)와 각각 순차적으로 맞물리도록 폭방향으로 겹쳐서 종동축(28)에 복수의 기어(13), (15), (17)가 조립되는 종동기어와, 상기한 기어 사이에 설치하여 서로 독립적인 유량을 형성하도록 분리하는 분리판(22), (24)로 구성된다.In addition, another embodiment of the oil pump according to the present invention, as shown in Figures 3 to 4, the housing 10 is formed with the suction port 18 and the discharge port 20, and the drive shaft is installed in the housing 10 Drive gears consisting of a plurality of gears 12, 14, and 16 coupled to overlap in the width direction to 26, and a plurality of gears provided to rotate in the housing 10 and forming the drive gears described above. Driven gears in which a plurality of gears 13, 15, and 17 are assembled to the driven shaft 28 so as to be sequentially engaged with the 12, 14, and 16, respectively, in the width direction; It is composed of separation plates 22 and 24 provided between the gears and separated to form independent flow rates.

상기한 분리판(22), (24)는 기어의 이끝원과 같은 지름으로 형성하는 것이 바람직하다.The separation plates 22 and 24 described above are preferably formed to have the same diameter as the tooth circle of the gear.

상기와 같이 구성되는 본 발명에 따른 오일펌프의 다른 실시예에 의하면, 3개의 기어가 각각 별도의 독립적인 유량을 형성하기 때문에 상기한 일실시예에 비하여 체적효율이 향상된다.According to another embodiment of the oil pump according to the present invention configured as described above, the volumetric efficiency is improved compared to the above embodiment because the three gears each form a separate independent flow rate.

즉 상기한 일실시예에 있어서는 제1구동기어 (12)와 제2구동기어(14) 및 제2구동기어(14)와 제3구동기어(16)가 서로 원주피치/3만큼 어긋나 있으므로 이동되는 유량이 옆쪽의 기어로도 이동하지만, 본 다른 실시예에 있어서는 옆쪽의 기어로 이동되지 않고 각각 독립적인 유량을 형성하므로 체적효율이 향상된다.That is, in the above-described embodiment, the first driving gear 12, the second driving gear 14, and the second driving gear 14 and the third driving gear 16 are shifted from each other by a circumferential pitch / 3. Although the flow rate also moves to the side gear, in this embodiment, the volumetric efficiency is improved because each flow rate is formed independently without moving to the side gear.

상기와 같이 구성되고 작동되는 본 발명 오일펌프에 의하면, 토출되는 유량에 발생하는 맥동현상이 감소하므로 자동변속기에 사용되는 경우 제어압이 안정되고 밸브보디의 레귤레이팅능력이 향상된다.According to the oil pump of the present invention configured and operated as described above, since the pulsation phenomenon generated in the discharged flow rate is reduced, the control pressure is stabilized when the automatic transmission is used, and the regulating capacity of the valve body is improved.

Claims (4)

흡입구와 토출구가 형성되는 하우징과, 상기한 하우징에 설치되고 구동축에 폭방향으로 겹쳐서 결합되는 복수의 기어로 이루어지는 구동기어와, 상기한 하우징에 자전하도록 설치되고 상기한 구동기어를 이루는 복수의 기어와 각각 순차적으로 맞물리도록 폭방향으로 겹쳐서 종동축에 조립되는 복수의 기어로 이루어지는 종동기어를 포함하는 오일펌프.A drive gear comprising a housing formed with a suction port and a discharge port, a plurality of gears installed in the housing and coupled to the drive shaft in a width direction, and a plurality of gears installed to rotate in the housing and forming the drive gear; An oil pump comprising a driven gear composed of a plurality of gears assembled in a driven shaft so as to sequentially engage with each other in the width direction. 제1항에 있어서, 상기한 구동기어와 종동기어를 구성하는 각각의 기어를 순차적으로 맞물리도록 조립할 때에는 원주피치를 기어의 수만큼 균등분할하여 그만큼 서로 어긋나도록 조립하는 오일펌프.The oil pump according to claim 1, wherein when assembling the gears constituting the drive gear and the driven gear in such a manner as to be engaged with each other, the circumferential pitch is equally divided by the number of gears and assembled so as to deviate from each other. 제1항에 있어서, 상기한 구동기어와 종동기어를 이루는 복수의 기어 사이에 서로 독립적인 유량을 형성하도록 분리하는 분리판을 설치하는 오일펌프.The oil pump according to claim 1, wherein a separation plate is provided to separate the drive gear and the plurality of gears forming the driven gear so as to form independent flow rates. 제3항에 있어서, 상기한 분리판은 기어의 이끝원과 같은 지름으로 형성하는 오일펌프.4. The oil pump of claim 3, wherein the separating plate is formed to have the same diameter as the end of the gear.
KR1019960079535A 1996-12-31 1996-12-31 Oil pump KR100217082B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960079535A KR100217082B1 (en) 1996-12-31 1996-12-31 Oil pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960079535A KR100217082B1 (en) 1996-12-31 1996-12-31 Oil pump

Publications (2)

Publication Number Publication Date
KR19980060183A true KR19980060183A (en) 1998-10-07
KR100217082B1 KR100217082B1 (en) 1999-09-01

Family

ID=19493192

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960079535A KR100217082B1 (en) 1996-12-31 1996-12-31 Oil pump

Country Status (1)

Country Link
KR (1) KR100217082B1 (en)

Also Published As

Publication number Publication date
KR100217082B1 (en) 1999-09-01

Similar Documents

Publication Publication Date Title
US7479000B2 (en) Gear pump
US5390585A (en) Rotary motion/constant velocity linear reciprocating motion conversion device and hydraulic system using the same
CN1183327C (en) Pulse-width modulation of compressor
CA2159672C (en) A valve train with suction-controlled ring gear/internal gear pump
RU2184874C2 (en) Two-cylinder vane pump
JP2006161616A (en) Tandem type trochoid pump and method of assembling same
US3547565A (en) Rotary device
KR19980060183A (en) Oil pump
US20040234393A1 (en) Oil pump structure
US20050249622A1 (en) Device for controlling parasitic losses in a fluid pump
US20020037227A1 (en) Oil pump apparatus
US6637313B1 (en) Rotary pump
EP0555374A1 (en) Two speed gerotor motor with centrally located valve and commutator
GB2102074A (en) Positive-displacement fluid-machines
US3456559A (en) Rotary device
GB2092231A (en) Rotary-piston fluid-machine with delivery-valve assembly
KR200212882Y1 (en) Gear structure of oil pump
CN218000207U (en) Hydraulic pump type clutch
CN218509707U (en) Improved gear in oil pump for automobile
JP2006170147A (en) Oil pump
KR0139051Y1 (en) Cover of internal gear pump
RU1807238C (en) Gear pump
US5334002A (en) Gerotor pump with shiftable rotor boss
JPH0681775A (en) Variable displacement pump
RU2229625C2 (en) Rotor-piston pump

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20020604

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee