KR20010005377A - Oil Drain Structure For Front Cam Shaft Seal Part Of Engine - Google Patents

Oil Drain Structure For Front Cam Shaft Seal Part Of Engine Download PDF

Info

Publication number
KR20010005377A
KR20010005377A KR1019990026197A KR19990026197A KR20010005377A KR 20010005377 A KR20010005377 A KR 20010005377A KR 1019990026197 A KR1019990026197 A KR 1019990026197A KR 19990026197 A KR19990026197 A KR 19990026197A KR 20010005377 A KR20010005377 A KR 20010005377A
Authority
KR
South Korea
Prior art keywords
oil
cam shaft
cylinder head
seal
engine
Prior art date
Application number
KR1019990026197A
Other languages
Korean (ko)
Other versions
KR100324904B1 (en
Inventor
노준헌
조정길
Original Assignee
정주호
대우자동차 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 정주호, 대우자동차 주식회사 filed Critical 정주호
Priority to KR1019990026197A priority Critical patent/KR100324904B1/en
Publication of KR20010005377A publication Critical patent/KR20010005377A/en
Application granted granted Critical
Publication of KR100324904B1 publication Critical patent/KR100324904B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/02—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package
    • B65H59/06—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package by devices acting on material leaving the package

Landscapes

  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

PURPOSE: An oil discharge structure is provided, in which an oil discharge hole is formed at the cam shaft cap, to thereby prevent the seal of cam shaft from being escaped while eliminating the occurrence of oil leak. CONSTITUTION: An oil passage hole(100a) is formed at a cylinder head(100) so as to feed oil to a journal unit(105a) of a cam shaft(105). The cam shaft having a seal(110) arranged at the front portion of the cam shaft is mounted to be rotatable to the cylinder head. A cam shaft cap(120) is bolt-coupled to the cylinder head so as to protect and support the cam shaft (105) when the cam shaft is mounted to the cylinder head. An oil pressure discharge hole(125) is formed at the cam shaft cap in such a manner that the hole is communicated to the seal and the inside of the cylinder head. The oil pressure discharge hole is formed to correspond to a return hole(100b) formed at the cylinder head so as to discharge the over-pressurized oil being delivered toward the seal of the cam shaft.

Description

엔진의 프론트 캠샤프트 시일부 오일배출구조{Oil Drain Structure For Front Cam Shaft Seal Part Of Engine}Oil Drain Structure For Front Cam Shaft Seal Part Of Engine

본 발명은 엔진의 프론트 캠샤프트 시일부 오일배출구조에 관한 것으로서, 보다 상세하게는 캠샤프트 프런트측의 저어널을 지지하는 캠샤프트 캡에 시일측으로 연통되는 오일배출홀을 형성하여 시일측에 유입된 오일을 배출시킴으로써 오일 압력의 과승과 이로 인한 누유를 방지한 엔진의 프론트 캠샤프트 시일부 오일배출구조에 관한 것이다.The present invention relates to an oil discharge structure of the front camshaft seal portion of the engine, and more particularly, an oil discharge hole communicating with the seal side is formed in the camshaft cap supporting the journal on the camshaft front side and flowed into the seal side. The present invention relates to an oil drainage structure of a front camshaft seal portion of an engine which prevents oil from escalating and thereby leaks.

잘 아는 바와 같이 자동차 엔진의 기관에는 실린더와 피스톤처럼 접동을 하는 부분이나 트랭크 샤프트 및 캠 샤프트와 같이 회전운동을 하는 부분이 있으며, 이러한 운동마찰 부분은 금속끼리 직접 접촉하면 마찰열이 발생하고 마찰면이 거칠어져 빨리 미모하거나 눌러 붙는 등의 고장이 발생하여 기관이 운전할 수 없게 된다.As is well known, the engine of an automobile engine has a sliding part such as a cylinder and a piston, or a rotating part such as a trunk shaft and a cam shaft, and these frictional parts generate frictional heat when the metal directly contacts each other. This causes roughness, such as fast look or sticking, and the engine cannot operate.

따라서, 이러한 것을 미연에 방지하기 위해 금속의 마찰면에 오일을 공급하면, 그 사이에 유막이 형성되어 고체마찰에 의한 오일의 유체마찰로 바뀌어 마찰저항이 적어짐에 따라 마모가 적고 마찰열의 온도 상승을 방지할 수 있다.Therefore, when oil is supplied to the friction surface of the metal in order to prevent this from happening, an oil film is formed therebetween, which changes to fluid friction of the oil by solid friction, resulting in less wear and less frictional heat as temperature decreases. You can prevent it.

이러한, 오일 공급은 첨부된 도면 도 1에 도시된 바와 같이 엔진(10)의 최하부에 구비되는 오일팬(11)에 저장되어 있는 오일(A)이 엔진구동시 오일펌프(12)에 의해 엔진(10)의 각 기관으로 압송되게 된다.This, the oil supply is the oil (A) stored in the oil pan 11 provided in the lowermost part of the engine 10 as shown in the accompanying drawings as shown in FIG. 10 will be sent to each institution.

이와 같이 압송된 오일(A)은 실린더블록(13)의 크랭크샤프트의 베어링(미도시)과 실린더내벽면(14)에 압송될 뿐 만아니라, 상기 실린더블록(13)에 형성된 오일통로홀(15)을 통해 실린더헤드(16)측으로 압송된다.The oil A thus conveyed is not only conveyed to the bearing (not shown) and the cylinder inner wall surface 14 of the crankshaft of the cylinder block 13, but also to the oil passage hole 15 formed in the cylinder block 13. It is pressurized to the cylinder head 16 side through).

상기 오일통로홀(15)을 통하여 실린더헤드(16)측으로 압송된 오일(A)은 첨부된 도면 도 2 내지 5에 도시된 바와 같이 시일(21)이 개재되어 실린더헤드(16)와 볼트(17)에 의해 결합되는 캠샤프트 캡(18)에 의해 회전가능하게 안착되는 캠샤프트(19)측으로 압송되어 실린더헤드(16)와의 각 접동부를 윤활하게 된다.The oil A pumped to the cylinder head 16 through the oil passage hole 15 has a seal 21 interposed therebetween, as shown in FIGS. 2 to 5, to attach the cylinder head 16 and the bolt 17. It is pressurized to the camshaft 19 side rotatably seated by the camshaft cap 18 coupled by) to lubricate each sliding portion with the cylinder head 16.

이때 상기 캠샤프트(19)의 저어널(20)부위로 오일(A)이 압송되어 캠샤프트 캡(18)의 내측면과 상기 캠샤프트(19) 저어널(20)부와의 접동부를 윤활하게 되고,상기 저어널(20)부의 윤활을 마친 오일은 시일(21)이 개재되어 있는 캠샤프트(19)의 프런트측으로 이송되어 실린더헤드(16)측에 형성된 리턴홀(22)을 통하여 오일팬(11)측으로 리턴하게 된다.At this time, oil (A) is pushed to the journal 20 of the camshaft 19 to lubricate the sliding portion between the inner surface of the camshaft cap 18 and the camshaft 19 journal 20. The lubricated oil of the journal 20 is transferred to the front side of the cam shaft 19 having the seal 21 interposed therebetween, and an oil pan through the return hole 22 formed at the cylinder head 16 side. It returns to (11) side.

상술한 바와 같이 오일(A)은 엔진(10) 구동과 함께 오일펌프(12)에 의해 오일팬(11)에서부터 실린더헤드(16) 상면에 안착되는 캠샤프트(19)까지 압송되어 엔진(10) 구동이 멈출때까지 계속적인 유입으로 윤활을 하게 된다.As described above, the oil A is pumped from the oil pan 11 to the cam shaft 19 seated on the upper surface of the cylinder head 16 by the oil pump 12 together with the engine 10. Lubricate with continuous inflow until the drive stops.

이로 인하여, 오일(A)이 엔진(10)의 각 기관을 반복 순환하는 동안 오일(A)은 온도와 함께 압력도 상승하게 된다.This causes the oil A to rise in pressure along with the temperature while the oil A repeatedly circulates through each engine of the engine 10.

이때, 캠샤프트(19)의 프런트측에 개재되어 있는 시일(21)측으로 과승된 압력을 갖는 오일(A)이 압송되면 실린더헤드(16)에 형성된 리턴홀(22)이 형성된 하단부측에 비해 캠샤프트 캡(18)의 내측면과 접압되는 상부측에는 과승된 오일압력이 작용하여 상기 시일(21)의 상부측을 압압시키기 된다. 따라서 상기 시일(21)의 상부측이 프런트측으로 빠지게 되고, 이로 인하여 시일(21)의 상부측으로 오일리크가 발생되는 문제점이 있었다.At this time, when oil (A) having a pressure which is elevated to the seal 21 side interposed on the front side of the cam shaft 19 is pressurized, the cam is compared with the lower end side where the return hole 22 formed in the cylinder head 16 is formed. An elevated oil pressure acts on the upper side of the shaft cap 18 in contact with the inner side to press the upper side of the seal 21. Therefore, the upper side of the seal 21 is pulled out to the front side, and thus there is a problem that oil leakage occurs in the upper side of the seal 21.

따라서, 본 발명은 상술한 문제점을 해소하기 위해 안출된 것으로서, 캠샤프트의 프런트측을 고정시키는 캠샤프트 캡에 오일 순환에 따른 과승된 오일 압력을 배출시킬 수 있는 홀을 형성하여 시일의 상부측이 빠지는 것을 방지하고 아울러, 시일의 상부측으로 오일리크가 발생되는 것을 방지할 수 있도록 한 엔진의 프론트 캠샤프트 시일부 오일배출구조를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in order to solve the above-described problems, the cam shaft cap for fixing the front side of the cam shaft to form a hole that can discharge the excess oil pressure due to the oil circulation to the upper side of the seal It is an object of the present invention to provide an oil discharge structure of the front camshaft seal portion of an engine that prevents the oil from falling out and prevents oil leakage from occurring on the upper side of the seal.

상술한 목적을 달성하기 위한 본 발명은 캠샤프트의 저어널부로 오일을 공급하기 위해 실린더헤드측에 오일통로홀이 형성되어 있고, 프런트측에는 시일이 개재되는 캠샤프트가 상기 실린더헤드에 회전가능하게 안착되며, 상기 캠샤프트가 실린더헤드에 안착될 시, 이를 보호지지하기 위해 실린더헤드와 볼트결합되어 구비되는 캠샤프트 캡에 있어서, 상기 시일측으로 압송되는 오일을 배출하기 위한 실린더헤드에 형성된 리턴홀과 대응하게 상기 캠샤프트 캡에 시일측과 실린더헤드 내측을 연통하는 오일 압력배출용 홀;을 형성한 것을 특징으로 한다.The present invention for achieving the above object is an oil passage hole is formed in the cylinder head side for supplying oil to the journal portion of the cam shaft, the cam shaft with the seal is interposed on the front side rotatably seated on the cylinder head When the cam shaft is seated on the cylinder head, the cam shaft cap is bolted to the cylinder head to support the protection of the cam shaft, and corresponds to the return hole formed in the cylinder head for discharging the oil pumped to the seal side And an oil pressure discharge hole communicating with the seal side and the cylinder head in the camshaft cap.

도 1은 종래의 전형적인 엔진의 오일공급 계통를 도시한 도면1 is a diagram illustrating an oil supply system of a conventional engine.

도 2는 종래의 전형적인 엔진의 실린더헤드를 나타낸 사시도Figure 2 is a perspective view showing a cylinder head of a conventional engine typical

도 3은 도 2의 측면도3 is a side view of FIG. 2

도 4는 도 2의 A-A'선에 따른 단면도4 is a cross-sectional view taken along line AA ′ of FIG. 2.

도 5는 도 3의 B-B'선에 따른 단면도5 is a cross-sectional view taken along line BB ′ of FIG. 3.

도 6은 본 발명에 따른 엔진의 프론트 캠샤프트 시일부 오일배출구조를 나타낸 측면도Figure 6 is a side view showing the oil discharge structure of the front cam shaft seal portion of the engine according to the invention

도 7은 본 발명에 따른 엔진의 프론트 캠샤프트 시일부 오일배출구조의 단면도로서, 도 4에 준한 도면7 is a cross-sectional view of the oil discharge structure of the front cam shaft seal portion of the engine according to the present invention, FIG.

도 8은 도 7의 C-C'선에 따른 단면도8 is a cross-sectional view taken along the line CC ′ of FIG. 7.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

100 : 실린더헤드 100a; 오일통로홀100: cylinder head 100a; Oil passage hole

100b : 리턴홀 105 : 캠샤프트100b: return hole 105: camshaft

105a : 저어널 110 : 시일105a: Journal 110: Seal

115 : 볼트 120 : 캠샤프트 캡115: Bolt 120: Camshaft Cap

125 : 오일 압력배출용 홀125: oil pressure discharge hole

이하, 첨부된 예시도면을 참조하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

첨부된 도면 도 6은 도 6은 본 발명에 따른 엔진의 프론트 캠샤프트 시일부 오일배출구조를 나타낸 측면도이고, 도 7은 본 발명에 따른 엔진의 프론트 캠샤프트 시일부 오일배출구조의 단면도로서, 도 4에 준한 도면이며, 도 8은 도 7의 C-C'선에 따른 단면도이다.6 is a side view showing an oil discharge structure of the front cam shaft seal portion of the engine according to the present invention, and FIG. 7 is a cross-sectional view of the oil discharge structure of the front cam shaft seal portion of the engine according to the present invention. 4 is a cross-sectional view taken along the line CC ′ of FIG. 7.

도시된 바와 같이 캠샤프트(105)의 저어널(105a)부로 오일을 공급하기 위해 실린더헤드(100)측에 오일통로홀(100a)이 형성되어 있고, 실린더헤드(100)와, 상기 실린더헤드(100)에 회전가능하게 안착되며, 프런트측에는 시일(110)이 개재되는 캠샤프트(105)가 구비되며, 상기 캠샤프트(105)가 실린더헤드(100)에 안착될 시, 이를 보호지지하기 위해 구비되는 캠샤프트 캡(120)에 상기 시일(110)측 오일을 배출하기 위한 실린더헤드(100)에 형성된 리턴홀(100b)과 대응하여 시일(110)측과 실린더헤드(100) 내측을 연통하는 오일 압력배출용 홀(125)이 형성된다.As illustrated, an oil passage hole 100a is formed at the cylinder head 100 side to supply oil to the journal 105a portion of the cam shaft 105, and the cylinder head 100 and the cylinder head ( Is rotatably seated on the 100, the front side is provided with a cam shaft 105, the seal 110 is interposed, provided when the cam shaft 105 is seated on the cylinder head 100, to protect it The oil communicates between the seal 110 side and the cylinder head 100 in correspondence with the return hole 100b formed in the cylinder head 100 for discharging the oil on the seal 110 side to the cam shaft cap 120. Pressure discharge hole 125 is formed.

이와 같이 형성된 오일 압력배출용 홀(125)이 형성된 캠샤프트 캡(120)을 실린더헤드(100) 상부측에 볼트(115) 고정시키게 되면, 도 6 내지 도 8에 도시된 바와 같이 엔진의 최하부에 구비되는 오일팬에 저장되어 있는 오일이 엔진구동시 오일펌프에 의해 실린더블록의 크랭크샤프트의 베어링과 실린더 내벽면에 압송될 뿐 만아니라, 상기 실린더블록에 형성된 오일통로홀을 통해 실린더헤드(100)측으로 압송된다.When the cam shaft cap 120 having the oil pressure discharge hole 125 formed as described above is fixed to the upper side of the cylinder head 100, the bolt 115 is fixed to the lowermost part of the engine as illustrated in FIGS. 6 to 8. The oil stored in the oil pan provided is not only pumped to the bearing of the crankshaft of the cylinder block and the inner wall of the cylinder by the oil pump when the engine is driven, but also the cylinder head 100 through the oil passage hole formed in the cylinder block. It is pushed to the side.

상기 실린더헤드(100)측으로 압송된 오일은 오일통로홀(100a)을 통하여 실린더헤드(100) 상면에 회전가능하게 안착되는 캠샤프트(105)의 저어널(105a)과, 상기 저어널(105a)에 개재되는 시일(110)측과, 상기 시일(110)의 상부측과 접지되어 실린더헤드(100)에 그 양단이 볼트(115)에 의해 고정되는 상기 캠샤프트 캡(120)의 내측면에 윤활을 하며, 윤활을 마친 오일은 실린더헤드(100)에 형성된 오일 리턴홀(100b)을 통하여 오일팬측으로 리턴하게 된다.The oil pressurized to the cylinder head 100 side is journal journal 105a of the cam shaft 105 rotatably seated on the upper surface of the cylinder head 100 through the oil passage hole 100a, and the journal 105a. Lubricates the inner surface of the camshaft cap 120 which is grounded at the seal 110 side and the upper side of the seal 110 and both ends thereof are fixed to the cylinder head 100 by bolts 115. The lubricated oil is returned to the oil pan side through the oil return hole 100b formed in the cylinder head 100.

이와 같이 오일은 엔진구동과 함께 오일펌프에 의해 오일팬에서부터 실린더헤드(100) 상면에 회동가능하게 안착되는 캠샤프트(105)까지 압송되어 엔진 구동이 멈춤될 때까지 계속적인 오일 유입으로 윤활을 하며, 이로 인하여 오일은 온도가 상승하게 되고, 오일의 압력도 상승하게 된다.In this way, the oil is pumped from the oil pan to the camshaft 105 which is rotatably seated on the upper surface of the cylinder head 100 by the oil pump together with the engine driving to lubricate with continuous oil inflow until the engine is stopped. This causes the oil to rise in temperature, increasing the pressure of the oil.

이때, 캠샤프트(105)의 프런트측에 개재되어 있는 시일(110)측으로 압력이 상승된 오일이 압송되어 윤활을 하게 되면 실린더헤드(100)에 형성된 리턴홀(100b)과 대응하여 상기 캠샤프트 캡(120)에 시일(110)측과 실린더헤드(100) 내측을 연통하는 오일 압력배출용 홀(125)을 통하여 상승된 오일압력이 배출되게 된다.At this time, when the oil whose pressure is increased to the seal 110 side interposed on the front side of the cam shaft 105 is lubricated and lubricated, the cam shaft cap corresponds to the return hole 100 b formed in the cylinder head 100. The elevated oil pressure is discharged through the oil pressure discharge hole 125 communicating the seal 110 side and the cylinder head 100 inside to the 120.

따라서, 상기 캠샤프트 캡(120)에 형성된 오일 압력배출용 홀(125)측으로 상승된 오일 압력을 배출시킴으로써 시일(110)의 상부측이 빠지는 것을 방지하고, 이로 인하여 상기 시일(110)의 상부측으로 발생되는 오일리크도 방지할 수 있다.Therefore, the upper side of the seal 110 is prevented from falling out by discharging the oil pressure raised toward the oil pressure discharge hole 125 formed in the camshaft cap 120, and thus to the upper side of the seal 110. Oil leaks can also be prevented.

상술한 바와 같이 구비된 오일 압력배출용 홀을 캠샤프트의 프런트에 구비되는 캠샤프트 캡에 형성함으로써, 오일의 계속적인 유입으로 인해 오일 압력이 과승될 경우 오일 압력배출용 홀측으로 배출됨으로써 시일의 빠짐과 오일리크도 방지할 수 있는 것이다.By forming the oil pressure discharge hole provided as described above in the camshaft cap provided at the front of the camshaft, when the oil pressure is increased due to the continuous inflow of oil, the seal is discharged to the oil pressure discharge hole side and the seal is released. And oil leaks can also be prevented.

Claims (1)

캠샤프트(105)의 저어널(105a)부로 오일을 공급하기 위해 실린더헤드(100)측에 오일통로홀(100a)이 형성되어 있고, 프런트측에는 시일(110)이 개재되는 캠샤프트(105)가 상기 실린더헤드(100)에 회전가능하게 안착되며, 상기 캠샤프트(105)가 실린더헤드(100)에 안착될 시, 이를 보호지지하기 위해 실린더헤드(100)와 볼트(115)결합되어 구비되는 캠샤프트 캡(120)에 있어서,An oil passage hole 100a is formed at the cylinder head 100 side to supply oil to the journal 105a portion of the cam shaft 105, and a cam shaft 105 having a seal 110 at the front side is provided. The cam is rotatably seated on the cylinder head 100, and when the cam shaft 105 is seated on the cylinder head 100, the cam is coupled to the cylinder head 100 and the bolts 115 so as to protect the cam shaft 105. In the shaft cap 120, 상기 시일(110)측으로 압송되는 오일을 배출하기 위한 실린더헤드(100)에 형성된 리턴홀(100b)과 대응하게 상기 캠샤프트 캡(120)에 시일(110)측과 실린더헤드(100) 내측을 연통하는 오일 압력배출용 홀(125);을 형성한 것을 특징으로 하는 엔진의 프론트 캠샤프트 시일부 오일배출구조.The seal 110 side and the cylinder head 100 communicate with the cam shaft cap 120 in correspondence with the return hole 100b formed in the cylinder head 100 for discharging oil pumped toward the seal 110. An oil discharge structure of the front cam shaft seal portion of the engine, characterized in that the oil pressure discharge hole 125 is formed.
KR1019990026197A 1999-06-30 1999-06-30 Oil Drain Structure For Front Cam Shaft Seal Part Of Engine KR100324904B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019990026197A KR100324904B1 (en) 1999-06-30 1999-06-30 Oil Drain Structure For Front Cam Shaft Seal Part Of Engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019990026197A KR100324904B1 (en) 1999-06-30 1999-06-30 Oil Drain Structure For Front Cam Shaft Seal Part Of Engine

Publications (2)

Publication Number Publication Date
KR20010005377A true KR20010005377A (en) 2001-01-15
KR100324904B1 KR100324904B1 (en) 2002-02-28

Family

ID=19598428

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019990026197A KR100324904B1 (en) 1999-06-30 1999-06-30 Oil Drain Structure For Front Cam Shaft Seal Part Of Engine

Country Status (1)

Country Link
KR (1) KR100324904B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030053908A (en) * 2001-12-24 2003-07-02 현대자동차주식회사 Oil drain apparatus of balance shaft assembly
KR100872640B1 (en) * 2006-11-14 2008-12-09 현대자동차주식회사 Oil supply structure for friction reduction of cam shaft

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6220652Y2 (en) * 1979-09-07 1987-05-26
JPS5968110U (en) * 1982-10-29 1984-05-09 スズキ株式会社 Camshaft lubrication system
JPH03225010A (en) * 1990-01-30 1991-10-04 Nissan Koki Kk Coupling part lubricating device for cam shaft driven type distributor
KR200171009Y1 (en) * 1997-12-31 2000-04-01 정몽규 Oil seal of camshaft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030053908A (en) * 2001-12-24 2003-07-02 현대자동차주식회사 Oil drain apparatus of balance shaft assembly
KR100872640B1 (en) * 2006-11-14 2008-12-09 현대자동차주식회사 Oil supply structure for friction reduction of cam shaft

Also Published As

Publication number Publication date
KR100324904B1 (en) 2002-02-28

Similar Documents

Publication Publication Date Title
US4637293A (en) Slant plate type hydraulic device
US3965880A (en) Automotive rear main bearings
KR970001953A (en) compressor
KR960038076A (en) A one-piece piston compressor
US5782161A (en) Axial plunger pump with a partition between the lubricating chamber and the working fluid chamber
KR100324904B1 (en) Oil Drain Structure For Front Cam Shaft Seal Part Of Engine
KR960041707A (en) Swash plate compressor
US5197869A (en) Rotary gear transfer pump having pressure balancing lubrication, bearing and mounting means
US6368071B1 (en) High pressure fuel pump
KR20030053428A (en) Lubrication structure of piston-type compressor
GB2337564A (en) Pump shaft seal
US4273518A (en) Swash-plate type compressor
US5865150A (en) Device for varying the valve timing of gas exchange valves of an internal combustion engine
US5199863A (en) Sealing of an eccentric bearing of a rotary piston internal combustion engine
JP4292539B2 (en) Compressor
KR20030000051A (en) Mechanical oil seal of crank shaft
KR100241367B1 (en) Filter fixing apparatus of engine oil
JPH0212310Y2 (en)
KR0126749Y1 (en) Flange lubricating device of rotary compressor
KR19990031465U (en) Piston chiller
JPH0552180A (en) Oil hydraulic pump/motor
JPH09144619A (en) Fuel injection pump of internal combusion engine
JP2000282828A (en) Seal part lubricating structure for engine
JP3524624B2 (en) Swash plate type axial piston pump and motor
US5692475A (en) Fuel injection pump for internal combustion engines

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: 20130129

Year of fee payment: 12

FPAY Annual fee payment

Payment date: 20140121

Year of fee payment: 13

FPAY Annual fee payment

Payment date: 20150120

Year of fee payment: 14

FPAY Annual fee payment

Payment date: 20160119

Year of fee payment: 15

FPAY Annual fee payment

Payment date: 20161220

Year of fee payment: 16

FPAY Annual fee payment

Payment date: 20171219

Year of fee payment: 17

FPAY Annual fee payment

Payment date: 20181218

Year of fee payment: 18

EXPY Expiration of term