CN100389284C - Machine oil pump of I.C. engine - Google Patents

Machine oil pump of I.C. engine Download PDF

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Publication number
CN100389284C
CN100389284C CNB2004100144606A CN200410014460A CN100389284C CN 100389284 C CN100389284 C CN 100389284C CN B2004100144606 A CNB2004100144606 A CN B2004100144606A CN 200410014460 A CN200410014460 A CN 200410014460A CN 100389284 C CN100389284 C CN 100389284C
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CN
China
Prior art keywords
pump
pump casing
oil
port plate
rotor
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.)
Expired - Lifetime
Application number
CNB2004100144606A
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Chinese (zh)
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CN1563780A (en
Inventor
陈杰余
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Dafeng District Productivity Promotion Center Yancheng City
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Individual
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Priority to CNB2004100144606A priority Critical patent/CN100389284C/en
Publication of CN1563780A publication Critical patent/CN1563780A/en
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Abstract

The present invention relates to an oil pump of an internal combustion engine. The previous patent application of an inside engaged cycloidal gear pump solves the problem of the severe oil leakage of an original oil pump, but a few screw bolt holes for installing the pump still have the phenomenon of oil leakage. The present invention is composed of a pump casing, an inner rotor, an outer rotor, a shaft and a port plate, wherein the inner rotor is positioned in the outer rotor and fixed to the shaft in the pump casing which is in the shape of an inwards concave disk, a positioning lug boss is arranged at the opening end of the pump casing, the port plate is fixedly embedded in the opening of the pump casing, and one end of the shaft is sheathed in the center hole of the port plate. Since an original port plate substituting for the positioning lug boss is changed into the pump casing in the present invention during the installation of the oil pump and a diesel engine, little oil leaking from an assembling seam between the port plate and the pump casing can fluently flow in the diesel engine without the block of a contact face formed by the pump casing, the body of the diesel engine and an outer ring of the bearing, and the phenomenon of oil leakage is completely avoided.

Description

A kind of engine oil pump of internal combustion engine
Affiliated technical field
The present invention relates to a kind of engine oil pump of internal combustion engine, particularly the engine oil pump of internal combustion engine that uses in the single cylinder diesel lubrication system.
Background technique
By my patent No. of application is a kind of interior engagement cycloid gear pump of ZL00216717.4, and it is improved to whole containment type structure with the structure of former oil pump split superposed type.In this structure, plane valving surface has just in time formed the positioning boss that oil pump is installed a little more than the pump case end face.The engagement cycloid gear pump has solved the serious problem of former oil pump leakage of oil in this, and the while output oil pressure is can regulate also.Yet in actual use, we find to still have the construction bolt hole of minority pump that the oil impregnate phenomenon is arranged.
Summary of the invention
The object of the present invention is to provide a kind of engine oil pump of internal combustion engine of stopping oil leakage phenomenon.
Mentality of designing of the present invention is the diameter that reduces thrust plate, positioning boss during with oil pump and internal-combustion engine installation changes pump case into by original thrust plate, the a small amount of oil that leaks out the assembling slit between thrust plate and pump case just is not subjected to the obstruct of the surface of contact of pump case and internal combustion (IC) engine airframe, bearing outer ring formation like this, enters in the internal-combustion engine and take advantage of a situation.According to above-mentioned mentality of designing, technical solution of the present invention is: a kind of engine oil pump of internal combustion engine, it is made up of pump case, internal rotor, external rotor, axle and thrust plate, the flank profil of inside and outside rotor is a cycloid, internal rotor is positioned at external rotor, and be fixed on the axle, certain throw of eccentric is arranged between the inside and outside rotor, and be contained in the pump case, pump case is the dish type of inner concavity, the opening end of pump case body has a boss that matches and locate with internal combustion (IC) engine airframe, and thrust plate embeds and also is fixed on the pump case opening, and an end of axle is enclosed within the thrust plate center hole.
The present invention is because the positioning boss during with the installation of oil pump and internal-combustion engine changes pump case into by original thrust plate, the a small amount of oil that leaks out the assembling slit between thrust plate and pump case just is not subjected to the obstruct of the surface of contact of pump case and internal combustion (IC) engine airframe, bearing outer ring formation like this, enter in the internal-combustion engine and take advantage of a situation, thoroughly stopped oil leakage phenomenon.
Description of drawings
Accompanying drawing is a sectional view of the present invention.
Among the figure: 1, pump case, 2, thrust plate, 3, internal rotor, 4, axle, 5, external rotor, 6, boss.
Embodiment
As figure, a kind of engine oil pump of internal combustion engine, it is by pump case (1), internal rotor (3), external rotor (5), axle (4) and thrust plate (2) are formed, in, external rotor (3,5) flank profil is a cycloid, internal rotor (3) is positioned at external rotor (5), and be fixed on the axle (4), in, external rotor (3, certain throw of eccentric is arranged 5), and be contained in the pump case (1), pump case (1) is the dish type of inner concavity, and the opening end of pump case (1) body has a positioning boss (6), and thrust plate (2) embeds and be fixed on pump case (1) opening, thrust plate (2) surface is a little less than boss (6) surface, and an end of axle (4) is enclosed within thrust plate (2) center hole.

Claims (1)

1. engine oil pump of internal combustion engine, it is made up of pump case, internal rotor, external rotor, axle and thrust plate, the flank profil of inside and outside rotor is a cycloid, and internal rotor is positioned at external rotor, and is fixed on the axle, certain throw of eccentric is arranged between the inside and outside rotor, and be contained in the pump case, pump case is the dish type of inner concavity, and thrust plate embeds and is fixed on the pump case opening, one end of axle is enclosed within the thrust plate center hole, it is characterized in that: the opening end of pump case body has a boss that matches and locate with internal combustion (IC) engine airframe.
CNB2004100144606A 2004-03-24 2004-03-24 Machine oil pump of I.C. engine Expired - Lifetime CN100389284C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2004100144606A CN100389284C (en) 2004-03-24 2004-03-24 Machine oil pump of I.C. engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2004100144606A CN100389284C (en) 2004-03-24 2004-03-24 Machine oil pump of I.C. engine

Publications (2)

Publication Number Publication Date
CN1563780A CN1563780A (en) 2005-01-12
CN100389284C true CN100389284C (en) 2008-05-21

Family

ID=34478379

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004100144606A Expired - Lifetime CN100389284C (en) 2004-03-24 2004-03-24 Machine oil pump of I.C. engine

Country Status (1)

Country Link
CN (1) CN100389284C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103759120B (en) * 2014-01-07 2016-07-06 陈锐志 A kind of lubricating oil pump with pressure limiting valve
CN104930159B (en) * 2015-07-08 2017-12-29 盐城市禾鼎机械股份有限公司 The oil pump driven gear and its surface treatment method of the high energy-conservation of high stable
CN105782689A (en) * 2016-02-29 2016-07-20 无锡南理工科技发展有限公司 Improved engine oil pump of internal combustion engine
JPWO2018131403A1 (en) * 2017-01-11 2019-11-07 パナソニックＩｐマネジメント株式会社 Electric oil pump
CN107606459A (en) * 2017-08-21 2018-01-19 王道红 A kind of big flow internal combustion engine lubricating oil pump
CN109139814A (en) * 2018-10-30 2019-01-04 广东技术师范学院 A kind of cycloidal-pin gear speed reducer

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827881A (en) * 1988-06-01 1989-05-09 Saturn Corporation Engine oil pump
JPH06200722A (en) * 1992-12-28 1994-07-19 Suzuki Motor Corp Oil pump for engine
JPH08135422A (en) * 1994-11-04 1996-05-28 Suzuki Motor Corp Oil relief structure of oil pump
JPH09210187A (en) * 1996-01-31 1997-08-12 Hino Motors Ltd Oil pump used in transmission
CN2396209Y (en) * 1999-12-03 2000-09-13 江苏机油泵厂 Inserted machine oil pump
CN2413061Y (en) * 2000-03-06 2001-01-03 陈杰余 Inside engaged cycloidal gear pump
CN1358927A (en) * 2000-12-11 2002-07-17 本田技研工业株式会社 Lubricant pump for internal combustion engine
CN2511854Y (en) * 2001-01-18 2002-09-18 浙江淳安泵业有限责任公司 Machine-oil pump
CN2680955Y (en) * 2004-03-26 2005-02-23 陈杰余 Lubricating pump of internal combustion engine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827881A (en) * 1988-06-01 1989-05-09 Saturn Corporation Engine oil pump
JPH06200722A (en) * 1992-12-28 1994-07-19 Suzuki Motor Corp Oil pump for engine
JPH08135422A (en) * 1994-11-04 1996-05-28 Suzuki Motor Corp Oil relief structure of oil pump
JPH09210187A (en) * 1996-01-31 1997-08-12 Hino Motors Ltd Oil pump used in transmission
CN2396209Y (en) * 1999-12-03 2000-09-13 江苏机油泵厂 Inserted machine oil pump
CN2413061Y (en) * 2000-03-06 2001-01-03 陈杰余 Inside engaged cycloidal gear pump
CN1358927A (en) * 2000-12-11 2002-07-17 本田技研工业株式会社 Lubricant pump for internal combustion engine
CN2511854Y (en) * 2001-01-18 2002-09-18 浙江淳安泵业有限责任公司 Machine-oil pump
CN2680955Y (en) * 2004-03-26 2005-02-23 陈杰余 Lubricating pump of internal combustion engine

Also Published As

Publication number Publication date
CN1563780A (en) 2005-01-12

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C06 Publication
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DD01 Delivery of document by public notice

Addressee: Chen Jieyu

Document name: Notification of the application for patent for invention to go through the substantive examination procedure

C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: JIANGSU ZHENLU TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: YANCHENG ZHENLU HIGH-TECH DEVELOPMENT CO., LTD.

CP03 Change of name, title or address

Address after: 224100 No. 1, Wuyi Road, Yancheng City hi tech Zone, Jiangsu, China

Patentee after: JIANGSU ZHENLU TECHNOLOGY CO.,LTD.

Address before: 224100 No. 19 Xing Xing Road, Dafeng City, Jiangsu Province

Patentee before: YANCHENG ZHENLU HIGH-TECH DEVELOPMENT Co.,Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20220124

Address after: 224100 No. 1 Wuyi Road, High-tech Zone, Dafeng District, Yancheng City, Jiangsu Province

Patentee after: Yancheng Guisheng Machinery Co.,Ltd.

Address before: 224100 No. 1, Wuyi Road, high tech Zone, Yancheng City, Jiangsu Province

Patentee before: JIANGSU ZHENLU TECHNOLOGY CO.,LTD.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20220905

Address after: 224100 6, Jinfeng South Street, Dafeng District, Yancheng City, Jiangsu.

Patentee after: Dafeng District Productivity Promotion Center, Yancheng City

Address before: 224100 No. 1 Wuyi Road, High-tech Zone, Dafeng District, Yancheng City, Jiangsu Province

Patentee before: Yancheng Guisheng Machinery Co.,Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20080521