JPH03179177A - Oil pump device - Google Patents

Oil pump device

Info

Publication number
JPH03179177A
JPH03179177A JP31544189A JP31544189A JPH03179177A JP H03179177 A JPH03179177 A JP H03179177A JP 31544189 A JP31544189 A JP 31544189A JP 31544189 A JP31544189 A JP 31544189A JP H03179177 A JPH03179177 A JP H03179177A
Authority
JP
Japan
Prior art keywords
passage
engine
lubricating
pump
oil
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.)
Pending
Application number
JP31544189A
Other languages
Japanese (ja)
Inventor
Takemi Manita
Original Assignee
Saitama Kiki Kk
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 Saitama Kiki Kk filed Critical Saitama Kiki Kk
Priority to JP31544189A priority Critical patent/JPH03179177A/en
Publication of JPH03179177A publication Critical patent/JPH03179177A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/16Controlling lubricant pressure or quantity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/12Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10

Abstract

PURPOSE: To reduce the extent of power loss in a machine by installing two oil pumps being driven by an engine, and controlling them in supplying lubricating oil to be discharged out of each pump to a lubricating part via a passage selector valve being selected according to the rotational frequency of the machine such as an engine or the like.
CONSTITUTION: An inlet port of a first oil pump 4 being driven by an engine is connected to an oil pan 1 by a passage 3, and a discharge port of this pump 4 is connected to a lubricating part 2 by a passage 5. In addition, the passage 3 is connected to the inlet port of a second pump 8 being driven by the engine by a passage 7, and the discharge port is connected to a first port 11 of a passage selector valve 10 by a passage 9. This passage selector valve 10 is constituted so as to install a sliding valve body 21, being energized to the upper part by a compression spring 25, in the inner side of a casing 20 and to open or close an inner passage 20 of this valve body 21 through a sphere 23. At time of low engine speed, by way of example, this sphere 23 is pushed up by a pressure differential between these first and second ports 11, 12, and then lubricating oil out of the pumps 4, 8 is made so as to be fed into the lubricating part 2.
COPYRIGHT: (C)1991,JPO&Japio
JP31544189A 1989-12-06 1989-12-06 Oil pump device Pending JPH03179177A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31544189A JPH03179177A (en) 1989-12-06 1989-12-06 Oil pump device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31544189A JPH03179177A (en) 1989-12-06 1989-12-06 Oil pump device

Publications (1)

Publication Number Publication Date
JPH03179177A true JPH03179177A (en) 1991-08-05

Family

ID=18065409

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31544189A Pending JPH03179177A (en) 1989-12-06 1989-12-06 Oil pump device

Country Status (1)

Country Link
JP (1) JPH03179177A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0664378A1 (en) * 1994-01-21 1995-07-26 Concentric Pumps Limited Pumping arrangement
US5918573A (en) * 1997-05-02 1999-07-06 Killion; David L. Energy efficient fluid pump
EP3141752A1 (en) * 2015-09-10 2017-03-15 Myunghwa Ind. Co., Ltd. Dual pump system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0664378A1 (en) * 1994-01-21 1995-07-26 Concentric Pumps Limited Pumping arrangement
WO1995020099A1 (en) * 1994-01-21 1995-07-27 Concentric Pumps Limited Pumping arrangement
US5918573A (en) * 1997-05-02 1999-07-06 Killion; David L. Energy efficient fluid pump
EP3141752A1 (en) * 2015-09-10 2017-03-15 Myunghwa Ind. Co., Ltd. Dual pump system
CN106870059A (en) * 2015-09-10 2017-06-20 明和工业株式会社 Double pump system

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