Claims
- 1. An oil pump arrangement for supplying oil under pressure in an internal combustion engine, which comprises in combination:
- an internal combustion engine, one side of a portion of which is provided with a recess in a planar end wall thereof;
- an oil pump having a two part housing comprised of an open-sided housing part and a closure means for closing off the open side of said housing part, and wherein said pump housing is of a size, relative to the size of said recess, for enabling said oil pump to be received within said recess with sufficient clearance to form a clearance space between said oil pump housing and walls of the engine defining said recess, said clearance space forming a suction space for said oil pump;
- impeller gears which are provided in said pump housing and which mesh with one another;
- driving means operatively connected to said internal combustion engine for driving at least one of said impeller gears;
- a suction passage formed in the body of said internal combustion engine for providing communication between said suction space and a source of oil, said pump housing including an opening for providing communication between said suction space and the interior thereof; and
- a pressure passage means for communicating the interior of said pump housing with said internal combustion engine comprising a pressure passage formed in the body of said internal combustion engine and opening into said recess, a passage formed through said pump housing and means for interconnecting the pressure passage of the housing and the pressure passage of the engine body in a manner sealing-off said pressure passage means relative to said suction space.
- 2. An oil pump arrangement according to claim 1, wherein the impeller gears are rotatably mounted by both of said pump housing parts.
Parent Case Info
This application is a division, of application Ser. No. 331,799, filed Dec. 17, 1981, now U.S. Pat. No. 4,459,950, which is a division of Application Ser. No. 104,914, filed Dec. 18, 1979, now U.S. Pat. No. 4,321,896.
US Referenced Citations (9)
Divisions (2)
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Number |
Date |
Country |
Parent |
331799 |
Dec 1981 |
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Parent |
104914 |
Dec 1979 |
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