Oil pump drive arrangement for a piston internal-combustion engi

Details Oil pump drive arrangement for a piston internal-combustion engi Oil pump drive arrangement for a piston internal-combustion engi

1990-10-16

1991-11-12

Cross, E. Rollins

Internal-combustion engines

Lubricators

Crankcase, pressure control

123 9015, 123198C, F01M 102

Patent

active

050638955

ABSTRACT:
The lubricating-oil circulating system of a piston internal-combustion engine is supplied by a main oil pump arranged in the oil pan and driven by the crankshaft. A second oil pump, which is also driven by the crankshaft, supplies hydraulic pressure to hydraulic camshaft rotating devices. The second oil pump is integrated in an intermediate timing gear and is driven by it, the camshafts being driven by the crankshaft by way of this intermediate timing gear.

REFERENCES:
patent: 3159047 (1964-12-01), Dable
patent: 4589382 (1986-05-01), Tsuboi
patent: 4864988 (1989-09-01), Mezger
patent: 4878461 (1989-11-01), Sapienza, IV

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