Pressure regulated cooling system

Details Pressure regulated cooling system Pressure regulated cooling system

1985-12-20

1987-06-23

Cuchinski, Jr., William A.

Internal-combustion engines

Cooling

Automatic coolant flow control

F01P 714

Patent

active

046744495

ABSTRACT:
A cooling system for the engine (11) of an outboard motor (10) uses a pressure relief valve (28) to control the coolant pressure and flow through the cylinder block (34). The relief valve member (36) controls flow at the outlet (42) of the block and is controlled by a diaphragm (45) responding to pump (14) discharge pressure at the inlet to the block (34). An orifice (53) bypasses flow around the block (34) when the main valve seat (35) is closed and is closed by the valve member (36) when the main valve seat (35) is fully opened.

REFERENCES:
patent: 3918418 (1975-11-01), Horn
patent: 3939807 (1976-02-01), Eichinger
patent: 4082068 (1978-04-01), Hale
patent: 4140089 (1979-02-01), Kueny
patent: 4312304 (1982-01-01), Tyner
patent: 4357912 (1982-11-01), Brown

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