Apparatus for heating an engine using a dual position...

F - Mech Eng,Light,Heat,Weapons – 02 – N

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F02N 19/02 (2010.01) F02N 19/10 (2010.01) F16L 37/28 (2006.01)

Patent

CA 1264626

ABSTRACT OF THE DISCLOSURE A dual-position continuous flow valve assembly is disclosed, characterized by similarly configured male and female valve members each containing a piston spring biased to a first position. When the valve members are disconnected, the pistons are in their first positions and a single flow path between inlet and outlet openings of the valve members is defined. When the valves are connected by a quick connect/disconnect device, the pistons are axially diplaced to their second positions to define two separate flow paths. One flow path is from the male valve inlet opening to the female valve outlet opening via first corresponding passages defined in the valve chambers by the stem portions of the pistons. A second flow path is from the female valve inlet opening to the male valve outlet opening via second corresponding passages defined in the valve chambers by the piston stem portions. The valve assembly is used to couple the cooling system of a cold engine with a heated fluid source, whereby the heated fluid from the source may be circulated through the engine to facilitate starting thereof, or to supply emergency heat with a number of emergency heating attachments such as a water blanket or an auxiliary hot fluid heater with an electric blower.

499119

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