Automatic engine priming system for rotary mowers

Details Automatic engine priming system for rotary mowers Automatic engine priming system for rotary mowers

2005-05-24

2005-05-24

Dolinar, Andrew M. (Department: 3747)

Internal-combustion engines

Starting device

Auxiliary fuel supply device

C123S179130, C261S036200, C261SDIG008

Reexamination Certificate

active

06895914

ABSTRACT:
A priming system for the carburetor of a small internal combustion engine which is used with a lawnmower, for example, in which the priming system is remotely actuated. The priming system includes a priming feature for supplying an amount of liquid fuel to the carburetor throat to aid in starting the engine, and an enrichment feature for providing an enriched fuel supply to the engine during a warm-up period. In one embodiment, the priming system includes an automatic primer disabling feature which is operative when the engine is warm to block the supply of priming fuel to the carburetor throat and thereby prevent priming during a warm engine re-start. In another embodiment, the priming system includes a primer reduction feature, which is operative when the engine is warm to provide a reduced amount of priming fuel to the carburetor throat during a warm engine re-start, with respect to the amount of fuel which is supplied during a cold engine start.

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