Engine for portable working machine

Details Engine for portable working machine Engine for portable working machine

1992-08-18

1993-11-23

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Auxiliary control of carburetor fuel metering

261 35, 261DIG68, F02M 3712

Patent

active

052634540

ABSTRACT:
An engine for a portable working machine includes a carburetor having a fuel supply device which is to be operated by an intake pipe of a cylinder head provided with an intake valve and an exhaust valve, and a pulse pickup passage which is in fluid communication with the carburetor and which is connected to an inner wall of the intake pipe. The passage is provided at a connection portion between the intake pipe and the carburetor.

REFERENCES:
patent: 3181843 (1965-05-01), Brown et al.
patent: 3738336 (1973-06-01), Holland
patent: 4168288 (1979-09-01), Nau et al.
patent: 4508068 (1985-04-01), Tuggle et al.
patent: 4752420 (1988-06-01), Nagasaka et al.
patent: 4949692 (1990-08-01), Devine

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