Diaphragm carburetor for an internal combustion engine of a hand

Details Diaphragm carburetor for an internal combustion engine of a hand Diaphragm carburetor for an internal combustion engine of a hand

1998-07-15

2000-05-23

Chiesa, Richard L.

Gas and liquid contact apparatus

Fluid distribution

Pumping

261 691, 261DIG68, F02M 1704

Patent

active

060657391

ABSTRACT:
A diaphragm carburetor for an internal combustion engine of a portable hand-held working tool has a housing with a control chamber. A suction channel extends through the housing and has a venturi section. An inlet valve is connected to the control chamber and supplies the control chamber with fuel. A main valve channel connects the control chamber to the venturi section of the suction channel. A check valve is positioned in the main valve channel adjacent to the control chamber and closes the main valve channel toward the control chamber. The main valve channel has a straight and elongate portion extending from the check valve into the venturi section and projecting into the suction channel.

REFERENCES:
patent: 3371658 (1968-03-01), Turner
patent: 3738622 (1973-06-01), Tuckey
patent: 4481152 (1984-11-01), Kobayashi et al.
patent: 4931226 (1990-06-01), Ishii
patent: 5002705 (1991-03-01), Kohler
patent: 5441673 (1995-08-01), Gerhardy
patent: 5599484 (1997-02-01), Tobinai
patent: 5681508 (1997-10-01), Gerhardy
patent: 5843345 (1998-12-01), Guntly

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