About 11 results
https://drivepatents.com/patents/1086769 · 2 Jun 2004
A stratified scavenging carburetor (1) with a lost motion coupling (29) permits limited relative movement of a throttle valve (2) relative to an air valve (10) so that initial opening of the throttle valve (2) off idle does not open the air valve (10) to a...
https://drivepatents.com/patents/1090511 · 7 Jan 2004
A stratified scavenging mechanism of a two-stroke internal combustion engine including a carburetor for supplying and controlling an air and fuel mixture to the engine, an air intake passage (2) in which a throttle valve (4) is disposed, an air passage pro...
https://drivepatents.com/patents/1091236 · 10 Dec 2003
A rotary throttle valve carburetor includes an air intake passage (51) and a throttle valve bore formed in a carburetor body (14), a cam (22) disposed in the throttle valve bore, and a throttle valve (15) disposed in the throttle valve bore so that one end...
https://drivepatents.com/patents/1093405 · 10 Sep 2003
An idle fuel supply device for a carburetor has an idle air passage (2) that communicates with an air intake passage (30) and a fuel chamber (27). A passage (2) extending from a fuel metering chamber (13) is connected to the fuel chamber (27) preferably vi...
https://drivepatents.com/patents/1098125 · 26 Feb 2003
A fuel metering assembly for a diaphragm type carburetor has a fuel metering diaphragm with at least two convolutions or annular projections providing greater travel of the diaphragm and more consistent movement of the diaphragm throughout its stroke or tr...
https://drivepatents.com/patents/1109587 · 4 Oct 2001
A rotary throttle valve carburetor has a fuel-and-air mixing passage which extends through a carburetor body. A cylindrical throttle chamber extends down from a top surface of the body and communicates transversely with the fuel-and-air mixing passage. A r...
https://drivepatents.com/patents/1109527 · 4 Oct 2001
A carburetor fuel mixture adjustment assembly has a threadable holder which suppresses rotation of a needle valve body disposed within an elongated receptacle defined within a carburetor body. The threadable holder is rigidly engaged within a threading cha...
https://drivepatents.com/patents/1110167 · 19 Sep 2001
A two-stroke internal combustion engine having an air control arrangement which controls scavenging air flow during rapid engine acceleration to optimize the acceleration and maximum power output of the engine while maintaining low exhaust emissions from t...
https://drivepatents.com/patents/1112855 · 23 May 2001
A rotary throttle valve carburetor for a two cycle engine reroutes a portion of intake air and introduces the air around the circumference of a fuel feed tube. A rotary throttle, rotatable and vertically moveable, fits into a cylindrical chamber intersecti...
https://drivepatents.com/patents/1113151 · 9 May 2001
An improved fuel flow control device of a diaphragm-type carburetor having a lever (34) which can be easily coupled to a flow control valve body (70). The lever has a resilient portion (65) which flexes to permit a cooperating portion (72) of the valve bod...