초록 ▼

A carburetor for an internal combustion engine is provided. The carburetor float bowl is internally vented through a venting path that leads from the carburetor throat, via the primer chamber, to the airspace above the float bowl. An annular lip is provided on the primer bulb that acts as a check va

A carburetor for an internal combustion engine is provided. The carburetor float bowl is internally vented through a venting path that leads from the carburetor throat, via the primer chamber, to the airspace above the float bowl. An annular lip is provided on the primer bulb that acts as a check valve and seals off the venting passageway when the primer bulb is depressed, thereby insuring that the primer charge passes into the float bowl and is not lost through the venting passageway.

대표청구항 ▼

A carburetor for providing a fuel/air mixture to an internal combustion engine, said carburetor comprising: a carburetor body having a throat formed therein, said throat defining a fuel/air mixture passage through said body, a fuel supply bowl, conduit means for conveying fuel from said fuel supply

A carburetor for providing a fuel/air mixture to an internal combustion engine, said carburetor comprising: a carburetor body having a throat formed therein, said throat defining a fuel/air mixture passage through said body, a fuel supply bowl, conduit means for conveying fuel from said fuel supply bowl to said throat, a variable volume primer chamber, a priming passageway from said chamber to said fuel supply bowl, operator actuable primer means for abruptly varying the volume of said primer chamber and displacing a discrete volume of air from said chamber through said priming passageway into said fuel supply bowl, a venting passageway extending from said throat to said chamber, and valve means associated with said primer chamber for blocking the flow of air from the primer chamber through said venting passageway when the primer means is actuated to displace air through said priming passageway into said fuel supply bowl.