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Class 123/517 - Carburetor float bowl drain


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter in which the charge-forming device is a carburetor
No. of patents: 8
Last issue date: 08/17/2010


NumberTitleIssue Date
7775194Automatic residual fuel vent device for carburetor
An automatic residual fuel vent device for a carburetor, the device including a fuel supply passage (15) connecting a fuel tank (TF) and a float chamber (10), a negative pressure passage (17) connecting an intake passage (8) and a negativ...
08/17/2010
7568472Controlling evaporative emissions in a fuel system
Methods and fuel systems to reduce evaporative emissions of a volatile fuel. A fuel tank contains fuel, a carburetor mixes air with the fuel from the fuel tank, and a plurality of fluid paths route fuel amongst and/or between the fuel tank and the carburetor. A valv...
08/04/2009
7424884Controlling evaporative emissions in a fuel system
Methods and fuel systems to reduce evaporative emissions of a volatile fuel. A fuel tank contains fuel, a carburetor mixes air with the fuel from the fuel tank, and a plurality of fluid paths route fuel amongst and/or between the fuel tank and the carburetor. A valv...
09/16/2008
7263981Controlling evaporative emissions in a fuel system
Methods and fuel systems to reduce evaporative emissions of a volatile fuel. A fuel tank contains fuel, a carburetor mixes air with the fuel from the fuel tank, and a plurality of fluid paths route fuel amongst and/or between the fuel tank and the carburetor. A valv...
09/04/2007
6202631Ventilating unit for carburetor
To maintain a float chamber at atmospheric pressure by quickly discharging fuel from the float chamber even when a relatively large amount of fuel gushes into the float chamber. A float chamber is provided for containing a predetermined quantity of fuel. ...
03/20/2001
5894833Internal combustion engine
The object of the present invention is to provide an internal combustion engine for solving the problem of fuel leakage through an air vent of an carburetor. An internal combustion engine comprises a fuel tank; a carburetor having an air vent at a locatio...
04/20/1999
5732686Air vent apparatus for carburetor
A fuel carbureted in a float chamber of a carburetor is prevented from entering through an air vent path into an air intake path during low velocity running of a vehicle. An outer vent path and an inner vent path are provided on the upstream side of an ai...
03/31/1998
4811718Fuel supply system for internal combustion engine
A fuel supply system for an internal combustion engine comprising: a suction pump provided in a fuel supply passage, a ventilation passage for allowing interior space of a fuel tank to be communicated with the atmosphere, a normally closed ventilation val...
03/14/1989
 
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