| Patent Number |
Title Of Patent |
Date Issued |
| 7309061 |
Diaphragm-type carburetors |
December 18, 2007 |
| The carburetor prevents an air-fuel mixture from becoming excessively lean and prevents a fuel pressure from becoming unstable, thereby making it possible to stably supply a fuel to an engine, in a diaphragm-type carburetor with a pressure regulator. A diaphragm-type carburetor inclu |
| 7216856 |
Accelerator apparatus for diaphragm carburetor |
May 15, 2007 |
| The accelerator apparatus prevents air from remaining within a pump chamber and discharged fuel vapor from causing a pumping effect so as to a destabilize engine operation and increase of an exhaust gas content of harmful material, in an accelerator apparatus in which an accelerated |
| 7210672 |
Accelerator apparatus for diaphragm carburetors |
May 1, 2007 |
| An accelerated fuel passage of an accelerator pump operatively connected with a throttle shaft having a throttle valve. The accelerated fuel passage is connected to an upstream side of a needle orifice, which orifice is coupled to a main nozzle. Consequently, the fuel is discharged b |
| 7168423 |
Gas sensor units for engines |
January 30, 2007 |
| In a multipurpose engine with a reduced or limited displacement adapted for use in a portable work machine or the like, the engine includes a detecting element of a gas sensor for controlling an air-fuel ratio. Damage or degradation of the detecting element due to vibration from the |
| 7111616 |
Starting apparatus of diaphragm-type carburetor |
September 26, 2006 |
| A starting apparatus of a diaphragm-type carburetor, a starting pump disposed at a convenient and accessible location which is separate from a carburetor main body, and air is prevented from being mixed into fuel, in such a structure constructed as a suction-type starting pump. A suction |
| 7104527 |
Carburetor with manual choke mechanism |
September 12, 2006 |
| A choke valve is fixed to a predetermined position even after manual release, whereby an improved start and a subsequent stable operation are obtained. A fixing force and a valve opening force are applied to a choke valve shaft. Further, a pin of a choke valve lever pushes an arm piece o |
