Membrane fuel pump with pulse dampener

Details Membrane fuel pump with pulse dampener Membrane fuel pump with pulse dampener

1989-05-22

1990-02-27

Kamen, Noah P.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123DIG5, 261 35, 417540, F02B 7700

Patent

active

049036556

ABSTRACT:
The invention is directed to a membrane fuel pump for an internal combustion engine equipped with a membrane carburetor. The engine is that of a working apparatus and especially a handheld portable tool such as a motor-driven chain saw or the like. The membrane pump includes a drive chamber charged with the pressure inside the crankcase of the engine and a pump chamber separated from the drive chamber by a membrane. The pump chamber is connected at its suction end to a fuel tank via a first check valve and is connected to a pressure controller of the membrane carburetor at its pressure end via a second check valve. The pressure end of the membrane pump is connected with the suction end thereof via a bypass and a throttle is mounted in this bypass. With the throttle bypass between the pressure end and the suction end, the pumped volume is reduced at idle and the pump pressure is smoothed. Disturbances at the membrane carburetor are avoided.

REFERENCES:
patent: 3170005 (1965-02-01), Phillips
patent: 4552101 (1985-11-01), Borst et al.
patent: 4594971 (1986-06-01), Borst

Affiliated with

Also associated with

Rating

Membrane fuel pump with pulse dampener does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Membrane fuel pump with pulse dampener, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Membrane fuel pump with pulse dampener will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-166483