Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1998-03-12
2000-06-13
Miller, Carl S.
Internal-combustion engines
Charge forming device
Fuel injection system
137529, F02M 4100
Patent
active
060736135
ABSTRACT:
A fuel regulator adjustment system for allowing a user of a snowmobile to specifically adjust the fuel pressure within the fuel system to a desired constant pressure. The inventive device preferably includes a pressure gauge within the fuel system, a tube removably attachable to a vacuum/boost compensation port of a conventional fuel regulator, a valve positioned within the tube, and a vacuum/boost device connected to the tube which selectively creates a vacuum or pressure within the fuel regulator. The user manipulates the vacuum/pressure device to create a vacuum in the fuel regulator if he desires to lower the fuel pressure. If the user desires to increase the fuel pressure, then the vacuum/boost device is manipulated to create pressure within the fuel regulator. After monitoring the pressure gauge to determine that the desired fuel pressure has been reached, the user then closes the valve to maintain the required vacuum or pressure within the fuel regulator.
REFERENCES:
patent: 2260688 (1941-10-01), L'Orange
patent: 2741262 (1956-04-01), Crookston
patent: 4327767 (1982-05-01), Fehrenbach
patent: 4543935 (1985-10-01), Tuckey
patent: 4920942 (1990-05-01), Fujimori
patent: 5056555 (1991-10-01), Frijlink
patent: 5381816 (1995-01-01), Alsobrooks
patent: 5619972 (1997-04-01), Kuenzli
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