Idle down control for a pressure washer

Details Idle down control for a pressure washer Idle down control for a pressure washer

2007-03-29

2011-10-18

Kramer, Devon C (Department: 3746)

Pumps

Condition responsive control of pump drive motor

By controlling internal combustion drive engine

Reexamination Certificate

active

08038413

ABSTRACT:
An idle down controller for pressure washers is responsive to the drop in pressure at the pump outlet. The controller includes a sensor disposed in the pump outlet manifold. When the fluid is being bypassed, the manifold pressure drop is communicated to an actuator. The actuator overrides the engine governor and forces the engine throttle to the idle speed. When an operator is discharging a pressurized fluid, the actuator allows the governor to operate the engine at its normal speed.

REFERENCES:
patent: 1817698 (1931-08-01), McMillan
patent: 2651996 (1953-09-01), Nahmens
patent: 3103891 (1963-09-01), Fulton et al.
patent: 3690558 (1972-09-01), Tuttle
patent: 3885739 (1975-05-01), Tuttle
patent: 3905516 (1975-09-01), Wisnia
patent: 3997282 (1976-12-01), Thomas et al.
patent: 4047665 (1977-09-01), Moynihan
patent: 4182354 (1980-01-01), Bergstedt
patent: 4238073 (1980-12-01), Liska
patent: 4330238 (1982-05-01), Hoffman
patent: 4492525 (1985-01-01), Bilyeu
patent: 4589825 (1986-05-01), Schmidt
patent: 5035580 (1991-07-01), Simonette
patent: 5067654 (1991-11-01), Paige
patent: 5174723 (1992-12-01), Groger et al.
patent: 5186142 (1993-02-01), Brunelli et al.
patent: 5244351 (1993-09-01), Arnette
patent: 5529460 (1996-06-01), Eihusen et al.
patent: 5848877 (1998-12-01), Dill et al.
patent: 5902094 (1999-05-01), Hoenisch et al.
patent: 5979788 (1999-11-01), Rancourt et al.
patent: 6062822 (2000-05-01), Nathan
patent: 6123509 (2000-09-01), Hung
patent: 6648603 (2003-11-01), Dexter et al.
patent: 2004/0086389 (2004-05-01), Conner et al.
patent: 2008/0245899 (2008-10-01), Parris

Affiliated with

Also associated with

Rating

Idle down control for a pressure washer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Idle down control for a pressure washer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Idle down control for a pressure washer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4276325