Internal-combustion engines – Engine speed regulator – Responsive to deceleration mode
Patent
1990-06-04
1991-03-05
Wolfe, Willis R.
Internal-combustion engines
Engine speed regulator
Responsive to deceleration mode
F02D 1304
Patent
active
049969579
ABSTRACT:
An improved control valve for use in a compression release engine retarder is disclosed. The control valve for the high pressure hydraulic fluid circuit of the retarder is arranged in series with a check valve so that the pressure drop in the circuit is taken principally across the check valve and the control valve is exposed only to the pressure of the low pressure hydraulic fluid supply system. In accrdance with another feature of the invention, the control valve is provided with a relief port which is opened in response to excess pressure in the low pressure hydraulic fluid supply to limit the quantity of hydraulic fluid introduced into the high pressure circuit and thereby prevent excess motion or "jacking" of the slave piston and its associated exhaust valve.
REFERENCES:
patent: 3220392 (1965-11-01), Cummins
patent: 3405699 (1968-10-01), Laas
patent: 4271796 (1981-06-01), Sickler et al.
patent: 4398510 (1983-08-01), Custer
patent: 4399787 (1983-08-01), Cavanagh
patent: 4473047 (1984-09-01), Jakuba et al.
patent: 4655178 (1987-04-01), Meneely
patent: 4664070 (1987-05-01), Meistrick et al.
patent: 4706625 (1987-11-01), Meistrick et al.
patent: 4711210 (1987-12-01), Reichenbach
Jacobs Brake Technology Corporation
Wolfe Willis R.
LandOfFree
Control valve for a compression release engine retarder does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control valve for a compression release engine retarder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control valve for a compression release engine retarder will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-490687