Fluid handling – Systems – Multi-way valve unit
Patent
1976-04-14
1978-01-03
Nilson, Robert G.
Fluid handling
Systems
Multi-way valve unit
91464, F16K 31363, F16K 3140
Patent
active
040661024
ABSTRACT:
The invention relates to a hydraulic regulator of a type which may be operated by electromagnetic switching valves. The assembly includes a piston and cylinder arrangement with position setting chambers at opposite ends thereof of larger diameter than the servo piston. Movable abutment elements in the chambers of larger diameter than the servo piston are biased by centering springs. There are parallel circuit branches in which the end chambers are disposed and switching valves are in these branches. The actuating of one of the valves to block its branch raises the pressure in the end chamber in that branch causing the piston to move in the other direction so as to move away from the biasing force of one spring biased element and engage the biasing force of the other spring biased element. When the other switching valve is actuated to block its branch to stop the piston in a desired position, the fluid pressure in the end chambers is equal. The sring bias acting through one of the abutment elements creates unequal biasing forces on the servo piston in the direction from which it started.
REFERENCES:
patent: 2591800 (1952-04-01), Gardiner
patent: 2605079 (1952-07-01), Miller
patent: 2655940 (1953-10-01), Jackson
patent: 2800143 (1957-07-01), Keller
patent: 2981287 (1961-04-01), Caslow
patent: 3556154 (1971-01-01), Kramer
patent: 3799202 (1974-03-01), McAvoy
Danfoss A/S
Nilson Robert G.
LandOfFree
Hydraulic regulator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic regulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic regulator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-276301