Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Patent
1982-07-19
1984-06-05
Schwadron, Martin P.
Valves and valve actuation
Fluid actuated or retarded
Pilot or servo type motor
60413, F16K 31122
Patent
active
044524226
ABSTRACT:
An electrohydraulic actuating drive for a valve is constructed as a compact drive block which is mounted on the housing of the valve. The drive block includes a support structure which supports other components of the actuating drive on the valve housing and which consists of two plate-shaped end walls one of which is secured to the valve housing, and at least two carrier members which interconnect the end walls and keep the other end wall at an axial distance from the one end wall. One of the other components of the actuating drive is a non-carrying removable tubular circumferential wall which surrounds the support structure and is in sealing contact with the end walls to form a storage receptacle for a low-pressure hydraulic fluid therewith. The remaining components of the actuating drive are a hydraulic pump, an electric motor driving the pump, a pressure storage, a hydraulic actuating cylinder-and-piston unit, a force storage spring and an electro-hydraulic transducer. The pump draws the hydraulic fluid from the storage receptacle and delivers the same at an elevated pressure to the pressure storage from where the fluid is supplied to the actuating unit. The piston rod of the actuating unit extends through the storage receptacle between the carrier members and is connected to the valve member. The force storage spring urges the valve member in the closing direction and is accommodated in the storage receptacle around the piston rod. The pressure storage may be at least partially accommodated in the storage receptacle. The carrier members have channels therein which constitute a part of the hydraulic circuit of the actuating drive.
REFERENCES:
patent: 3682436 (1972-08-01), Legille
patent: 4054155 (1977-10-01), Hill
patent: 4135547 (1979-01-01), Akkermann et al.
patent: 4136520 (1979-01-01), Jerstraeten
Kraftwerk Union
Milde Jr. Karl F.
Rodau Andrew G.
Schwadron Martin P.
Shay James R.
LandOfFree
Electrohydraulic actuating drive for valves does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrohydraulic actuating drive for valves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrohydraulic actuating drive for valves will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1494154