Pumps – With condition responsive pumped fluid control – Pressure responsive relief or bypass valve
Patent
1977-09-06
1979-04-03
Croyle, Carlton R.
Pumps
With condition responsive pumped fluid control
Pressure responsive relief or bypass valve
418100, 418201, F04B 4902, F04B 4908
Patent
active
041474759
ABSTRACT:
A helical screw air compressor unit has a rotary capacity control valve, a compressor inlet throttling valve, and a pressure relief valve for venting the compressor discharge conduit. A control circuit senses pressure in the compressed air supply system downstream of the compressor and operates the capacity control valve, inlet throttling valve, and pressure relief valve in a predetermined sequence to provide an improved power consumption characteristic for variable demand compressor applications. The control circuit includes a hydraulic control valve and an actuator for operating the rotary capacity control valve to regulate compressor throughput to maintain a predetermined pressure without overpressuring the supply system during operation at conditions of reduced demand for compressed air.
REFERENCES:
patent: 3205823 (1965-09-01), Brown
patent: 3432089 (1969-03-01), Schibbye
patent: 3737252 (1973-06-01), Pilarczyk et al.
patent: 3874828 (1975-04-01), Herschler et al.
patent: 4063855 (1977-12-01), Paul
Herschler Michael G.
Post Roger L.
Shoop John C.
Croyle Carlton R.
Gardner-Denver Company
Martin Michael E.
Ross Thomas I.
LandOfFree
Control system for helical screw compressor 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 system for helical screw compressor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for helical screw compressor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1744760