Energy conserving refrigeration valve control apparatus
This patent describes a refrigeration apparatus comprising the combination of: a compression chamber connected to receive a low-pressure supply of compressible fluid and containing a reciprocally driven piston member; a compressed fluid receiving member; a compression chamber exhaust valve member located intermediate the compression chamber and the compressed fluid receiving member; spring means connected with the exhaust valve member for urging the valve into the compressible fluid blocking closed condition in the absence of a predetermined pressure in the compression chamber; adjustable biasing means for varying the spring means urging force and the compression chamber opening threshold pressure of the exhaust valve in response to a control signal; first sensing means for generating a first signal responsive to predetermined pressure-related characteristics of the compressible fluid in the fluid receiving member; second sensing means for generating a second signal responsive to the ambient temperature surrounding the fluid receiving member; and control circuitry means connected with the first and second signals and the adjustable biasing means for converting the signals into a biasing means control signal.
- Assignee:
- Secretary of the Airforce, Washington, DC
- Patent Number(s):
- US 4751824
- OSTI ID:
- 7118010
- Country of Publication:
- United States
- Language:
- English
Similar Records
Vapor control valve and system therefor
Exhaust gas recycling modulator valve assembly
Related Subjects
320106* -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
COMPRESSIBLE FLOW
COMPRESSORS
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
EFFICIENCY
ENERGY EFFICIENCY
EQUIPMENT
EXHAUST SYSTEMS
FLOW REGULATORS
FLUID FLOW
FLUID MECHANICS
HYDRAULICS
MECHANICS
METERING
OPERATION
REFRIGERATORS
VALVES