Energy conserving refrigeration valve control apparatus

Patent · Tue Jun 21 04:00:00 EDT 1988

OSTI ID:7118010

Dupre, M E

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

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
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