Multi-purpose valve assembly

Patent · Tue Aug 11 00:00:00 EDT 1987

OSTI ID:6098081

Stegmann, R; Mandy, Z A

A flow control valve is described for use in the suction line to a compressor of a vapor refrigeration system having a compressor discharge line to a condenser and an evaporator, comprising a valve housing having inlet and outlet passages, interior wall means within the housing intermediate the inlet and outlet passages, the interior wall means having an opening for the passage of refrigerant vapor, the interior wall means having means on the inlet passage side of the opening defining a first valve seat and having means on the outlet passage side of the opening defining a second valve seat, the valve housing has first wall means spaced from and overlying the first valve seat, a valve stem mounted for axial movement in the first wall means, means for axially moving the valve stem, a first valve member mounted on the valve stem and positioned to be moved into and out of engagement with the first valve seat. The valve housing has second wall means spaced from and underlying the second valve seat, shaft means mounted on the second wall means, a second valve member slideably mounted on the shaft means and adapted to be moved into and out of engagement with the second valve seat, means urging the second valve member into engagement with the second valve seat, and means for applying fluid pressure to the second valve member to urge it into engagement with the second valve seat, the inlet passage being connectable to the outlet of the evaporator. The outlet passage is connectable to the suction line to the compressor and the means for applying fluid pressure being connectable to the line between the compressor and condenser.

• Assignee: Frick Co., Waynesboro, PA
• Patent Number(s): US 4685310
• OSTI ID: 6098081
• Resource Relation: Patent File Date: Filed date 14 Oct 1986
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
BUILDINGS
REFRIGERATORS
VALVES
COMPRESSORS
INTAKE STRUCTURES
REFRIGERANTS
SHAFTS
VAPOR COMPRESSION REFRIGERATION CYCLE
VAPORS
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
FLUIDS
GASES
MACHINE PARTS
MECHANICAL STRUCTURES
WORKING FLUIDS
320106* - Energy Conservation
Consumption
& Utilization- Building Equipment- (1987-)