Solar water heating system

Patent · Tue Mar 12 04:00:00 EST 1991

OSTI ID:5425080

Solomon, F D

This patent describes an atmospherically sealed regulating valve initially opening to pass fluid at a minimum selected pressure and remaining open to pass fluid until the fluid pressure reaches a selected reduced pressure. It comprises: housing means, cap means enclosing the open end of the housing means, valve element means movable axially in the housing means, first chamber means in the housing means axially surrounding one end of the valve element means, second chamber means in the housing means axially surrounding the other end of the valve element means, bore means extending through the valve element means connecting the first chamber means and the second chamber means, fluid inlet passage means supplying fluid to the first and second chamber means, third chamber means in the housing means communicating with fluid outlet passage means, and biasing means permitting movement of the valve element means for fluid communication between the first chamber means and the third chamber means at the minimum selected pressure in the fluid inlet passage means and effecting movement of the valve element means for interrupting fluid communication between the first chamber means and the third chamber means at the selected reduced pressure the biasing means being a spring washer that is a bowed flexible annular member interposed between a circular seat within the housing means and the juncture of a body portion of the valve element means and an enlarged guide section.

• Assignee: NOV; NOV-91-018033; EDB-91-122656
• Patent Number(s): US 4998558; A
• Application Number: PPN: US 7-475292
• OSTI ID: 5425080
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140907* -- Solar Thermal Utilization-- Water Heating
APPLIANCES
CONTROL EQUIPMENT
DESIGN
EQUIPMENT
FLOW REGULATORS
HEATERS
OPERATION
PRESSURE DEPENDENCE
SOLAR EQUIPMENT
SOLAR WATER HEATERS
VALVES
WATER HEATERS