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U.S. Department of Energy
Office of Scientific and Technical Information

Automobile coolant flow control

Patent ·
OSTI ID:6240486

A two-stage flow controller is described for use in a vehicle heating circuit, comprising: a housing having an inlet and an outlet and a flow control chamber intermediate the inlet and outlet; structure defining a valve seat within the chamber; a flow controller assembly slidably disposed in the chamber for movement towards and away from the seat; biasing means urging the flow controller assembly away from the seat; the flow controlling assembly including: a flow controlling element defining a valve seat engaging surface and a through passage, the element operative to restrict fluid flow through the passage as a function of fluid pressure.

Assignee:
Ranco Inc. of Delaware, Dublin, OH
Patent Number(s):
US 4800925
OSTI ID:
6240486
Country of Publication:
United States
Language:
English