Patent · US Expired

Pressure-vacuum cooling system for internal combustion engine utilizing reservoir

US4479460A · kind A · utility

6Cited by
21References
11Claims
0Family size

Inventor

Key dates

Filing dateNov 22, 1982
Grant dateOct 30, 1984
Priority date
Expiry dateNov 22, 2002

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF01P11/02
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A coolant system for an internal combustion engine equipped with a radiator, involving the use of a reservoir utilized in a semi-hermetically sealed relationship with the engine and radiator, such that only rarely does additional coolant liquid need be added to the coolant system. This system has the safety of a pressure cap set to release in the pressure range of between 10 and 20 pounds per square inch, but no readmission valve is utilized in the cap, thus excluding unwanted atmospheric air from the coolant system. The reservoir is preferably insulated and of elongate configuration.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.