Aspiration controlled collant transfer apparatus and method, for engine/radiator cooling systems
US5425333A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1994 |
| Grant date | Jun 20, 1995 |
| Priority date | — |
| Expiry date | Feb 14, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01P11/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In apparatus for control of liquid coolant flow to and from an engine and radiator coolant system, comprising a closed tank to receive the coolant; a first line extending at the exterior of the tank, and also communicating with the tank interior, the first line connectible with the coolant system; ducting associated with the tank and having an inlet for connection to a source of compressed air, an outlet outside the tank, and having an aspiration side port between the inlet and outlet, the side port also connected to the tank interior; and a first valve for controlling compressed air flow through the ducting; whereby in one position of the valve compressed air flows into the tank via the side port to drive coolant from the tank interior via the first line and to the coolant system, and in another position of the valve compressed air flow through the ducting to the outlet acts to draw fluid into the tank from the engine coolant system via the first line, in response to suction communication to the tank interior via the side port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.