Valve module for digital coolant control system

Details Valve module for digital coolant control system Valve module for digital coolant control system

1981-09-22

1983-06-14

Cohan, Alan

Fluid handling

Systems

With flow control means for branched passages

251129, 239391, 239551, B05B 116

Patent

active

043877397

ABSTRACT:
To facilitate manufacture and field maintenance of an electrical liquid coolant valve module, hard wiring is eliminated from the valve head and is replaced by a printed circuit card engaged by spring contact probes removably held in each replaceable solenoid unit of the module. A magnetic-non magnetic control poppet for each solenoid unit eliminates a dynamic seal for the poppet resulting in a very fast response time and better shut-off characteristics. System fluid pressure assists in closing the magnetic-non magnetic poppet. A replaceable poppet seat is made easily removable with a seat retainer which in turn enables removal of the two component poppet. The head of the valve module need not be separated from the coolant header when servicing solenoids and/or poppet seats, thus reducing the likelihood of starting leaks in the system.

REFERENCES:
patent: 3785389 (1974-01-01), Friedland
patent: 4095864 (1978-06-01), Hardin

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