Thermostatic valve and method for controlling a coolant circuit

Details Thermostatic valve and method for controlling a coolant circuit Thermostatic valve and method for controlling a coolant circuit

2005-01-18

2005-01-18

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Cooling

Automatic coolant flow control

C236S034000

Reexamination Certificate

active

06843210

ABSTRACT:
A thermostatic valve for a coolant circuit of an internal combustion engine, with a housing through which the flow is capable of passing and which has a first throughflow orifice for connection to a first coolant line, a second throughflow orifice for connection to a second coolant line, and a third throughflow orifice for connection to a third coolant line, and with a closure member which is mounted in the housing and which can be adjusted by an actuating unit, the closure member having a first shut-off element for shutting off the first throughflow orifice and a second shut-off element, coupled to the first shut-off element, for shutting off the second throughflow orifice. The second shut-off element is assigned an adjusting device, via which the second shut-off element can be adjusted relative to the first shut-off element in such a way that the closure member can be brought, on one hand, into a passage position in which it can close exactly one throughflow orifice, and, on another hand, into a shut-off position, in which it can close two throughflow orifices.

REFERENCES:
patent: 3817450 (1974-06-01), Mischke
patent: 3877443 (1975-04-01), Henning et al.
patent: 4196847 (1980-04-01), Gobien
patent: 4456167 (1984-06-01), Bueter
patent: 5174254 (1992-12-01), Humburg
patent: 6164248 (2000-12-01), Lehmann
patent: 6539899 (2003-04-01), Piccirilli et al.
patent: 0467130 (1992-01-01), None

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