FAIL-SAFE ROTARY ACTUATOR FOR A COOLANT CIRCUIT
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Accused Products
Abstract
The invention relates to a fail-safe rotary actuator (1) for a coolant circuit, in particular for a coolant circuit of an internal combustion engine (2) having a plurality of sub-circuits (3) and (4), includes a coolant delivery pump (5) for circulating the coolant within the coolant circuit, and having a rotary-slide housing (8) which has a plurality of housing pass-through openings (6) and (7) and in which at least one rotary slide (9) having at least one rotary slide pass-through opening (11) and (12) is rotatably supported, wherein the housing pass-through openings (6) and/or (7) are fluidly connected to at least one sub-circuit (3) and/or (4), and can be brought into at least partial coincidence with the rotary slide pass-through openings (11) and/or (12) by a rotary motion of the rotary slide (9), wherein a thermostat valve (13) opens a flow path running parallel to the rotary slide (9) from one of the sub-circuits (3) or (4) to the coolant delivery pump (5), when a temperature limit of the coolant is exceeded.
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Citations
22 Claims
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1-10. -10. (canceled)
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11. A fail-safe rotary actuator for a coolant circuit, comprising:
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a coolant delivery pump for circulating a coolant within the coolant circuit; a rotary-slide housing having a plurality of housing pass-through openings which are fluidly connected to at least one sub-circuit of the coolant circuit; at least one rotary slide having at least one rotary slide pass-through opening and supported in the rotary-slide housing for rotation to enable at least partial coincidence of the housing pass-through openings with the rotary slide pass-through opening; and a thermostat valve adapted to open a flow path running parallel to the rotary slide from the at least one sub-circuit to the coolant delivery pump, when a temperature limit of the coolant is exceeded. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification