Valve control device
AssigneeBorgWarner Inc.
InventorRalf Christmann
Life of this patent
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Abstract
The present invention relates to a valve control device (1) having a housing (2), which comprises a first low pressure chamber (3) and a first atmospheric pressure chamber (4), which are separated from each other in a gas-tight manner by means of a spring-loaded first membrane (5); having a control rod (6) for controlling the position of a locking element of the bypass valve (7), wherein the control rod (6) is operatively connected to the first membrane (5), further having a second low pressure chamber (8), which is flow-connected to the first low pressure chamber (3), and having a second spring-loaded membrane (9), which is arranged in the second low pressure chamber (8) and is coupled to the first membrane (5), wherein the control rod (6) is mounted on the second membrane (9).
Claims20
A valve control device (1) comprising:
- a housing (2) which has a first vacuum chamber (3) and a first atmospheric pressure chamber (4), which first vacuum chamber (3) and first atmospheric pressure chamber (4) are separated from one another in a gas-tight fashion by a spring-loaded first diaphragm (5);
- a regulating rod (6) for regulating the position of a shut-off element of a bypass valve (7), with the regulating rod (6) being operatively connected to the first diaphragm (5),
- a second vacuum chamber (8) in fluid communication with the first vacuum chamber (3), and
- a second spring-loaded diaphragm (9) which is arranged in the second vacuum chamber (8), with the regulating rod (6) being fastened to the second diaphragm (9).
A turbocharger comprising:
- a turbine which has a bypass with a bypass valve (7), a control device (1) for the bypass valve (7), which control device (1) has the following:
- a housing (2) which has a first vacuum chamber (3) and a first atmospheric pressure chamber (4), which first vacuum chamber (3) and first atmospheric pressure chamber (4) are separated from one another in a gas-tight fashion by a spring-loaded first diaphragm (5);
- a regulating rod (6) for regulating the position of a shut-off element of the bypass valve (7), with the regulating rod (6) being operatively connected to the first diaphragm (5),
- a second vacuum chamber (8) in fluid communication with the first vacuum chamber (3), and
- a second spring-loaded diaphragm (9) which is arranged in the second vacuum chamber (8) with the regulating rod (6) being fastened to the second diaphragm (9).
A valve control device (1) comprising:
- a housing (2) having a first vacuum chamber (3) and a first atmospheric pressure chamber (4), the first vacuum chamber (3) and first atmospheric pressure chamber (4) being separated from one another in a gas-tight fashion by a spring-loaded first diaphragm (5);
- a regulating rod (6) for regulating the position of a shut-off element of a bypass valve (7), the regulating rod (6) being operatively connected to the first diaphragm (5),
- a second vacuum chamber (8) in fluid communication with the first vacuum chamber (3) by a hollow screw (21) that includes flow slots (22), and
- a second spring-loaded diaphragm (9) which is arranged in the second vacuum chamber (8), with the regulating rod (6) being fastened to the second diaphragm (9).
Dependencies are inferred from the claim text.