SOLUTION FOR CONTROLLING A TURBO COMPRESSOR
First Claim
1. An actuator (10) comprising at least one turbo compressor stage (1a, 1b) with an outlet for conveying gas compressed in said at least one turbo compressor stage (1a, 1b) to at least one cooler (3a, 3b), and a shaft (5a) for rotating said at least one stage of turbo compressor (1a, 1b) for increasing the pressure of the gas to be supplied to the actuator (10), characterized in that the actuator (10) further comprises a turbine (2), and a control valve (4), by means of which the flow of compressed gas produced by the turbo compressor (1a, 1b) to the turbine (2) is arranged to be adjusted.
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Accused Products
Abstract
An actuator includes at least one stage of turbo compressor, with an outlet for conveying gas compressed in the at least one stage of turbo compressor to at least one cooler, and a shaft for rotating the at least one stage of turbo compressor, for increasing the pressure of the gas to be supplied to the actuator. The actuator also includes a turbine and a control valve by means of which the flow of compressed gas produced by the turbo compressor to the turbine is arranged to be adjusted. A method for controlling the actuator, as well as a control system for the actuator are also described.
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Citations
17 Claims
- 1. An actuator (10) comprising at least one turbo compressor stage (1a, 1b) with an outlet for conveying gas compressed in said at least one turbo compressor stage (1a, 1b) to at least one cooler (3a, 3b), and a shaft (5a) for rotating said at least one stage of turbo compressor (1a, 1b) for increasing the pressure of the gas to be supplied to the actuator (10), characterized in that the actuator (10) further comprises a turbine (2), and a control valve (4), by means of which the flow of compressed gas produced by the turbo compressor (1a, 1b) to the turbine (2) is arranged to be adjusted.
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16. A method for controlling an actuator (10), which actuator (10) comprises at least one turbo compressor (1a, 1b) with an outlet for conveying gas compressed in said at least one turbo compressor (1a, 1b) to at least one cooler (3a, 3b), and a shaft (5a) to which said at least one turbo compressor (1a, 1b) is connected, in which method the shaft (5a) is rotated to raise the pressure of the gas to be supplied to the actuator (10), characterized in that the actuator (10) further comprises a turbine (2) and a control valve (4), wherein in the method, the flow of compressed gas produced by the turbo compressor (1a, 1b) to the turbine (2) is adjusted by means of said control valve (4).
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17. A control system for an actuator (10), which actuator (10) comprises at least one stage of turbo compressor (1a, 1b) with an outlet for conveying gas compressed in said at least one stage of turbo compressor (1a, 1b) to at least one cooler (3a, 3b), and a shaft (5a) for rotating said at least one stage of turbo compressor (1a, 1b) for raising the pressure of the gas to be supplied to the actuator (10), characterized in that the control system further comprises a turbine (2), and a control valve (4), by means of which the flow of compressed gas produced by the turbo compressor (1a, 1b) to the turbine (2) is arranged to be adjusted.
Specification