Control arrangement for cooling power electronic components
First Claim
1. A control arrangement comprising a first selectable controller for controlling an action, a second selectable controller for controlling the same action as the first selectable controller, a selector for selecting one of the first and second controller to control said action, wherein the arrangement further comprises a first heat exchanger associated with the first controller to effect a transfer of heat between the first controller and the first heat exchanger dependent upon a first flow, and a second heat exchanger associated with the second controller to effect a transfer of heat between the second controller and the second heat exchanger dependent upon a second flow, the selector being capable of determining the availability of the first flow and/or the second flow and accordingly select the first controller or the second controller to control the action.
1 Assignment
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Accused Products
Abstract
A control arrangement (10) comprises a first selectable controller (12) for controlling an action, and a second selectable controller (14) for controlling the action. The arrangement also includes a selector (22) for selecting one of the controllers (12, 14) to control the action. The arrangement (10) further includes a first heat exchanger (16) associated with the first controller (12) to effect a transfer of heat between the first controller (12) and the first heat exchanger (16). The arrangement also includes a second heat exchanger (18) associated with the second controller (14) to effect a transfer of heat between the second controller (14) and the second heat exchanger (18).
19 Citations
24 Claims
- 1. A control arrangement comprising a first selectable controller for controlling an action, a second selectable controller for controlling the same action as the first selectable controller, a selector for selecting one of the first and second controller to control said action, wherein the arrangement further comprises a first heat exchanger associated with the first controller to effect a transfer of heat between the first controller and the first heat exchanger dependent upon a first flow, and a second heat exchanger associated with the second controller to effect a transfer of heat between the second controller and the second heat exchanger dependent upon a second flow, the selector being capable of determining the availability of the first flow and/or the second flow and accordingly select the first controller or the second controller to control the action.
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10. A control arrangement comprising a first selectable controller for controlling an action, a second selectable controller for controlling the action, a selector for selecting one of the first and second controller to control said action, wherein the arrangement further comprises a first heat exchanger associated with the first controller to effect a transfer of heat between the first controller and the first heat exchanger dependent upon a first flow, and a second heat exchanger associated with the second controller to effect a transfer of heat between the second controller and the second heat exchanger wherein the first heat exchanger is arranged to cool the first controller, and the second heat exchanger is arranged to cool the second controller.
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11. A gas turbine engine incorporating a control arrangement comprising a first selectable controller for controlling an action, a second selectable controller for controlling the same action as the first selectable controller, a selector for selecting one of the first and second controller to control said action, wherein the arrangement further comprises a first heat exchanger associated with the first controller to effect a transfer of heat between the first controller and the first heat exchanger dependent upon a first flow, and a second heat exchanger associated with the second controller to effect a transfer of heat between the second controller and the second heat exchanger.
- 12. A control arrangement comprising a first selectable controller for controlling an action, a second selectable controller for controlling the action, a selector for selecting one of the first and second controller to control said action, wherein the arrangement further comprises a first heat exchanger associated with the first controller to effect a transfer of heat between the first controller and the first heat exchanger dependent upon a first flow, and a second heat exchanger associated with the second controller to effect a transfer of heat between the second controller and the second heat exchanger wherein the first heat exchanger comprises a first fluid to effect said transfer of heat, and the second heat exchanger comprises a second fluid, to effect said heat transfer wherein the first and second fluids comprise fuel or air.
- 15. A control arrangement comprising a first selectable controller for controlling an action, a second selectable controller for controlling the same action as the first selectable controller, a selector for selecting one of the first and second controller to control said action, wherein the arrangement further comprises a first heat exchanger associated with the first controller to effect a transfer of heat between the first controller and the first heat exchanger dependent upon a first flow, and a second heat exchanger associated with the second controller to effect a transfer of heat between the second controller and the second heat exchanger wherein the arrangement further comprises a selectable third controller for controlling the action, which can be selected by the selector, and a third heat exchanger to effect transfer of heat between the third controller and the third heat exchanger.
Specification