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US 2021/0202974 A1Published application
Fuel cell tie rod isolator
AssigneeDoosan Fuel Cell America, Inc.
InventorsDonald Roy, Eric O'Brien
Life of this patent
Estimating the term…
Abstract
A fuel cell includes a fuel cell stack. A pressure plate is arranged on one side of the fuel cell stack. The pressure plate includes a hole, and a tie rod assembly has a tie rod received in the hole. A nut with a conical surface is secured to the tie rod. An isolator is arranged in the hole between the tie rod assembly and the pressure plate. The isolator has a conical portion, and the conical surface engages the conical portion to provide a conical interface. The tie rod assembly applies a clamp load on the fuel cell stack via the conical interface.
Claims19
A fuel cell comprising:
- a fuel cell stack;
- a pressure plate arranged on one side of the fuel cell stack, wherein the pressure plate includes a hole;
- a tie rod assembly having a tie rod received in the hole, and a nut with a conical surface secured to the tie rod;
- and
- an isolator arranged in the hole between the tie rod assembly and the pressure plate, the isolator including a conical portion, the conical surface engaging the conical portion to provide a conical interface, the tie rod assembly applying a clamp load on the fuel cell stack via the conical interface.
2 more elements
A fuel cell comprising:
- a fuel cell stack;
- a pressure plate arranged on one side of the fuel cell stack, wherein the pressure plate includes a hole;
- and
- a tie rod assembly having a tie rod received in the hole, and a nut with a conical surface secured to the tie rod, the tie rod assembly applying a clamp load on the fuel cell stack via the conical nut.
1 more element
Dependencies are inferred from the claim text.