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US 2025/0084772 A1Published application
Turbine with biased nozzle vane members
AssigneeIHI Corporation
InventorsKenichi SEGAWA, Hayato SHIBAYAMA, Takao ASAKAWA, Kengo IKEDA, Naotoshi SHIMIZU, Taiki YOSHIZAKI, Ryosuke MIYAO
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Abstract
A turbine includes a turbine wheel, a housing having a flow path for a gas, a variable geometry device to guide the gas from the flow path to the turbine wheel, and a biasing member. The variable geometry device includes one or more nozzle vane member, each having a nozzle vane, a nozzle shaft and a nozzle link plate. The biasing member is in contact with the nozzle link plate of the nozzle vane member.
Claims20
A turbine comprising:
- a turbine wheel;
- a housing including a flow path to direct therethrough a gas received from an inlet port;
- a variable geometry device disposed inside the housing, and configured to receive the gas from the flow path and guide the gas to the turbine wheel, the variable geometry device including a disc-shaped nozzle ring having a main surface and a rear surface opposite the main surface, and nozzle vane members including:
- nozzle vanes disposed adjacent to the main surface of the nozzle ring;
- nozzle shafts extending respectively from the nozzle vanes and through the nozzle ring;
- and
- nozzle link plates disposed adjacent to the rear surface of the nozzle ring and connected to distal ends of the nozzle shafts, respectively;
- and
- one or more biasing members in contact with the nozzle link plates, to apply a biasing force in an axial direction of the nozzle shafts, wherein the biasing force urges the nozzle link plates away from the nozzle ring.
6 more elements
A turbine comprising:
- a turbine wheel to rotate around a central axis of the turbine;
- a housing formed around the turbine wheel, the housing including a flow path to convey a gas, and a connecting path extending between the flow path and the turbine wheel;
- a variable geometry device to guide a passage of the gas through the connecting path, wherein the variable geometry device includes:
- a nozzle vane member having a nozzle vane located in the connecting path, a nozzle shaft extending in an axial direction from the nozzle vane, and a nozzle link plate that is rotationally fixed with the nozzle shaft;
- a nozzle ring located between the nozzle vane and the nozzle link plate, wherein the nozzle ring forms a through hole to rotatably accommodate the nozzle shaft;
- and
- a drive support that pivotally supports the nozzle link plate;
- and
- a biasing member that is in contact with the nozzle link plate to urge the nozzle vane member against a contact surface of the nozzle ring.
6 more elements
Dependencies are inferred from the claim text.