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US 12,191,231 B2Granted
Rotary machine with electric motor and impeller
OwnerShun Nakayama, Yuji Sasakiinventors
Life of this patent
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Abstract
A rotary machine includes an electric motor, an impeller to be rotated by driving the electric motor and suck in and compress a gas, and a housing that houses the impeller and includes a suction port for the gas. The rotary machine further includes heat dissipation fins provided on the housing and disposed to be heat-exchangeable with the gas passing through the suction port, and an inverter connected to the housing and that controls the electric motor.
Claims18
A rotary machine comprising:
- an electric motor;
- an impeller to be rotated by driving the electric motor in order to suck in and compress a gas;
- a housing that houses the impeller and includes a suction port for the gas;
- heat dissipation fins provided on the housing and disposed to be heat-exchangeable with the gas passing through the suction port;
- and
- an inverter connected to the housing and that controls the electric motor, wherein the inverter is annular and surrounds the suction port.
3 more elements
A rotary machine comprising:
- an electric motor;
- an impeller to be rotated by driving the electric motor in order to suck in and compress a gas;
- an impeller casing that houses the impeller;
- a tubular portion connected to the impeller casing to form a suction port for the gas;
- an annular shaped inverter that controls the electric motor;
- and
- a heat dissipation fin that protrudes from an inner circumferential surface of the tubular portion and is disposed in a flow path for the gas,
- wherein the inverter is located on an outer circumferential surface of the tubular portion opposite to the heat dissipation fin, so that the inverter surrounds the tubular portion.
5 more elements
A rotary machine comprising:
- an electric motor;
- an impeller to be rotated by driving the electric motor;
- an impeller casing that houses the impeller and includes an internal flow path;
- a suction port fluidly coupled with the internal flow path;
- an annular shaped inverter that controls the electric motor and surrounds the suction port;
- and
- a heat dissipation fin located in the suction port to be heat-exchangeable with a gas passing through the internal flow path.
4 more elements
Dependencies are inferred from the claim text.