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US 12,565,298 B2Granted
Reduction and reversing gear unit
AssigneeKanzaki Kokyukoki Mfg. Co., Ltd.
InventorsTomoyuki Ebihara, Shigeaki Nakagawa
Life of this patent
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AssigneeKanzaki Kokyukoki Mfg. Co., Ltd.
InventorsTomoyuki Ebihara, Shigeaki Nakagawa
Estimating the term…
[Problem] In a reduction and reversing gear unit in which hydraulic oil is supplied to a generator motor or the like as cooling oil by a hydraulic pump driven by an electric motor, which is separate from the generator motor, a problem of a noise generated by fully driving the hydraulic pump and the electric motor at all time is solved by assuming a high hydraulic oil temperature when a maximum load acts on the generator motor. [Solution] A reduction and reversing gear unit of the present invention includes an oil cooler disposed in a cooling oil passage that supplies hydraulic oil from an oil tank to a generator motor as cooling oil, a refrigerant pump disposed in a refrigerant piping caused to communicate with the oil cooler, an electric motor that drives the refrigerant pump, and a control unit that controls drive of the electric motor such that a discharge amount of the refrigerant pump is changed in accordance with a load detection value It of a load detection unit that detects a load acting on the generator motor.
A reduction and reversing gear unit transmitting power of at least either one of an engine and a generator motor mounted on a ship to a propeller via a forward/reverse rotation mechanism, comprising:
A reduction and reversing gear unit transmitting power of at least either one of an engine and a generator motor mounted on a ship to a propeller via a forward/reverse rotation mechanism, comprising:
A reduction and reversing gear unit transmitting power of at least either one of an engine and a generator motor mounted on a ship to a propeller via a forward/reverse rotation mechanism, comprising:
Dependencies are inferred from the claim text.