US 2020/0049390 A1Published application

Heat pump system

AssigneeYanmar Co., Ltd.

InventorTakayuki IKEDA

Life of this patent

Estimating the term…

Loading patent…

Abstract

A hybrid heat pump system including, as a compressor for a refrigerant circuit, an engine-driven compressor and an electric-motor-driven compressor to achieve a rational structure with redundancy. The hybrid heat pump system further includes an operation control unit and a power source unit. The operation control unit is comprised of an engine control unit controlling the operation of an engine and an electric-motor control unit controlling the operation of an electric motor, which are individually provided. The power source unit converts commercial electric power into operating electric power and supplies the operating electric power to the operation control unit. The power source unit is comprised of an engine-side power source unit supplying the operating electric power to the engine control unit and an electric-motor-side power source unit supplying the operating electric power to the electric-motor control unit, which are individually provided.

Claims4

Dependent claims

A heat pump system comprising:

a compressor for a refrigerant circuit in which a refrigerant circulates, the compressor including an engine-driven compressor configured to be driven by an engine to compress the refrigerant and an electric-motor-driven compressor configured to be driven by an electric motor to compress the refrigerant;
an operation control unit;
and
a power source unit configured to convert commercial electric power into operating electric power and supply the operating electric power to the operation control unit, wherein:
the operation control unit includes an engine control unit configured to control operation of the engine and an electric-motor control unit configured to control operation of the electric motor, and
the power source unit includes an engine-side power source unit configured to supply operating electric power to the engine control unit and an electric-motor-side power source unit configured to supply operating electric power to the electric-motor control unit, the engine-side power source unit and the electric-motor-side power source unit being arranged in parallel.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/494,508Filed 1 Mar 2018
Priority: JP 2017-05100116 Mar 2017
Published: 13 Feb 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

F25B 27/00
Machines, plants or systems, using particular sources of energy
F25B 49/022
For compression type machines, plants or systems: compressor control arrangements
F24F 11/47
Improving electric energy efficiency or saving: responding to energy costs
F24F 11/62
Control or safety arrangements: characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or…