Generator-heat pump composite device

Abstract

A generator-heat pump composite device comprises an internal combustion engine, a transmission device, clutches, a heat pump and a generator, wherein the internal combustion engine is connected to the heat pump and the generator via the transmission device and the clutches, respectively. The fuel for the internal combustion engine may be natural gas or biogas, and the heat pump may be a mechanical vapor compression heat pump. When the internal combustion engine is in operation, the heat pump and/or the generator can be selectively driven by engagement or disengagement of the clutches, for selectively generating electricity and/or cold and heat.

1 . A generator-heat pump composite device, comprising an internal combustion engine, a transmission device, a first clutch, a second clutch, a heat pump and a generator, wherein the internal combustion engine is used to generate a mechanical power and is coupled to the transmission device, the transmission device is coupled to the generator via the first clutch and to the heat pump via the second clutch, and the mechanical power is selectively transmitted to the generator and/or the heat pump by disengagement or engagement of the first clutch and the second clutch, for selectively generating electricity and/or cold and heat. 
     
     
         2 . The device as claimed in  claim 1 , wherein the heat pump is a vapor compression heat pump, which consists of a compressor, a condenser, an evaporator and an expansion device. 
     
     
         3 . The device as claimed in  claim 1 , wherein the internal combustion engine is a gas internal combustion engine for which a fuel is selected from gasoline, diesel, alcohol, natural gas or biogas. 
     
     
         4 . The device as claimed in  claim 3 , wherein in the case that the fuel is selected from natural gas or biogas, the fuel for the internal combustion engine is supplied from a gas pipeline or a gas cylinder. 
     
     
         5 . The device as claimed in  claim 1 , further comprising an automatic transfer switch, automatically transferring a power load from a city power to the generator-heat pump composite device or from the generator-heat pump composite device to the city power. 
     
     
         6 . The device as claimed in  claim 2 , wherein the heat pump further comprises a heating fluid loop for circulation of a heat supplying fluid and a cooling fluid loop for circulation of a cold supplying fluid, wherein the heating fluid loop passes through the condenser of the heat pump and exchanges heat with the condenser, and the cooling fluid loop passes through the evaporator of the heat pump and exchanges heat with the evaporator. 
     
     
         7 . The device as claimed in  claim 6 , wherein after the heating fluid loop passes through the condenser, the heating fluid loop is directed to a hot end of the internal combustion engine, so as to re-heat the heat supplying fluid. 
     
     
         8 . The device as claimed in  claim 6 , wherein the heat supplying fluid and the cold supplying fluid are selected from water, air or refrigerant. 
     
     
         9 . The device as claimed in  claim 2 , further comprising a third clutch, wherein the generator is an integrated motor generator, which is capable of functioning as an electric-actuated motor, and when a city power is normally supplied, the compressor of the heat pump is driven by the integrated motor generator functioning as the electric-actuated motor via the third clutch. 
     
     
         10 . The device as claimed in  claim 2 , further comprising a third clutch and an electric-actuated motor for driving the compressor of the heat pump, wherein when a city power is normally supplied, the compressor of the heat pump is driven by the electric-actuated motor via the third clutch. 
     
     
         11 . The device as claimed in  claim 1 , wherein the transmission device adjusts and distributes a mechanical power transmitted to the generator and the heat pump according to loads of the heat pump and/or the generator. 
     
     
         12 . The device as claimed in  claim 1 , wherein the transmission device is selected from a transmission of a gear system, a transmission of a hydraulic system, or a continuously variable transmission (CVT).