Patent application number | Description | Published |
20080214447 | Cyclic Peptide Compound - A cyclic peptide compound of the following general formula (I): Wherein R | 09-04-2008 |
20090199581 | HEAT PUMP WATER HEATER OUTDOOR UNIT AND HEAT PUMP WATER HEATER - To provide a heat pump water heater outdoor unit and heat pump water heater capable of preventing reduction in heating/hot water supply ability even at a low ambient temperature. A heat pump water heater outdoor unit, in which a compressor, a water heat exchanger, a first expansion valve, and an air heat exchanger are connected with piping, includes a first internal heat exchanger provided between the water heat exchanger and the first expansion valve and used for heat exchange between a refrigerant flowing between the water heat exchanger and the first expansion valve and a refrigerant flowing between the air heat exchanger and the compressor, an injection circuit branching off at a point between the first internal heat exchanger and the first expansion valve and to inject the refrigerant into the compressor through a second expansion valve; and a second internal heat exchanger for heat exchange between the refrigerant flowing between the first internal heat exchanger and the first expansion valve and the refrigerant flowing between the second expansion valve and the compressor in the injection circuit. | 08-13-2009 |
20090241569 | HEAT PUMP TYPE HOT WATER SUPPLY OUTDOOR APPARATUS - A heat pump type hot water supply outdoor apparatus, in a compressor, a water heat exchanger, a first expansion valve, a medium pressure receiver, a second expansion valve, and an air heat exchanger are connected circularly, has an injection circuit, which is a bypass for a part of the refrigerant between the medium pressure receiver and the second pressure reduction unit, to inject the part of refrigerant into a compression chamber of the compressor, and has a third expansion valve and an internal heat exchanger for carrying out heat exchange between the refrigerant whose pressure is reduced by the third expansion valve and the refrigerant between the medium pressure receiver and the second expansion valve, a pressure detection sensor for detecting a condensing pressure, and a controller for starting an injection control by the third expansion valve at the time when the condensing pressure detected by the pressure sensor or the condensing temperature calculated from the condensing pressure becomes a first predetermined value or more and stopping the injection control at the time when the condensing pressure or the condensing temperature becomes a second predetermined value which is smaller than the first predetermined value, or less. With this arrangement, an appropriate injection control can be realized and a high hot water supply/heating capability operation can be carried out. | 10-01-2009 |
20110079040 | REFRIGERATING CYCLE DEVICE AND AIR CONDITIONER - A compressor | 04-07-2011 |
20110132019 | HEAT PUMP APPARATUS - A heat pump apparatus includes a refrigerant circuit in which a compressor, a condenser, expansion means, and an evaporator are serially connected. Condensation temperature detection means that detects a saturation temperature of the condenser, and evaporation temperature detection means that detects the saturation temperature of the evaporator are provided. Operation efficiency is estimated by a value obtained by dividing heating ability estimated from a detection value of the condensation temperature detection means by a difference between a detection value of condensation temperature detection means and that of evaporation temperature detection means or dissipation power estimated by the difference. | 06-09-2011 |
20110315093 | FLUID HEATING SYSTEM, FLUID HEATING METHOD, FLUID HEATING CONTROL SYSTEM, CONTROL APPARATUS, AND CONTROL METHOD - When using a plurality of heaters such as heat pump units, capacity is properly distributed according to the required capacity, thereby enabling highly efficient operation of a hot water system. To achieve this, a control apparatus determines the heating capacity of each of the heat pump units in a way that the total heating capacity of the heat pump units reaches the heating capacity required in the hot water system as a whole, and further in a way that the total COP (coefficient of performance) of the heat pump units satisfies predetermined condition. The control apparatus controls each of regulating valves in a way that the heating capacity of each of the heat pump units reaches the above determined heating capacity. | 12-29-2011 |
20120018129 | TEMPERATURE ADJUSTING APPARATUS, FLUID SUPPLY SYSTEM, HEATING SYSTEM, INSTALLATION METHOD OF TEMPERATURE ADJUSTING APPARATUS, AND FLUID SUPPLY METHOD - It is aimed to simultaneously supply hot water at a required temperature to a high-temperature heating appliance and hot water at a required temperature to a low-temperature heating appliance, the low-temperature heating appliance requiring hot water at a temperature lower than a temperature required by the high-temperature heating appliance, and to enhance efficiency by collecting surplus heat when the temperature of the hot water to be supplied to the low-temperature heating appliance is adjusted. A pipe through which flows the hot water at a high temperature to be supplied to the high-temperature heating appliance is branched into a first supply pipe and a second supply pipe. Heat exchange is effected between the hot water flowing through the first supply pipe and return water which has been supplied to a first appliance. The first supply pipe and the second supply pipe are joined again, so that the hot water which has flowed through the first supply pipe and the hot water which has flowed through the second supply pipe are mixed and supplied to the low-temperature heating appliance. | 01-26-2012 |
20120055178 | HEAT PUMP APPARATUS AND METHOD FOR CONTROLLING REGULATING VALVE - It is aimed to provide a heat pump type hot-water supply outdoor apparatus that can control a temperature of a compressor shell, according to a water temperature of a water circuit and a temperature of the compressor. A heat pump type hot-water supply outdoor apparatus includes a refrigeration cycle including a compressor, a water-refrigerant heat exchanger, an expansion valve, and an air heat exchanger, a water jacket that is arranged on the shell of the compressor and connected in the middle of a branch water circuit branching in parallel to a main water circuit which starts from a hot water storage tank and returns to the hot water storage tank through a water-refrigerant heat exchanger, a water flow valve that is connected between a branch and the water jacket and regulates the quantity of water flow, according to a control signal, a shell temperature detection sensor that senses a temperature of the shell of the compressor, a water temperature sensor that is installed in the vicinity of the branch and senses a temperature of the water flowing out of the hot water storage tank, and a control apparatus that generates a control signal for controlling the water flow valve, based on the temperature sensed by the shell temperature detection sensor and the temperature sensed by the water temperature sensor, and outputs it to the water flow valve. | 03-08-2012 |
20120111042 | HEAT PUMP APPARATUS - In a heat pump apparatus, it is aimed to enhance efficiency of a defrost operation by reducing a loss of heat radiation during the defrost operation and reducing a compressor input during the defrost operation. The heat pump apparatus includes a main refrigerant circuit in which a compressor, a first heat exchanger, an expansion mechanism, and a second heat exchanger are connected sequentially, and also includes a bypass circuit including an on-off valve and providing a connection by bypassing the expansion mechanism. The main refrigerant circuit includes a four-way valve that switches between a heating operation and the defrost operation by switching an order in which the refrigerant circulates through the main refrigerant circuit. The main refrigerant circuit also includes a first temperature detection unit and a second temperature detection unit. Based on values detected by these temperature detection units, a degree of superheat of the first heat exchanger during the defrost operation is computed. When the heating operation is switched to the defrost operation, the heat pump apparatus increases a circulation amount of the refrigerant circulating through the refrigerant circuit by opening the on-off valve, and also controls an operation frequency of the compressor such that the degree of superheat is at a predetermined target value. | 05-10-2012 |