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JP2006329445 |
To provide a natural refrigerant heat pump system improved in economic efficiency and operability.In this natural refrigerant heat pump having a cycle for sending a natural refrigerant such as CO2 evaporated by an evaporator 11 to a heat...
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JP2006329452 |
To provide a carbon dioxide heat pump cooling/heating system capable of arbitrarily switching each of cooling, heating and hot water supply operations and achieving sufficient cooling capacity in the cooling operation.This carbon dioxide...
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JP3886469 |
To provide an in-situ concrete pile having problem-free strength, allowing easy embedding of a heat medium circulation pipe deeply into a ground to utilize geothermy at low cost while saving construction cost. The heat medium circulation...
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JP3883184 |
To securely operate a heat pump type heat collector to re-boil even if temperature of the hot water inside of a hot water reservoir is lowered by natural heat radiation when a hot water supply device is not used for a long time. When thi...
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JP2006317038 |
To provide a heat pump type water heater capable of solving problems in a conventional device, and quickly restarting an operation immediately after termination of defrosting operation.This heat pump type water heater comprises a heat pu...
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JP3879636 |
To reduce an installation space and capacitance in a water heater using a heat pump as a heat source. This water heater 1 has a first refrigerant circuit 11, a second refrigerant circuit 9, a first heat accumulating unit 39, a second hea...
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JP2006313034 |
To provide a geothermal unit efficiently operable and capable of reducing cost by improving workability.A soil heat exchanger 2 is connected to a heat pump 3 through a primary cooling medium pipe arrangement 5, and heat is supplied to th...
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JP3876658 |
To solve the problem of a heat pump bath hot water supply system that since an operation for heating supply hot water with refrigerant using the heat of bathtub water as the heat source of heat pump cycle is performed depending on the re...
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JP3876911 |
To prevent lowering of COP (coefficient of performance) of a refrigerant circuit by performing proper cooling treatment on water for hot water storage in a hot water storage tank without affected by outdoor air temperature, in a water he...
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JP3877207 |
To provide a hot-water supply for CO2 refrigerating cycle effectively using an oil cooler provided for preventing over-heating of lubricating oil; providing the oil cooler adjacent to a gas cooler; certainly and efficiently cooling sensi...
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JP2006308164 |
To provide a steam supply system of high energy efficiency.This steam supply system 10 comprises a boiler 20 having a combustion portion and a heat pump 30, and uses the heat pump 30 for heating of a comparatively low-temperature zone to...
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JP3870963 |
To provide a heat pump hot water supply machine, reducing the time required until the temperature of hot water becomes stable after the hot water is supplied, which occurs in the case of a hot water supply machine having a small space re...
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JP3870317 |
To provide a heat exchanging device for an underground wall which inexpensively and efficiently utilizes underground heat by using the underground wall which is no longer necessary after construction for soil retention and water shutoff....
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JP3870841 |
To restrict an increase in the number of part items of a water heater, and to restrict an increase in installation man-hours due to the increased number of part items. A first tube 12a wherein the coolant flows, a second tube 12b arrange...
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JP2006292310 |
To provide a geothermal heat pump device stably operable over a long time adaptedly to a thermal situation of the ground, and to provide its control method.A limit value of heat collection and heat radiation is set based on the outlet te...
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JP2006292313 |
To efficiently operate a geothermal unit, to improve the construction property, and to reduce the cost.In an air conditioner (geothermal unit) 1, a heat pump 3 is connected to an indoor air-conditioning unit 4 through a refrigerant pipe ...
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JP2006292281 |
To provide a heat pump type water heater, capable of preventing the temperature of a mixed fluid from being lower than a target boiling-up temperature in mixing and discharging hot water supplying fluids passed through different boiling-...
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JP3869801 |
To lower a refrigerant temperature to cope with various heating loads even when the heat is not sufficiently radiated in a water refrigerant heat exchanger for supplying hot water or a water refrigerant heat exchanger for heating. This h...
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JP3869798 |
To provide a heat pump type hot water supply heating device capable of coping with both of a case when the storage of hot water of high temperature and the hot-water heating are simultaneously performed or in a case when one of them is p...
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JP2006282865 |
To provide a gas hydrate regasification system capable of efficiently carrying out gas hydrate regasification by using a heat pump.The gas hydrate regasification system having a heat pump is equipped with a gas hydrate storage facility, ...
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JP2006284022 |
To provide a device capable of efficiently applying a geothermal heat pump device even in a cooling load-based area.An air heat exchanger is mounted in addition to an underground heat exchanger. The air heat exchanger is placed on a posi...
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JP3864378 |
To supply hot water by means of a heat pump water heater, while reducing size and weight, improving transportability and constructibility, preventing hot water exhaustion, and increasing energy efficiency. The heat pump water heater comp...
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JP3864768 |
To provide a heat pump type water heater that operates with high COP irrespective of the season and prevents occurrence of a hot water outage. The heat pump type water heater comprises a heat pump unit 2 and a tank unit 3 having a hot wa...
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JP3861845 |
To perform hot water supply and cooling by one refrigerating cycle apparatus. This heat pump type hot water supply apparatus with a cooling function is provided with a second refrigerant circuit R2 branched downstream of a high pressure ...
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JP3861807 |
To provide a water heater A to reduce the standby power requirement in a standby mode. When the outdoor temperature detected by an outdoor temperature sensor 82 exceeds a predetermined value, when the water feed temperature detected by a...
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JP2006266633 |
To further enhance cooling and heating efficiency in an absorption chiller and heater adopting a triple utility cycle.The absorption chiller and heater adopts the triple utility cycle having at least an absorber 81, an evaporator 89, a c...
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JP2006266591 |
To provide a heat pump water heater capable of improving usability by minimizing the influence by lowering of heating capacity caused by frost formation.A temperature of an air heat exchanger is detected, a defrost starting temperature a...
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JP2006266589 |
To provide a heat pump water heater capable of considerably reducing a leakage current ratio when starting heat pump operation in hot water supply in the heat pump water heater equipped with a plurality of compressors.The plurality of co...
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JP2006258406 |
To provide a water cooled heat pump type subterranean heat utilizing air conditioning system capable of controlling temperature in a plurality of spaces to be air-conditioned having different temperature control zones at low cost and of ...
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JP2006258375 |
To provide a heat pump type water heater having high usability by suppressing rise of pressure of a cooling medium circuit even when pressure loss of a water circuit of a hot-water supply machine is increased.This heat pump type water he...
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JP3855902 |
To provide a heat pump type hot water supply machine, preventing excessive hot water heating capacity and insufficient hot water heating capacity even if the environment condition such as outside air temperature changes, operated at a pr...
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JP3855795 |
To provide a heat pump type hot water supply unit having improved energy saving efficiency by always operating in maximum efficiency. This heat pump type hot water supply unit is equipped with a temperature detector 15 provided on an out...
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JP3857221 |
To provide a heat pump type hot-water supply and heating apparatus capable of effectively utilizing energy by using hot water at the inner bottom part of a hot water storage tank even in the normal mode for heating. A return water temper...
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JP3855985 |
To provide a heat pump hot-water supply device capable of preventing the running-out of hot water and having high operation efficiency. The running-out of hot water can be prevented and the operation efficiency of a heat pump water suppl...
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JP3858015 |
To provide an energy saving water heater improving air conditioning performance of a CO2 refrigerant which is inferior to performance of other refrigerants when used for air conditioning at high outside air temperature, and using exhaust...
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JP3855695 |
To obtain a high efficiency high temperature heat pump hot water supply apparatus. The heat pump hot water supply apparatus comprises a heat pump cycle comprising a compressor 1, a radiator 2, a pressure reducer 3, an air heat exchanger ...
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JP3849577 |
To provide a heat pump bath hot water supply system for improving the durability and the operation efficiency in a hot water storage type heat pump bath hot water supply system. This heat pump bath hot water supply system is provided wit...
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JP3851846 |
To lower heat energy required for storing hot water in a hot water tank for saving energy. This hot water supplying heat source device is provided with a heating type circulation means, which passes hot water taken out of the bottom part...
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JP3851847 |
To improve efficiency while saving energy by using unnecessary heat of a heat source means for storing hot water in a hot water tank. This device is provided with the heat source means operating heat supply operation, a hot water storage...
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JP2006234376 |
To provide a heating and cooling system allowing simultaneous operations for heating and cooling, using a geothermal source, capable of carrying out simultaneously or separately the cooling operation and the heating operation.A heating a...
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JP2006234340 |
To provide a heat transfer tube for underground heat exchange capable of reducing equipment costs and pump power costs by improving heat exchanging efficiency and shortening a length of the heat transfer tube, reducing a time and costs f...
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JP3847010 |
To make a decision easily whether an abnormal state is present in a heat exchanger or not by providing a pair of conduction stopping means, respectively, on the upstream side and downstream side of a heat exchanger in a hot water conduct...
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JP2006226627 |
To provide a water cooled heat pump type subterranean heat-utilizing air conditioning system capable of reducing costs by avoiding waste of facilities and operation.A water cooled heat pump type air conditioner 3 carrying out air supply ...
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JP2006220375 |
To reduce time and electric power required for drying in a heat pump type dryer.In this dryer equipped with a heat pump device in which a refrigerant is circulated through an compressor 12, a radiator 18, an expansion mechanism 13, and a...
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JP3841003 |
To provide a heat pump-type water heater and a boil-up control method for the same capable of preventing the run-out of hot water in case when the amount of hot water used in the previous day is extremely smaller than the amount of the h...
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JP3842170 |
To provide a heat pump hot water supply system for improving a coefficient of performance (COP) of a heat pump unit by improving the operation efficiency of the heat pump unit. This heat pump hot water supply system is provided with: a b...
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JP3840573 |
To provide a heat pump type hot water supply device which keeps capacity and COP in reheating of bath tub water in a high level, and reduces running cost. This hot water supply device is equipped with: a hot water storage tank 3; a circu...
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JP2006214626 |
To provide absorbent for a refrigerator capable of dispensing with dilution operation when stopping in the absorption refrigerator.This absorbent for the absorption refrigerator includes alkali metal acetate aqueous solution as a main co...
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JP2006207882 |
To provide an absorption heat pump, generating steam from hot water, which can be transferred by an existing steam piping.This absorption heat pump 101 includes: an absorbing part A having a heated side A1 for introducing a fluid W1 to b...
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JP2006207883 |
To provide an absorption heat pump, generating a flow of coolant liquid, in which the coolant liquid is transferred to an evaporating part and a flow of coolant liquid, in which the coolant liquid is taken out of the evaporating part and...
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