Abstract: Even when the efficiency of a low temperature heat exchanger is raised to reduce the required heat capacity inputting to the absorption refrigerating machine and the temperature of cooling water supplied to an absorber falls suddenly as it is, and thereby the temperature of a diluted absorbent solution falls suddenly, an absorption refrigerating machine without abnormally increasing the temperature of the concentrated absorbent solution and crystallizing the solution is disclosed. A heat recovery device 8 is provided between a low temperature heat exchanger 6 and a high temperature heat exchanger 7 of an absorbent solution pipe 13 for connecting a high temperature regenerator 1 and an absorber 5 with the low temperature heat exchanger 6, the high temperature heat exchanger 7 and an absorbent solution pump 14 therebetween. Further, the heat recovery device 9 is provided between the low temperature heat exchanger 6 and the absorbent solution pump 14.

Abstract: In a wireless remote controller for transmitting a control signal to each of plural control target units to control the operation of each of the control target unit, the power of the control signal to be transmitted to a desired one of the control target units is varied (lowered) in accordance with an operation which is expected to be executed by the desired control target unit. The wireless remote controller and the control target unit are associated with each other in an address connected relationship, and only when a control signal for casing the control target unit to perform a specific operation other than normal operations is transmitted to the control target unit, the address connected relationship is set to an address-free state, and the power of the control signal is varied (lowered) so that the control signal affects only the control target unit.

Abstract: There is provided an automotive air conditioning system, which is free from troubles in traveling itself caused by power consumption in air conditioning means in an automobile having storage means, power generation means for charging the storage means, and air conditioning means having an electric compressor driven by feeding from the storage means.

Abstract: An absorption-refrigerator provided with a mechanism for recuperating heat from the exhaust gas, wherein water vapor contained in the exhaust gas is prevented from condensing even during the starting or partial load operation. An absorption-refrigerator, wherein a first and a second heat recovery systems 23, 24 are installed, an absorption liquid bypass pipe 11B for the diluted absorption liquid exited from the cold heat exchanger 9 flows by bypassing a second+heat recovery system 24, a flow control valve 25 is provided in this absorption liquid bypass pipe 11B, and a controller 27 for controlling the open of a flow control valve 25 is provided so that a predetermined temperature (for instance 100° C.) superior to the dew-point temperature of the exhaust gas is detected continuously by a temperature sensor 26.

Abstract: An object of the invention is to enable heat sources to be surely utilized in accordance with order of priorities and to prevent a overshooting of a temperature of cold water supplied from an evaporator even when a load is immediately changed. A flow of exhaust hot water supplied from a low-temperature heat source supply pipe to a low-temperature water regenerator is forcibly controlled to be the maximum. In such a state, when the cold water temperature measured by a temperature sensor becomes lower than a primary setting value of 7° C., the flow of exhaust hot water supplied from the low-temperature heat source supply pipe to the low-temperature water regenerator is controlled by starting again a PID control using 6° C. lower than the primary setting value of 7° C. as reference. Moreover, a flow of exhaust gas supplied from a high-temperature heat source supply pipe to a high-temperature regenerator is forcibly controlled to be zero.

Abstract: In an air conditioner (10) including an indoor-side chamber (21) containing an indoor heat exchanger (11) and an indoor fan (12), and an outdoor-side chamber (22) containing outdoor heat exchanger (13) and an outdoor fan (14), the indoor-side chamber (21) and the outdoor-side chamber (22) being partitioned by a partition plate (20), the partition plate (2) has a top panel (42) having a ventilation opening portion and a ventilation shutter (49) for opening/closing said ventilation opening portion (48) to freely adjust the opening degree of said ventilation opening portion (48). An indoor fan casing (34) having a heater lower-portion mounting portion (64) located above a drain pan (33) is provided between the indoor fan (12) and the partition plate (20), and an electrical heater (55) is disposed on the heater lower-portion mounting portion (64) so that the electric heater (55) is located above the drain pan (33) through the lower-portion mounting portion (64).

Abstract: The object of the invention is to improve heat efficiency of an absorption refrigerator driven by exhaust heat supplied from the other apparatus as a part of heat sources. A diluted absorption liquid that absorbs a refrigerant in an absorber to decrease in concentration of the absorption liquid is discharged to the absorption liquid pipe and then branched to be supplied to first and second spaces of an exhaust heat regenerator. The diluted absorption liquid is heated by exhaust gas supplied through the exhaust heat supply pipe in each space and concentrated and regenerated for the first time. The absorption liquid concentrated and regenerated in the first space is supplied to a high-temperature regenerator and further heated by a gas burner. The heated absorption liquid is flown into a vapor-liquid separator in a mixed state of vapor and liquid, and then separated into refrigerant vapor and further concentrated absorption liquid.

Abstract: Prevention of the incapability of operation due to crystallization in the absorption solution. When the temperature difference (&Dgr;T) between the temperature of the concentrated absorption solution Tr detected by the temperature sensor (22) and the temperature of crystallization Tc for the concentrated absorption solution at a specified concentration detected by the concentration sensor (21) comes within a prescribed figure, the opening of the heat control valve (20) is decreased by a specified figure, 20% for example. When the concentration of the concentrated absorption solution, which is measured by the concentration sensor (21), exceeds a prescribed figure, 65% for example, the heat supplied to the high temperature regenerator (1) is reduced by decreasing the opening of the heat control valve (20) regardless of the above temperature difference (&Dgr;T).

Abstract: An absorption refrigerator of excellent thermal efficiency where water vapor contained in the exhaust gas does not condenses even at the starting or during the partial load operation where the temperature elevation is small. A refrigerant drain heat collector 11 allowing the refrigerant liquid condensing by heating the intermediate absorption liquid in the low temperature regenerator 3 and flowing into the condenser 4 to exchange heat with a part of dilute absorption liquid and first and second heat collectors 26, 27 where the exhaust gas discharged from the gas burner 2 and the dilute absorption liquid exchange heat are installed and, at the same time, a absorption liquid pipe (absorption liquid branch pipe) 14 is installed, and a flow control valve 28 is installed in the absorption liquid pipe 14 and, furthermore, a controller 30 is installed in order to control the aperture of the flow control valve 28 so that a temperature sensor 29 continues to detect a predetermined temperature (for instance 100° C.