Denso Corporation

Nippondenso Co., Ltd.

Kabushiki Kaisha Toyota Chuo Kenkyusho

Kabushiki Kaisha Toyota Chuo Kenkyusho Nippondenso Co., Ltd.

Hisashi Tanaka

Hikaru Sugi

Yuichi Shirota

Manabu Miyata

Koji Ito

Kazushi Shikata

Yukio Uemura

Teruhiko Kameoka

Hiroshi Nonoyama

Hiroki Matsuo

Haruki Ikuta

Yousuke Taniguchi

Masami Konaka

Seiji Miwa

Kazushi Yamamoto

Motohiro Kitada

Tadayuki Miyawaki

Yasushi Yamanaka

Koichi Ito

Takashi Yamamoto

Yasuhiko Niimi

Tomohiro Kamiya

Yasuyuki Nishi

Tetsuji Nobuta

Yoshinori Yanagimachi

Kazuya Murata

Shinji Naruse

Makoto Uto

Kauya Nakagawa

An air conditioner for a vehicle is provided with an air conditioning unit for blowing conditioned air to a passenger compartment of the vehicle, multiple seat air conditioning units for respectively controlling temperatures of seats of the vehicle, and a control unit for controlling the air conditioning unit and the seat air conditioning units. The larger the difference between a target blowing-out temperature of the air conditioning unit and a compartment setting temperature of the passenger compartment, the larger the degree of influence of the target blowing-out temperature on a seat target blowing-out temperature in the calculation of the seat target blowing-out temperature, based on which the seat air conditioning unit is controlled.

Vehicle air conditioner

A vehicle air conditioner includes an air conditioning case, a blower fan for blowing conditioned air into a passenger compartment, and an evaporator disposed in the air conditioning case. The air conditioning case has a cooling opening upstream from the evaporator, so that at least inside air is blown by the blower fan to vehicle electronic units through the cooling opening. Thus, heat radiation of the electronic units can be facilitated by air blown from the blower fan. Further, because at least inside air, without being cooled by the evaporator, is blown to the electronic units, the electronic units can be prevented from being excessively cooled. Accordingly, it can restrict the surface temperature of the electronic units from reducing less than a dew point, thereby effectively reducing condensed water on the electronic units.

Cooling structure for cooling vehicle electronic unit

An automotive air conditioner includes an offset blower for blowing an air, an evaporator is centrally disposed within a dashboard and receives the air from below, and a heater approximately horizontally disposed above the evaporator. The evaporator inclines downward along the direction of the air flow. A plurality of condensed water guide plates are provided under the evaporator so as to allow a condensed water smoothly flow on the surface of each guide plate and is discharged from the evaporator through a condensed water drain pipe.

Automotive air conditioner

In a vehicle air conditioner, a blower case for accommodating a blower is connected to an air conditioning case for accommodating an evaporator and the like by a connection duct made of a vibration-absorption material. Therefore, a vibration, transmitted from the blower case to the air conditioning case, can be effectively absorbed by the connection duct, thereby reducing the vibration transmitted from the air conditioning case to a steering wheel unit through a supporting member.

Vehicle air conditioner and mounting structure

An automotive air conditioner comprises an offset blower for blowing an air, an evaporator is centrally disposed within a dashboard and receives the air from below, and a heater approximately horizontally disposed above the evaporator. The evaporator inclines downward along the direction of the air flow. A plurality of condensed water guide plates are provided under the evaporator so as to allow a condensed water smoothly flow on the surface of each guide plate and is discharged from the evaporator through a condensed water drain pipe.

A main evaporator cools a driver's compartment of a vehicle while a cooling storage evaporator cools cooling storage packs that are used in cooling a sleeping compartment. Refrigerant is supplied to the main evaporator at the actuation of a first solenoid valve while refrigerant is supplied to the cooling storage evaporator at the actuation of a second solenoid valve. If a first switch is being actuated after the completion of the cooling storage operation of the cooling storage evaporator on the cooling storage packs and the temperature of the cooling storage packs is no more than a preset temperature, for example, -5.degree. C., FIR control is performed for alternately actuating the first solenoid valve and the second solenoid valve based on a predetermined time ratio (for example, 10 minutes 15 seconds).

Vehicular air conditioning apparatus for effectively cooling a main

A refrigerating cycle apparatus for averting shortages of its refrigerant in a refrigerating cycle and of oil reflux regardless of fluctuations in the progress of freezing in a cold accumulating material. In operation, two solenoid valves are opened and a compressor is activated. The activated compressor causes stagnant refrigerant inside a cold accumulating evaporator to be collected into a receiver. Thereafter, one solenoid valve is closed to let the refrigerant flow only to the cold accumulating evaporator. This makes it possible to circumvent shortages of the refrigerant in the refrigerating cycle and of oil reflux irrespective of varying progress in the freezing status of the cold accumulating material.

Refrigerating cycle apparatus

An inside air/outside air switching case employing a rotary door, since an introduced air flows along an inner surface of a circumferential wall of the rotary door, an air flow guiding portion constructed of a plurality of protruding portions formed in a corrugated shape of concavities and convexities is formed on an inner surface of the circumferential wall of the rotary door. In this way, the air flow directed toward a suction inlet is made uniform by means of the guiding portion, and the air flow noise can be suppressed.

Air conditioner for vehicle

A desiccant tank storing desiccant is accommodated in a thermal insulation case, and a desiccant tank-side ventilation duct is formed between the desiccant tank and the thermal insulation case. Ventilation path change-over dampers are provided to switch a ventilation path of the desiccant tank-side ventilation duct to an interior heat release operation path or an exterior heat release operation path. A thermal insulation case accommodates a water tank storing water therein and connected with the desiccant tank through a connection pipe without using valves. A water tank-side ventilation duct is formed between the water tank and the thermal insulation case. Ventilation path change-over dampers are provided to switch a ventilation path of the water tank-side ventilation duct to an interior heat absorption/radiation operation path or an exterior heat absorption/radiation operation path.

Adsorption type air conditioning using adsorbent and liquid refrigerant

An evaporator is disposed substantially horizontally at a central portion of an instrument panel in a passenger compartment, and air is blown, by a blower disposed so as to be shifted from the center of the evaporator, so as to flow through the evaporator from the bottom to the top. A heater core is disposed substantially horizontally above the evaporator, and an air outlet mode switching portion for switching an air outlet direction of air, temperature of which is adjusted by the heater core, is disposed above the heater core. Foot air ducts are provided to supply conditioned air, a flow direction of which has been switched by the air outlet mode switching portion, to foot air outlets opening to a foot area of the passenger, and passage portions passing through an outlet side path of a scroll casing of the blower are provided in the foot air duct. In this way, it is possible to reduce the space where the heat exchanger portion is installed.

Air conditioning apparatus for a vehicle

A heat regenerating type cooling apparatus includes a heat regenerating evaporator encased in a case and provided with a tube for a cooling medium and a heat regenerating pack arranged to be in close contact with the outer surface of the tube of the heat regenerating evaporator. The heat regenerating evaporator conducts a refrigeration cycle while a vehicle is running and cools the heat regenerating pack so as to cause a heat regenerating material within the pack to freeze When the vehicle is parked, a blower is operated to cause a current of air that is cooled by the heat regenerating pack due to heat exchange between the current of air and the frozen heat regenerating material in the heat regenerating pack. The cold air is blown out into an objective cooling area, such as a sleeping area of the vehicle, from a blowing port so that the objective cooling area is air-conditioned, and the upper half of the body of a sleeping person in the area is effectively exposed to air-conditioned air.

Heat regenerating type cooling apparatus

The temperature and velocity of a wind blown from an air-conditioner are controlled in such a manner that a temperature sensation value TS expressed by the following formula becomes a targeted temperature sensation value by using facial skin temperature t.sub.SK and a rate of change in the facial skin temperature, t'.sub.SK : TS=A(t.sub.SK -B)+Ct'.sub.SK, where A is a coefficient in the range of 0.4-1.0; B is a coefficient in the range of 32.8-35.0; and C is a coefficient in the range of 10.0-85.0.

Control apparatus for air-conditioner

A control apparatus for an air-conditioner provided with a flow controlling means which controls the amount of air blown into a room, a temperature control means to which controls the temperature of air blown, a skin temperature detecting means which detects the actual skin temperature of persons in the room, a temperature sensation determining means which determines the actual temperature sensation of persons in the room in accordance with the skin temperature detected above and the rate of change of this detected skin temperature, and an electrical control means which makes the flow control means bring the temperature sensation determined above into line with the target temperature sensation and which makes the temperature control means perform temperature control.

Control apparatus for air-conditioning

A refrigerant apparatus having a compressor, a condenser, a first expansion valve means, a gas-liquid separator, a second expansion valve means and an evaporator. The compressor has a plurality of cylinders one of which is connected with the gas phase of the gas-liquid separator in order to inject the gas coolant into the compressor, other cylinders of the compressor being connected to the evaporator in order to suck the coolant from the evaporator. Since the gas coolant within the gas-liquid separator is injected into the compressor, the cooling capacity of the coolant passing through the evaporator can be expanded so that the cooling capacity of the present invention is increased. Though the gas coolant within the gas-liquid separator which includes no lubricant is sucked toward the compressor, the compressor can be lubricated by the lubricant coolant effectively, because the same compressor sucks the coolant containing lubricant from the evaporator.

Growing community of inventors

Anjo, Japan

Hisashi Tanaka