Kabushiki Kaisha Toyoda Jidoshokki Seisakusho

Denso Corporation

Other

Toyota Jidosha Kabushiki Kaisha

Kabushiki Kaisha Toyota Jidoshokki

Nhk Spring Co., Ltd.

Kabushiki Kaisha Toyoda

Denso Corporation Kariya

Takashi Ban

Hidefumi Mori

Takahiro Moroi

Kiyoshi Yagi

Tatsuya Hirose

Shigeru Suzuki

Tatsuyuki Hoshino

Takanori Okabe

Nobuaki Hoshino

Kenji Takenaka

Toshiro Fujii

Toshio Morikawa

Tetsuhiko Fukanuma

Yoshiyuki Nakane

Shinji Aoki

Hajime Ito

Masahiko Kimbara

Masahiko Okada

Takahisa Ban

Fumihiko Kitani

Tsutomu Sato

Hidehito Kubo

Kunifumi Goto

Ryuta Kawaguchi

Hirohisa Katoh

Shinichi Suzuki

Tetsuo Yoshida

Toshiro Higuchi

Takayuki Imai

Kazuhiko Minami

Goro Uchida

Yasushi Kato

Shintaro Miura

Toshihiro Oshima

Yukiharu Yusa

Shinya Yamamoto

Naoya Yokomachi

Yoshimitsu Inoue

Hikaru Sugi

Tatsuya Koide

Shin Nishida

Tatsushi Mori

Shozo Nakayama

Masato Sowa

Yuji Izumi

Mitsukane Inagaki

Yuya Izawa

Takamitsu Mukai

Ken Suzuki

Akira Umebayashi

Yasuhiro Fujiwara

Norifumi Ban

Katsumi Yamashita

Taku Yamamoto

Sigeru Suzuki

Shozo Tatematsu

Yasunaka Hanaoka

Akira Imura

Yagi Kiyoshi

A roots type fluid machine includes a case having a side wall, a pair of rotary shafts provided in the case, a pair of rotors engaged with each other and fixed to the pair of rotary shafts so as to extend axially, respectively, a suction space formed by the case and the pair of rotors for introducing fluid, a discharge space formed by the case for discharging fluid and the pair of rotors and a transfer chamber formed by the case and the rotor. The rotor has a rotor end surface. A clearance is formed between the side wall and the rotor end surface. The transfer chamber transfers gas introduced in the suction space to the discharge space in accordance with the rotation of the pair of rotors. The case has a guide groove formed in the side wall facing the rotor end surface. Gas leaked from the discharge space into the clearance is introduced to the transfer chamber through the guide groove.

Roots fluid machine with reduced gas leakage

An air supply system for a fuel cell is disclosed, in which a compression chamber ( ) of an air supply mechanism (GS) is adapted to supply air to a fuel cell (FC). A liquefaction unit ( ) acting as a water supply mechanism (WS) supplies water to the air supply mechanism (GS) to seal and cool the compression chamber ( ). The liquefaction chamber ( ) separates water from the exhaust gas discharged from the fuel cell (FC) and supplies the water to the air supply mechanism (GS). The air supply mechanism (GS) and the liquefaction unit ( ) are integrated with each other.

Air supply system for fuel cell

A compression regenerative machine for a fuel cell according to the present invention comprises a displacement type compression mechanism portion C connected to an oxygen-containing gas supply side of a fuel cell F, and a displacement type regenerative mechanism portion E connected to an exhaust discharge side of the fuel cell F. A confined compression chamber defined by the compression mechanism portion C and a confined regenerative chamber defined by the regenerative mechanism portion E have a capacity ratio of 1.25 to 3.

Compression regenerative machine for fuel cell

A fuel cell system having a fuel cell, a gas compressor arranged to compress process air and connected to the fuel cell via an air-supply line to supply the compressed process air, a recovery unit connected to the fuel cell via an exhaust gas line, a liquid-gas separating unit arranged in the exhaust gas line to separate produced water from an exhaust gas and to store the separated produced water in a water storing vessel portion thereof, and a water-supply line extending from the bottom of the water storing vessel portion to a water-supply port provided for the gas compressor to supply the gas compressor with the produced water under the pressure of the exhaust gas applied to the produced water stored in the water storing vessel.

Apparatus for regulating humidity of process air in fuel cell system

To make it possible to provide high quality heating or warming with low environmental pollution for a low environmental pollution vehicle such as an electric vehicle or a hybrid vehicle, an automotive air-conditioning apparatus has a hot water circuit that includes a hot water heater (heat source unit), a hot water circulating pump and a heater core to thereby perform a heating operation for heating passenger compartment air wherein, an electric motor is excited under the condition that the rotation thereof is fixed to thereby generate heat in the electric motor. The generated heat is utilized as a heat source for the hot water heater. The restricting mechanism may include two electric motors which are rotated in opposite directions to each other or a lock mechanism. Also, a cooling operation for cooling the passenger compartment air may be performed by driving the compressor (heat source unit) with the electric motors, a dehumidifying operation may be performed by simultaneously effecting the heating and cooling operations, or a heat pump type heating operation may be performed by having the refrigerant circuit acting reversibly.

Automotive air-conditioning apparatus

A fuel cell system includes a fuel cell, a motor, a scroll type compressor, connected to the air feeding pipe of the fuel cell and a scroll type regenerator connected to the air exhaust pipe of the fuel cell. The movable scrolls of the compressor and the regenerator are coupled to opposite ends of the motor output shaft in symmetry with each other. A pressure ratio of the regenerator is selected to be smaller than that of the compressor by an amount corresponding to a pressure loss of the exhaust gas across the fuel cell, so that the rotation of the regenerator never transmits a negative torque to the motor output shaft MC. Therefore, the regenerator can efficiently provide power assistance to the compressor.

Fuel cell system having scroll type compressor and regenerator

A fuel cell system including a fuel cell having an air feeding tube, an air discharging tube and a fuel feeding tube, the air discharged from the fuel cell through the air discharging tube containing water. The system also includes a compressor, a water separation tank, and a water supply passage for supplying water collected in the water separation tank to the compressor. When the system is to be stopped, the water supply passage is first blocked while the compressor is operating. The humidity or the temperature of the process air is then detected, and the compressor is stopped when the detected humidity is lower than a predetermined value, or when the detected temperature is higher than a predetermined value.

Method for preventing compressor from freezing in automobile fuel cell system

A fuel cell system includes a fuel cell, a motor, a scroll type compressor connected to the air feeding pipe of the fuel cell and a scroll type regenerator connected to the air exhaust pipe of the fuel cell. The compressor and the regenerator share a movable scroll which is operatively coupled to the motor output shaft. The movable scroll has a common base plate, a first scrolling wall arranged on one side of the common base plate to engage with a scrolling wall of a stationary scroll of the compressor, and a second scrolling wall arranged on the other side of the common base plate to engage with a scrolling wall of a stationary scroll of the regenerator. This arrangement simplifies the structure and facilitates power assistance to the compressor.

Fuel cell system having common scroll type compressor and regenerator

Fuel cell apparatus

An air conditioning system includes an compressor,having a driving chamber,a suction port,and a discharge port,a first passage,that connects the discharge port,to the driving chamber,by opening a capacity control valve,a second passage,that connects the driving chamber,to the suction port,and a driving means,that can change the output discharge capacity of the compressor by changing the pressure in the driving chamber,The refrigerant can be released from the driving chamber,to the suction port,separately from the second passage,if the driving chamber reaches a predetermined high-pressure state. In such an air conditioning system, abnormally high pressure problems are overcome that utilizes a hot gas bypass heater. In particular, heating performance is improved, because high pressure refrigerant is not released from the hot gas bypass heater circuit into the cooling circuit. Further, an excessively high-pressure state in the driving chamber,can be prevented.

Air conditioning system

An air conditioning system,may include a compressor,having a driving chamber,a cooling circuit,a heating circuit,and capacity controllers,The compressor,may have a suction port,a discharge port,a driving unit,provided within the driving chamber,The driving unit,decreases compressor output discharge capacity when pressure within the driving chamber,increases. The first capacity controller,and the second capacity controller,are provided in series onto the capacity control passage,The first capacity controller,opens the capacity control passage,when compressor suction pressure Ps results predetermined low-pressure state during operation of the cooling circuit,and the second capacity controller,opens the capacity control passage,during operation of the cooling circuit. As the result, the heat exchanger,in the cooling circuit,is prevented from being frosted. The first capacity controller,opens the capacity control passage,during operation of the heating circuit,and the second capacity controller,opens the capacity control passage,when compressor discharge pressure Pd results predetermined high-pressure state during operation of the heating circuit,As the result, the heating circuit,is prevented from being damaged by an abnormally high discharge pressure.

Air conditioning systems

An air conditioning system,may include a cooling circuit,, a heating circuit,and a variable displacement compressor,as a driving source for both the heating and cooling circuits and may be utilized in a vehicle-mounted air conditioning system. In such case, the driving shaft,of the compressor,is connected to and driven by a car engine,. In order to decrease the compressor output discharge capacity during an abnormally high pressure state, high-pressure refrigerant in the discharge chamber,is released into the driving chamber,to increase the driving chamber pressure. The high-pressure refrigerant can be released from the discharge chamber,into the driving chamber,utilizing a variety of different structures.

An air conditioning system,may include a compressor,having a driving chamber,, a cooling circuit,, a heating circuit,and a controller,. This system may release high pressure refrigerant from the compressor discharge port,into the compressor driving chamber,by means of the controller,. The controller,may include a selector,, a first refrigerant releasing means,and a second refrigerant releasing means,. The selector,connects the discharge port,and the driving chamber,by both the first and second refrigerant releasing means,when discharge pressure of the refrigerant has reached a predetermined high-pressure state during operation of the heating circuit,. When the discharge pressure of the refrigerant results an abnormal high pressure state during the operation of the heating circuit,, the high pressure refrigerant is released from the discharge port,into the driving chamber,not only by a single refrigerant releasing means,but by double refrigerant releasing means,. Therefore, the high pressure refrigerant can be swiftly released into the driving chamber,to increase the pressure in the driving chamber,and the necessary time for reducing the compressor discharge pressure can be minimized. Thus, the abnormal high discharge pressure can be quickly alleviated.

A hybrid compressor that is selectively driven by an engine and a motor. A compression mechanism includes a drive shaft. A clutch is attached to the front of the compression mechanism, and the motor is attached to the rear of the compression mechanism. The motor has an output shaft connected to the drive shaft. The clutch selectively transmits power from the engine to the drive shaft. This structure makes the hybrid compressor compact and reduces the imbalance of the load applied to its drive shaft.

Dual driven hybrid compressor

A control apparatus and method for controlling an automotive heater apparatus. The heater apparatus includes a coolant circuit for cooling an engine, a coolant circulating through the circuit, a heat generator for transferring heat to the coolant, and a heater core for transferring heat from the coolant. The heat generator houses a viscous fluid and a rotor selectively connected to and disconnected from the engine by a clutch. The clutch connects the engine with the rotor to shear the viscous fluid and generate heat. When the rotating speed of the rotor exceeds a rotor speed limit, which varies in accordance with the detected coolant temperature, the clutch disconnects the rotor of the heat generator from the engine and de-activates the heat generator.

Automotive heater apparatus

Growing community of inventors

Kariya, Japan

Takashi Ban