Kabushiki Kaisha Toyoda Jidoshokki Seisakusho

Kabushiki Kaisha Toyota Jidoshokki

Other

Denso Corporation

Nok Corporation

Kabushiki Kaisha Saginomiya Seisakusho

General Electric Company

Aisin Aw Co., Ltd.

Daimler Ag

Koyo Seiko Company, Ltd.

Eagle Industry Co., Ltd.

Toyota Jidoshokki Seisakusho Kabushiki Kaisha

Masahiro Kawaguchi

Ken Suitou

Masanori Sonobe

Masaki Ota

Kazuya Kimura

Tetsuhiko Fukanuma

Taku Adaniya

Ryo Matsubara

Tomohiko Yokono

Takuya Okuno

Satoshi Umemura

Kenji Takenaka

Tomoji Tarutani

Shinya Yamamoto

Hiroaki Kayukawa

Masakazu Murase

Yasuharu Odachi

Hiroshi Kubo

Yoshihiro Makino

Hiroyuki Nagai

Kazuo Murakami

Masao Iguchi

Norio Uemura

Shigeki Kanzaki

Koji Kawamura

Yasushi Watanabe

Nobuaki Hoshino

Akinobu Kanai

Ichiro Hirata

Tatsushi Mori

Hideki Mizutani

Hirotaka Kurakake

Kiyohiro Yamada

Atsuyuki Morishita

Takayuki Kato

Takahiro Suzuki

Kunifumi Goto

Manabu Sugiura

Shinichi Suzuki

Hiroyuki Nakaima

Kazuhiko Minami

Osamu Hiramatsu

Sokichi Hibino

Kazuhito Miyagawa

Satoru Kuramoto

Takeshi Kawata

Hiroshi Fukasaku

Yoshinori Inoue

Masahiko Okada

Hirohito Hayashi

Yoshio Kimoto

Toshiro Fujii

Hideki Fujiwara

Hiroyuki Yoshida

Jun Kondo

Tatsuya Hirose

Kazuhiro Kuroki

Takahiro Sugioka

Hiroyuki Gennami

Minoru Mera

Hisato Kawamura

Hisakazu Kobayashi

Kazuo Kobayashi

Fuminobu Enokijima

Hideki Higashidozono

Shinji Tsubai

Akio Saiki

Mamoru Kuwahara

Shigeo Fukushima

Kenji Suzuki

Koji Watanabe

Yasushi Yamanaka

Keigo Shirafuji

Naoya Yokomachi

Takahiro Moroi

Tatsuya Koide

Toshiaki Iwa

Kazuaki Iwama

Noriyuki Shintoku

Hisao Kobayashi

Shigeyuki Hidaka

Kazuki Najima

Keiichi Kato

Kazushige Murao

Keiichi Chiba

Michiyasu Nosaka

Seiji Katayama

Masayuki Sugiura

Shinichi Sato

Yasutane Hijikata

Shiro Hayashi

Akira Nakamoto

Tomohiro Wakita

Hajime Kurita

Naofumi Kimura

Hideharu Yamashita

Yuji Hashimoto

Suguru Hirota

Takahiro Hamaoka

Ryosuke Cho

A compressor includes a housing, a compression mechanism, an input shaft rotatable on an axis thereof, an output shaft for driving the compression mechanism, a transmission for transmitting torque from the input shaft to the output shaft and also changing the rotating speed of the input shaft and a control device for controlling the operation of the transmission. The transmission includes a plurality of planetary rollers, a carrier rotatably supporting the respective planetary rollers and being integrally rotatable with the input shaft, a sun roller engaged with the respective planetary rollers and integrally rotatable with the output shaft and a ring roller engaged with the respective planetary rollers. The ring roller can be fixed to the housing or rotatable relative to the housing. The control device includes a one-way clutch allowing the ring roller to rotate only one direction relative to the carrier and a clutch fixing the ring roller to the housing or allowing the ring roller to rotate relative to the housing. The input shaft, the carrier, the respective planetary rollers and the sun roller cooperate to form an assembly that can move as a unit relative to the housing in the direction that is parallel to the axis.

Compressor with transmission

A compressor includes a housing, a compression mechanism, an input shaft rotatable on an axis thereof, an output shaft for driving the compression mechanism, a transmission for transmitting torque from the input shaft to the output shaft and changing the speed of the input shaft and a control device. The transmission is a planetary roller train and includes a plurality of planetary rollers, a carrier, a sun roller and a ring roller. The ring roller includes a first ring engaging the respective planetary rollers and a second ring supporting a one-way clutch. The ring roller can be movable relative to the housing in the direction parallel to the axis. The first ring and the second ring are connected so that the first ring can be displaced in a radial direction, integrally rotatable with the second ring and movable with the second ring in the direction parallel to the axis.

A swash plate compressor capable of realizing an excellent sliding characteristic when a drive shaft is rotated at high speed, and a high refrigerating capacity when the drive shaft is rotated at low speed, has a release passage for communication between a crank chamber and a suction chamber. The release passage includes a first passage communicated to an oil rich region, in the crank chamber, and a second passage communicated to an oil poor region, in which lubricating oil is small in quantity, in the crank chamber. A valve mechanism that increases an opening ratio of the first passage with respect to the release passage, as a rotational speed of a drive shaft increases, and increases an opening ratio of the second passage with respect to the release passage, as the rotational speed of the drive shaft decreases.

Swash plate compressor

A motor-driven compressor includes a housing having an inlet port, a compression mechanism for compression of refrigerant introduced from an external refrigerant circuit via the inlet port into the housing, an inverter having a heat-generating component, an electric motor driven by the inverter, and a rotary shaft rotated by the electric motor thereby to drive the compression mechanism. The electric motor, the compression mechanism and the inverter are aligned in the housing in axial direction of the rotary shaft. An inlet pipe is connected to the inlet port. The housing has an outer peripheral surface in contact with the inlet pipe. The heat-generating component of the inverter is disposed adjacent to or in contact with the inlet pipe so as to be thermally coupled to the inlet pipe.

Motor-driven compressor

A variable displacement type compressor in which a discharge-pressure region, a suction-pressure region and a pressure control chamber are defined, has a tiltable swash plate and a piston reciprocated by the swash plate in the pressure control chamber. The inclination angle of the swash plate and the piston stroke are changed by adjustment of pressure in the pressure control chamber thereby to control the displacement of the compressor. The compressor further comprises a supply passage for supplying refrigerant gas from the discharge-pressure region to the pressure control chamber, a release passage for releasing the refrigerant gas from the pressure control chamber to the suction-pressure region, a first control valve for adjusting a cross-sectional area of the supply passage from the discharge-pressure region to the pressure control chamber and a second control valve for adjusting cross-sectional area of the release passage. The second control valve includes a valve body for opening and closing the release passage whose cross-sectional area is set minimum when the valve body is located at the closed position and a valve spring for urging the valve body in a direction to open the release passage. When the second control valve is closed, pressure in the supply passage downstream the first control valve acts on the valve body in a direction to close the release passage and pressure in the suction-pressure region acts on the valve body in a direction to open the release passage.

Variable displacement type compressor with displacement control mechanism

A motor-driven compressor has a compression mechanism, a rotary shaft, an electric motor, a motor drive circuit, a connecting terminal and a housing assembly. The compression mechanism, the electric motor, and the motor drive circuit are disposed along the axial direction of the rotary shaft in the housing assembly having first through third housings. The first housing is used for mounting the electric motor and the compression mechanism. The second housing has a terminal mounting portion for fixing the connecting terminal. The first and second housings have fastening portions at the radially peripheral portion thereof. The third housing is joined to the second housing to form an accommodation space for accommodating the motor drive circuit. The closed casing is formed by fastening the fastening portions of the first and second housings by means of a first bolt and connecting the second housing to the open end of the first housing.

A motor-driven compressor has a compression mechanism, a rotary shaft, an electric motor, a motor drive circuit and a housing assembly. The compression mechanism, the electric motor and the motor drive circuit are disposed along the axial direction of the rotary shaft in the housing assembly. The housing assembly has first and second housings. The first housing mounts the electric motor and the compression mechanism. The first housing has first and second mounting lugs formed integrally with the peripheral surface of the first housing. The second housing is joined to the first housing for accommodating the motor drive circuit. The second housing has a third mounting lug formed integrally with the second housing. The first through third mounting lugs are fastened to a mounting object to which the motor-driven compressor is to be mounted by means of fastening members.

Motor driven compressor

A capacity control valve includes a valve body having a first valve portion for opening/closing a discharge-side path and a second valve portion for opening/closing a suction-side path, a pressure sensitive body arranged in a third valve chamber in the middle of the suction-side path, a valve seat body provided at the pressure sensitive body, and a third valve portion connected to the valve body for opening/closing the suction-side path by engagement and disengagement with the valve seat body. One of an engagement face of the third valve portion and a seat face of the valve seat body is formed into a spherical shape with a radius of curvature R satisfying 9 mm&#x3c;R&#x3c;11 mm and the other of the engagement face of the third valve portion and the seat face of the valve seat body is formed into a tapered surface shape having a center angle &#x3b1; satisfying 120&#xb0;&#x3c;&#x3b1;&#x3c;160&#xb0;. As such, a liquid refrigerant or the like accumulating in the control chamber can be discharged efficiently, and predetermined capacity control can be carried out rapidly.

Capacity control valve

A suction throttle valve of a compressor has a compressor housing having a suction chamber and a crank chamber. The suction throttle valve includes a suction passage formed in the housing, a suction port provided at an inlet of the suction passage, a valve body movably arranged in the suction passage for adjusting opening of the suction passage, an urging member for urging the valve body toward the suction port, and a valve chamber provided in the suction passage. Refrigerant is drawn into the suction passage through the suction port and then received in the suction chamber. A first communication hole is formed through the housing, through which the valve chamber and the suction chamber are in constant communication with each other. A second communication hole is formed through the housing, through which the valve chamber and the crank chamber are in constant communication with each other.

Suction throttle valve of a compressor

A mechanism for drawing in refrigerant to front compression chambers () of a double-headed piston type compressor differs from a mechanism for drawing in refrigerant to rear compression chambers (). More specifically, the mechanism for drawing in refrigerant to the front compression chambers () include suction valves () configured by flap valves. The mechanism for drawing in refrigerant to the rear compression chambers () is configured by a rotary valve (). Thus, pulsation of the compressor is reduced, so that the generation of noise is suppressed. As a result, a quiet compressor is achieved.

Double-headed piston type compressor

A displacement control mechanism for a variable displacement compressor includes a first valve hole, a first valve body, a pressure sensing means operable to sense pressures of first and second points in a discharge pressure region to adjust a position of the first valve body, and a pressure-difference-increasing means operable to increase pressure difference between the first and second points when the pressure of a suction pressure region falls below a predetermined standard pressure. The pressure sensing means displaces the first valve body to increase an opening degree of the first valve hole according to increase of the pressure difference when the first valve hole is part of a supply passage. The pressure sensing means displaces the first valve body to decrease the opening degree of the first valve hole according to the increase of the pressure difference when the first valve hole is part of a bleed passage.

Displacement control mechanism for variable displacement compressor

A double-headed piston type compressor forms a first compression chamber and a second compression chamber for compressing gas. The compressor has rotary shaft having an inner chamber that interconnects a suction chamber and the first and second compression chambers for introducing the gas into the first and second compression chambers. The compressor also has a partition wall that is located in the inner chamber for dividing the inner chamber into a first passage and a second passage. The first passage interconnects the suction chamber and the first compression chamber. The second passage interconnects the suction chamber and the second compression chamber.

A heat-insulating mechanism in a compressor which introduces refrigerant gas from a suction pressure region to a compression chamber and discharges the refrigerant gas from the compression chamber to a discharge pressure region has a circular passage, a communication passage, a cylindrical member and a passage heat-insulating member. The circular passage, which is a portion of the suction pressure region, has a circular cross-section, and is in communication with an external refrigerant circuit. The communication passage, which is a portion of the suction pressure region, intersects the circular passage for connection therewith, and is communicable with the compression chamber. The cylindrical member is fitted into the circular passage. The passage heat-insulating member made of an insulating material covers at least a portion of a passage wall surface which forms the communication passage. Rotation of the cylindrical member is prevented by engaging the passage heat-insulating member with the cylindrical member.

Heat-insulating mechanism for compressor

A displacing device is incorporated in a displacement control valve. The displacing device includes a first pressure chamber, a second pressure chamber, a second bellows, a transmission rod, and an urging spring. The second pressure chamber communicates with a suction chamber. The interior of the second pressure chamber is a suction pressure zone. When the pressure in the suction pressure zone is less than or equal to a predetermined reference pressure, the transmission rod moves an actuation rod (valve body) to open a valve hole. Therefore, a variable displacement compressor is prevented from operating with a large displacement when there is insufficient amount of refrigerant or when the speed of the compressor is high.

A vehicle exhaust heat recovery system includes a vapor compression type refrigeration circuit, a boiler to which the refrigerant is introduced from the refrigeration circuit and heated, and an expander for generating motive power by expanding the heated refrigerant. The refrigerant circulates in the refrigeration circuit. The boiler heats the refrigerant introduced therein using exhaust heat generated by the vehicle. The refrigerant that has been subjected to expansion is recycled to the refrigeration circuit.

Vehicle exhaust heat recovery system

Growing community of inventors

Kariya, Japan

Masahiro Kawaguchi