Other

Denso Corporation

Nippon Soken, Inc.

Yukio Ogawa

Shigeki Iwanami

Takashi Inoue

Hironori Asa

Shinya Yamamoto

Yasushi Yamanaka

Haruyuki Nishijima

Keiichi Uno

Hirotsugu Takeuchi

Hiroyuki Hayashi

Mikio Matsuda

Yasuhiko Niimi

Tatsushi Mori

Shigeru Hisanaga

Naoki Hakamada

Makoto Ikegami

Yasushi Suzuki

Yoshiki Tada

Tsuyoshi Takemoto

Hisatsugu Matsunaga

Tooru Ikemoto

Takeharu Asaoka

Shinichi Watanabe

Tetsuya Hyakutake

Toshihiro Osima

A low-cost vehicle air-conditioning apparatus for idle stopping vehicles is capable of performing both cooling and heating operations throughout the year. The air-conditioning apparatus includes an engine-driven compressor and engine-driven pump for a heating unit. The air-conditioning apparatus includes a motor-driven compressor and pump. A control unit drives the motor such that the motor-driven compressor is operated when there is a need for cooling and the motor-driven pump is operated when there is a need for heating when the engine is stopped. Battery power is conserved through various methods.

Air-conditioning apparatus including motor-driven compressor for idle stopping vehicles

A dynamotor capable of operating as either a motor or a generator is used with both the armature portion and the field portion thereof capable of being rotated. In the case where a pulley operatively interlocked with the output shaft of the prime mover is mounted on the rotary shaft of the armature portion, the drive shaft of the compressor is mounted on the rotating field portion. Once the dynamotor is operated in motor mode, the rotational speed of the compressor is increased to the sum of the input rotational speed and the rotational speed of the dynamotor. The compressor is stopped by disconnecting a power feed circuit. When the input rotational speed is too high, the dynamotor is operated in generator mode. In this way, the rotational speed is reduced in accordance with the generated electric energy.

Dynamotor driven compressor and method for controlling the same

In an ejector, a nozzle is provided within a housing to defining a passage portion around the nozzle, and a suction port is provided in the housing to draw a refrigerant by entrainment of a driving refrigerant jetted from the nozzle. Further, a wall portion is provided in the housing such that the refrigerant drawn from the suction port into the passage portion is prevented from flowing toward an inlet side of the nozzle from a position of the suction port in an axial direction of the nozzle. Therefore, all of the refrigerant flowing from the suction port flows toward an outlet side of the nozzle without flowing toward the inlet side of the nozzle from the position of the suction port in the axial direction. Thus, it can prevent a large pressure loss from being caused in the refrigerant sucked from the suction port, and ejector efficiency can be effectively increased.

Ejector for vapor-compression refrigerant cycle

A controlled compressor apparatus enables a hybrid compressor in an idle-stopping vehicle to operate more efficiently when driven by a motor alone. The controlled compressor apparatus includes a compressor , included in a refrigeration circuit , of a variable volume type for compressing a refrigerant; a motor powered by a battery to operate; and a controller for selecting the driving force provided either by the engine or the motor to drive the compressor and control its discharge volume. The controller causes the motor to operate the compressor such that the compressor is turned on or off at a discharge volume of the compressor that larger within a variable range than that required for operating the refrigeration circuit

Hybrid compressor

A selectively driven compressor for stopping the power generating operation of a motor when an internal combustion engine is operating to make it unnecessary to provide the motor that can withstand high voltage. The system reduces the load on the internal combustion engine. The system includes a pulley driven by a main drive source, an electric motor, which includes an armature and a field system, driven by a power source. The compressor is driven selectively by the pulley or the electric motor. The armature and the field system of the electric motor are independently supported. The pulley is mechanically connected to either of the armature and the field system, and the compressor is mechanically connected to the other.

Compressor driven selectively by first and second drive sources

Composite drive system for compressor

An inclined surface is formed in an upper inside wall of housing. The inclined surface inclines downwardly toward a lip seal. Lubricant oil supplied to the upper end of the inclined surface flows along the inclined surface without dropping downwardly due to surface tension, and flows to the lower end of the inclined surface then reaches the lip seal. Thus, the lubricant oil is supplied to the lip seal with certainty, thereby suppressing the wear of the lip seal and improving the durability of the compressor.

Compressor having an inclined surface to guide lubricant oil

A performance of a compressor is enhanced and durability of scroll bodies is enhanced by optimizing relief to machining tolerance at a central end part of spiral members for forming the scroll bodies. In a scroll type compressor in which a reinforced portion (for example, a large radius of curvature R) reinforced more than in other root corner portions,is provided in a root corner portion,at a central end part in which a stress of the two spiral members,and,is increased, a first relief is formed in a region in which the two spiral members,and,come into contact with each other where the reinforced portion is applied only to one of the spiral members,and,and a second relief larger than the first relief is provided in a region in which the two spiral members come into contact with each other at a portion in which the radius of curvature R is provided in both of the two spiral members, thereby reasonably forming reliefs for avoiding interference at the point of contact of two spiral members.

Scroll type compressor

Growing community of inventors

Kariya, Japan

Yukio Ogawa