Denso Corporation

Kabushiki Kaisha Tokai Rika Denki Seisakusho

Hiroshi Kataoka

Shinji Iwama

Haruyuki Nishijima

Yuji Honda

Shun Kurata

Kazuyoshi Ishiguro

Yoshiyuki Yokoyama

Hitoshi Ninomiya

Youhei Nagano

Yukitaka Abe

Masuo Noda

Motomi Mizuno

Isamu Takasugi

An ejector-type refrigeration cycle includes an ejector module integrated with a gas-liquid separation device. A length of an inlet pipe that connects a liquid-phase refrigerant outflow port of an ejector module to a refrigerant inflow port of an evaporator is shorter than a length of a suction pipe that connects a gas-phase refrigerant outflow port of the ejector module to a suction port of the compressor.

Ejector-type refrigeration cycle

An air cleaning system comprising an air cleaner provided on a vehicle and a device which can keep the air cleaner in operation while a vehicle is parked, whereby the quality of air inside a passenger compartment of the vehicle can be improved while the vehicle is parked. Consequently, the quality of the air can be improved in advance before an occupant enters the vehicle, and the quality of the air can further be improved without fully depending upon the function of a catalytic filter of the air cleaning system.

Automotive air cleaning system

A gas concentration detector for detecting a concentration of pollutant gas such as NOx or SOx contained in ambient air is composed of an oxide-semiconductor gas sensor heated by a heater and a controller for determining the gas concentration by comparing a concentration level detected by the gas sensor with a calculated comparison level. The comparison level is calculated so that it follows the detected level with a certain delay. The degree of the delay is set shorter in an unstable region- of the gas sensor than in a stable region, thereby to effectively determine the gas concentration even in the unstable region.

Gas concentration detector using oxide-semiconductor

Contact holders accommodated in defined regions are elastically returned to initial positions on the side of a wall. At the initial positions, stoppers are formed integral with a wall which defines the regions, in such a manner that the stoppers are in parallel with the wall and spaced a distance from the wall. Those stoppers are each in the form of a thin plate, and have protrusions which are extended towards the contact holders, respectively. Hence, when returning to the initial positions, the contact holders and strike against the protrusions of the stoppers, so that the latter are bent towards the wall while reducing the distance, thus decreasing the impact thereon when the contact holders strike against the stoppers.

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Kariya, Japan

Hiroshi Kataoka