Denso Corporation

Denso International America, Inc.

Osamu Kobayashi

Ken Yamamoto

Yoshiyuki Yamauchi

Minoru Ohta

Hiroyuki Yamaguchi

Takeshi Kitahara

Toshiya Nagasawa

Kazuhiro Mitsukawa

Hidenori Akita

Glenn Crocker

Ryo Tamura

Isao Kinoshita

Eiichi Ogata

Timothy Roland

Keisuke Kunitomo

Takuya Miyasaka

Ryuu Mizoguchi

A wireless communication apparatus mounted on a mobile body includes a transmitter and a receiver. The transmitter is configured to transmit position information indicating a position to which the mobile body is scheduled to move, to a server apparatus. The receiver is configured to receive communication quality information indicating a communication quality corresponding to the position, from the server apparatus. The transmitter is configured to transmit the date at a communication position specified based on the communication quality information.

Wireless communication apparatus and server apparatus

There is provided an automotive air conditioning system comprising a primary blower disposed at a front part of a vehicle having a passenger compartment constituted by a front-seat side space and a rear-seat side space, a case disposed in the front part of the vehicle in such a manner that air is caused to flow from one end to the other end thereof by means of the primary blower and having a lower opening which is opened therein at a lower portion at the other end thereof, a heat exchanger disposed within the case, a scroll case disposed below the case and having opened therein an outlet and an inlet connecting to the lower opening, an centrifugal fan accommodated in the scroll case and having a rotating shaft which is oriented in a substantially vertical direction, a secondary blower having driving means for driving the centrifugal fan, and a rear seat duct connected to the outlet and communicating with the rear-seat side space.

Automotive air conditioning system

A tube for a heat exchanger has notch portions at a longitudinal direction end portion to be inserted into a header tank. Further, several passage holes are provided in the tube to extend in a longitudinal direction of the tube in which refrigerant flows. The notch portions are formed by cutting parts of the tube to be defined by cut surfaces. The passage holes are not provided at portions corresponding to the cut surfaces. Therefore, the passage holes are securely prevented from being crushed and cut when the notch portions are formed by cutting. As a result, joining failure between the tube and the header tank can be prevented.

Heat exchanger having multi-hole structured tube

A heat exchanger has plural flat tubes through which refrigerant flows, and a pair of header tanks disposed on each longitudinal ends of the flat tubes. Each of the flat tubes has a flow passage portion having plural flow passages through which refrigerant flows, and a non-flow passage portion disposed on both sides of the flow passage portion, having at least one non-flow passage through which no refrigerant flows. The flow passage portion is inserted into the header tank so that the flow passages communicate with the header tank, and the non-flow passage portion is exposed outside the header tank. Each of the flow passages has a circular-shaped cross-section while the non-flow passage has a polygonal-shaped cross-section, so that a wall thickness of the non-flow passage is made thinner than that of the flow passages. Therefore, weight of the flat tube is decreased, while sufficient strength thereof is maintained. On the other hand, the header tank has an inner partition wall for partitioning the header tank into first and second tank passages having an oval-shaped cross-section, so that the header tank has high pressure resistance.

Heat exchanger

A heat exchanger in which refrigerant flows has a first core portion disposed in a first air passage for exchanging heat with inside air and a second core portion for exchanging heat with outside air. The second core portion is disposed at a downstream side of the first core portion in a refrigerant flow direction. Accordingly, refrigerant exchanges heat with inside air, first, and then exchanges heat with outside air, a temperature of which is lower than that of inside air. Further, refrigerant flows to form an opposed flow with respect to an air flow direction in the respective first and second core portions. As a result, heating performance of the heat exchanger is improved.

Heat exchanger for inside/outside air two-passage unit

A radiator includes a plurality of flat tubes in which refrigerant flows, corrugated fins each of which is disposed between adjacent the flat tubes, and a header tank disposed at both end sides of each flat tube in a longitudinal direction of the flat tubes. A plurality of insertion holes into which the flat tubes are inserted are formed in a tank portion of the header tank, and each of the insertion holes has a hole width approximately equal to a tank width of the header tank in a width direction perpendicular to both of the longitudinal direction of the flat tubes and an extending direction of the header tank. The tank portion of the header tank is integrally formed from extruding or drawing, and the insertion holes are formed by shaving the tank portion after the extruding or drawing. Thus, the insertion holes can be readily provided in the tank portion integrally formed from the extruding or the drawing, and pressure tightness and manufacturing workability of the header tank can be improved.

Heat exchanger and method for manufacturing header tank

An inside wall surface of a cap covering the end portion of a header tank is formed into a spherical shape, and a connecting portion between the inside wall surface of the cap and a inside wall surface of a tank portion is separated away from a connecting portion between the inside wall surface of the tank portion and an outside wall surface of a tube. Thus, the brazing material is suctioned into both connecting portions (both gaps) sufficiently, and both connecting portions are brazed firmly.

Heat exchanger constructed by a plurality of tubes

A heat exchanger has a plurality of tubes and tank portions formed by a plurality of first thin plates laminated and connected to each other, and a plurality of covering members formed by a plurality of second thin plates laminated and connected to each other. The covering members cover the tubes and the tank portions while forming a plurality of openings therebetween. Each of the first thin plates has a communication hole so that each of the openings communicates with each other. An electromagnetic valve is disposed in the heat exchanger to control a communication between the opening and an outer space of the heat exchanger. Thus, when any one of the tubes and the tank portions cracks and leaks refrigerant flowing therethrough, refrigerant is collected into the openings and is accurately rapidly discharged to the outer space by an opening operation of the electromagnetic valve.

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Chiryu, Japan

Osamu Kobayashi