Calsonic Kansei Corporation

Calsonic Corporation

Yoshiaki Koga

Yoshihiro Sasaki

Shinya Kaneko

Masayoshi Shinhama

Hiroyuki Tamura

Toru Asanuma

Mitsunari Narahara

Junichi Hiyama

Enichi Ishiwa

Takahiro Ono

Kaoru Ito

Kazuhiro Kojima

Yutaka Moriyama

Toshisada Kujirai

Norimitsu Takeshita

Yuji Ohira

A widthwise one half portion of a core section is constituted by a first section formed by stacking a plurality of first elements having first and second linear channels and inside them and fins, and a widthwise other half portion thereof is similarly constituted by a second section formed by stacking a plurality of second elements respectively having U-shaped channels inside them and fins. The number of times the refrigerant fed into a thicknesswise one half portion on an inlet tank side of the first section is turned back in an opposite direction concerning a longitudinal direction of the first linear channels inside this thicknesswise one half portion is made more numerous than the number of times the refrigerant fed into a thicknesswise other half portion on an outlet tank side of the first section is turned back in the opposite direction concerning the longitudinal direction of the second linear channels inside this thicknesswise other half portion.

Stacked-type evaporator

The height of a bead opposing a joint where side edges of a plate are to be joined is set to be smaller than the height of a bead which does not oppose the joint by the thickness of the plate. Further, lands are provided between the beads and protrude from either the tube surface or the tube surface toward the inside of the main tube unit, and flow gaps are formed through which the heat-exchange medium flows over the lands.

Flat tubes for use with heat exchanger and manufacturing method thereof

A stack type evaporator for use in an automotive air conditioner comprises generally a first mass which includes first heat exchanging elements, each first heat exchanging element having mutually independent first and second passages; and a second mass which includes second heat exchanging elements, each second heat exchanging element having a generally U-shaped third passage which has first and second ends. The second mass is arranged beside the first mass in such a manner that the first and second heat exchanging elements are aligned on a common axis. An inlet tank passage connects to upper ends of the first passages. An upstream tank passage connects to lower ends of the first passages and the first ends of the third passages. A downstream tank passage connects to lower ends of the second passages and the second ends of the third passages. An outlet tank passage connects to upper ends of the second passages. An inlet pipe connects to the inlet tank passage. An outlet pipe is connected to the outlet tank passage.

Stack type evaporator

A cooler unit housing is located in a passenger room near a dashboard of a motor vehicle. A piping arrangement of the cooler unit comprises a pipe joint which is positioned at and supported by an opening of the dashboard. The pipe joint has a first face facing toward the passenger room and a second face facing toward the engine room. An expansion valve unit is connected to the first face of the pipe joint. Coolant inlet and output pipes are arranged, each having one end connected to an evaporator in the cooler unit housing and the other end led to the expansion valve unit. A grommet is disposed between a peripheral portion of the opening and an outer wall portion of the pipe joint thereby to establish sealing therebetween.

Piping arrangement of automotive air conditioner

Growing community of inventors

Tokyo, Japan

Yoshiaki Koga