Jtekt Corporation

Mitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd.

Shinji Deguchi

Akira Katayama

Toshiyuki Saito

Nobuya Nakagawa

Masatoshi Morishita

Masahiro Ido

Toshihisa Kondo

Kikutoshi Okada

Ikuya Kato

Dai Kiyota

Teruhiro Nakamura

Futoru Furuta

Yasuo Ishihara

Naoki Makino

A vehicle heat pump air-conditioning system is provided, which is capable of securing a temperature linearity characteristic during dehumidifying heating, slowing progression of a frost formation on an exterior evaporator during heating, and stably continuing a heating operation while suppressing variations in a blowout temperature. In a cooling refrigeration cycle () becoming a base, an interior condenser () disposed in a HVAC unit () is connected to an exterior condenser () in parallel via switching means (), an exterior evaporator () is connected to first decompression means () and an interior evaporator () in parallel via second decompression means (), a heating heat pump cycle () is configured, the first decompression means () and the second decompression means () are on-off valve function attached decompression means (), and the exterior evaporator () and the interior evaporator () can be simultaneously used during dehumidifying heating and heating.

Vehicle heat pump air-conditioning system

A first angular grinding wheel and a straight grinding wheel having rotation axes parallel to each other are arranged on a swivel slide that turns about a turning axis. A reference symmetry plane (MA) that is parallel to a grinding wheel rotation axis and that includes the turning axis and a reference perpendicular plane (MB) that is perpendicular to the reference symmetry plane and that includes the turning axis are defined. A grinding reference point (PA) of the first angular grinding wheel (TA) and a grinding reference point (PP) of the straight grinding wheel (TP) are arranged asymmetrical with respect to the reference symmetry plane. A distance from the grinding reference point of the straight grinding wheel to the reference symmetry plane is equal to a distance from the grinding reference point of the first angular grinding wheel to the turning axis.

Grinding machine

A bed for machine tool includes a fluid channel crossing the bed and at least one reinforcement bridging the fluid channel. Thus the machining accuracy of a workpiece becomes higher.

Machine tool bed having fluid channel

Growing community of inventors

Nagoya, Japan

Shinji Deguchi