Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Haruhiko Shimoji

Hiroaki Kitano

Masami Abe

Koichiro Kamei

Daisuke Mizuno

Kazuhiro Odahara

Shoji Yoshikawa

Masao Inoue

Masahiko Kurishige

Masahiro Iezawa

Katsuhiko Yamada

Taehyun Kim

Yuhei Tsukahara

Katsumasa Miyatake

Norimasa Yoshida

The engine starting device includes a starter motor, a pinion portion, a pushing mechanism for pushing a pinion gear of the pinion portion to a position at which the pinion gear comes into meshing engagement with a ring gear, and an integrated switch for operating a motor-energization switch to pull a plunger after the pinion gear is pushed, by configuring a switch for actuating the pushing mechanism and turning ON/OFF an energization current to the starter motor by a single plunger coil. When a restart request is issued after an engine stop is requested and therefore the integrated switch is placed in an ON state, operation timing of the pushing mechanism and coil-operation timing of the plunger coil are set so that the starter motor avoids operating until the pinion gear comes into contact or meshing engagement with the ring gear.

Engine starting device

The engine starter includes: a starter motor; a pinion unit () for sliding in an axial direction on an output shaft of the starter motor; and a ring gear () which meshes with a pinion pushed out by a push-out mechanism () and receives a transmission of a rotational force of the starter motor to thereby start an engine, and the pinion portion () includes a pinion gear divided in the axial direction into two pinion gears which are a first pinion gear () having a protruded shape for synchronization, for first colliding with the ring gear upon start of meshing with the ring gear, and a second pinion gear () for serving to transmit the rotational force after the meshing.

Engine starter

A switching apparatus includes: a vacuum valve which houses a fixed side electrode fixed to a fixed current-carrying shaft and a movable side electrode fixed to a movable current-carrying shaft coaxially arranged with the fixed current-carrying shaft in face-to-face relation to the fixed side electrode; and a buffering mechanism which is coaxially disposed with the fixed current-carrying shaft on the fixed side of the vacuum valve and reduces a collision load at the time when the movable side electrode is close contact with the fixed side electrode.

Switching apparatus

An apparatus for determining the attitude of an artificial satellite by narrowing attitude candidates to a correct one in a short time. The apparatus has star sensors, a star catalog data base, star identification sections in each of which star images output from the star sensors are collated with a star catalog with respect to each star sensor to output a group of corresponding candidates, attitude computation sections for computing a value of an attitude candidate of the artificial satellite with respect to each corresponding candidate, an attitude updating section for updating the value of the attitude candidate on the basis of the star images output from the star sensor and the star catalog, and an attitude propagation section for computing the value of the attitude candidate at the present sampling time from the value of the attitude candidate at the preceding sampling time and the artificial satellite's angular velocity. An attitude candidate unification section for comparing and combining the values of attitude candidates into one candidate is provided in a loop including the attitude updating section and the attitude propagation section.

Apparatus for determining attitude of artificial satellite

Growing community of inventors

Chiyoda-ku, Japan

Haruhiko Shimoji