Kubota Corporation

Omron Corporation

Takashi Onishi

Yoshikazu Takemoto

Mitsugu Okuda

Toshio Nakahira

Tomoya Akitomo

Yuichi Tamaki

Keita Naito

Katsuaki Arai

Hiroshi Yamamoto

Kazuhide Hirota

Koichi Takemura

Toshiaki Morichika

Manabu Miyazaki

Kozo Yoshida

Masahiro Nagahama

Hidetaka Morinaga

Hiroyuki Araragi

Shinji Miyazaki

Hozumi Ishida

Junichiro Tsuji

Masakazu Komano

Tetsuo Hayashi

Kazuyuki Otake

Kazunori Harada

Daido Uchida

Kota Yonezawa

Yoshihiko Kawamoto

Hiroshi Sasaki

Nobuyuki Kobayashi

Koichi Yanai

A surface light source device includes a light source; a light guide plate that has a light entrance surface through which light enters, and that emits the light entering through the light entrance surface from a light exit surface; a wiring board; and a metal frame. The metal frame includes a bottom portion having a bottom surface that faces a surface on an opposite side to the light exit surface, a side wall erected on an outer periphery of the bottom surface, and a projecting portion provided on the side wall so as to project toward the bottom surface side. The metal frame houses the light source, the light guide plate, and the wiring board. At least a part of the light source is disposed between the bottom portion and the projecting portion, and the wiring board is disposed between the light source and the bottom portion.

Surface light source device, display device, and electronic device

An exhaust gas processing device for an engine, capable of securely warming a combustion catalyst, is provided. A combustion catalyst burning gas is produced when a warming end condition for the combustion catalyst is established, which signifies the establishment of either one of a first condition or a second condition. In the first condition, an inlet temperature of a combustion catalyst is equal to or higher than an activation requirement temperature of the combustion catalyst, and further, an outlet temperature of the combustion catalyst is equal to or higher than an activation confirmation temperature of the combustion catalyst in excess of the inlet temperature of the combustion catalyst. In the second condition, the outlet temperature of the combustion catalyst exceeds a warming confirmation temperature of the combustion catalyst that is set to be higher as an engine speed is lower, for a predetermined period of time.

Exhaust gas processing device for engine

It is an object of the present invention to provide an exhaust gas treatment device of an engine capable of preventing matching surfaces of catalyst portions configuring a combustible gas catalyst from being thermally damaged. In the exhaust gas treatment device, combustible gas is produced by combustible gas generating catalyst, exhaust gas heated by combustion of combustible gas is supplied to an exhaust gas treatment portion, the combustible gas generating catalyst comprises an aggregate of a plurality of catalyst portions, each of the catalyst portions includes a matching surface with respect to adjacent one of the catalyst portions, a fastening ring is fitted over the combustible gas generating catalyst in which the matching surfaces of the adjacent catalyst portions are abutted against each other, and the matching surfaces of the adjacent catalyst portions are brought into tight contact with each other by a fastening force of the fastening ring.

Exhaust gas treatment device of engine

An engine exhaust treatment device is capable of combusting PM accumulated in a DPF or activating an exhaust purification catalyst even immediately after engine startup or at the time of light load operation. A combustible gas supply passage () communicates with an exhaust passage () on an upstream of a combustion catalyst (). An air supply unit () and an ignition unit () are provided in this supply passage and interlocked with a control unit (). Where a temperature of the exhaust is lower than a predetermined temperature, the control unit supplies air () to a combustible gas by the air supply unit () and causes ignition of the combustible gas by the ignition unit (), so as to cause flame combustion of the combustible gas. The temperature of the exhaust () in the exhaust passage () is increased by heat of this flame combustion.

Engine exhaust treatment device

An exhaust treatment device of a diesel engine is provided in which combustible gas is burned with oxygen in exhaust, combustion heat increases a temperature of the exhaust, and heat of the exhaust can burn and remove PM accumulating in a DPF. In order to cause a heater for radiating heat at a start of generation of the combustible gas to enter a catalyst inlet portion, and fit a liquid fuel retaining member over a periphery of the heater, a guide plate is provided to a lower face of the liquid fuel retaining member so that the air-fuel mixture moving down in the liquid fuel retaining member flows along an upper face of the guide plate out to a periphery of the guide plate.

Exhaust treatment device of diesel engine

An exhaust treatment apparatus for an engine including a combustible gas supplying passage; a heat releasing port opened in an upstream side in the exhaust passage from the oxidation catalyst and in a downstream side in the combustible gas supplying passage, the exhaust passage and the combustible gas supplying passage communicating with each other through the heat releasing port; an ignition apparatus beneath the heat releasing port, the heat of flaming combustion of combustible gas ignited by the ignition apparatus being supplied to the exhaust passage to raise the temperature of exhaust in the exhaust passage; a flame holding plate in a downstream side in the combustible gas supplying passage from the ignition apparatus, an exhaust guiding plate at the top portion of the flame holding plate, the exhaust guiding plate having an upward slope toward a downstream side in the exhaust passage.

Exhaust treatment apparatus for engine

An exhaust gas treatment device for a diesel engine capable of starting the generation of a combustible gas is provided. The device includes a combustible gas generator. A core member is fitted in the center portion of an annular wall to form an air-fuel mixing chamber between the inner peripheral surface of the annular wall and the outer peripheral surface of the core member. An air-fuel mixture gas in the air-fuel mixing chamber is adapted to be supplied from the end of the air-fuel mixing chamber to a combustible gas generating catalyst to a portion near the center thereof. A heater is used as the core member. The heat dissipating outer peripheral surface of the heater is exposed to the air-fuel mixing chamber. Heat is dissipated directly from the heat dissipating outer peripheral surface of the heater to the air-fuel mixing chamber when starting the generation of the combustible gas.

Exhaust gas treatment device for diesel engine

Internal combustion engine

An engine comprises a crank case () provided with a lower opening portion (), which is covered with an oil pan () from below, and with a pair of left and right oil passages which extends in a front and rear direction along left and right lateral walls () and (). In this engine, the crank case () has the left and right lateral walls () and () provided with left and right ribs () and () extending in the front and rear direction. These left and right ribs () and () are raised inwards from the left and right lateral walls () and () of the crank case (). In order to provide left and right oil passages () and () in these left and right ribs () and (), these ribs () and () are positioned at the lower opening portion () of the crank case ().

Engine

An oxide-dispersion-strengthened sintered alloy improved in oxidation resistance and compressive strength for use at high temperatures of at least 1350.degree. C. The alloy includes a matrix of a metal consisting substantially or predominantly of Cr, and 0.2 to 2.0% by weight of Y.sub.2 O.sub.3 uniformly dispersed in the matrix. The Y.sub.2 O.sub.3 as uniformly dispersed is up to 0.1 .mu.m in mean particle size.

Oxide-dispersion-strengthened heat-resistant chromium-based sintered

Growing community of inventors

Sakai, Japan

Takashi Onishi