Mitsubishi Fuso Truck & Bus Corporation

Nec Corporation

Nissan Diesel Motor Co., Ltd.

Tokyo Roki Co., Ltd.

Yasuko Suzuki

Satoshi Hiranuma

Shinichi Saito

Hiroaki Fujita

Yoshinaka Takeda

Yoshio Nakayama

Reiko Doumeki

Minehiro Murata

Shinichi Saitou

Satoshi Yamazaki

Ritsuko Shinozaki

Yuji Mitsui

Norihiro Kajimoto

Fumio Aoki

Hayato Aizawa

An exhaust purification device for an engine comprises a catalyst device that purifies the exhaust gas of the engine by using an additive; a venturi-shaped mixing chamber that is disposed upstream from the catalyst device and extends from a taper portion with a diameter tapering downstream to continue to a constricted portion with a minimum diameter and then to a flared portion with a diameter that is increased in the downstream direction; a swirl-generating device that is disposed in vicinity of a most upstream section of the taper portion of the mixing chamber and generates a swirling flow in the exhaust gas; and an additive-injection device that is disposed upstream from the constricted portion of the mixing chamber and downstream from the swirl-generating device, and injects the additive into the mixing chamber.

Exhaust purification device for engine

Disclosed is an exhaust purification device for an internal combustion engine provided with a venturi-shaped mixing chamber () upstream of a NOx catalyst (), said mixing chamber () formed continuously from a tapering part () along which the radius decreases in the downstream direction, a waist part () at which the radius is at smallest, and a widening part () along which the radius increases in the downstream direction. A vane plate () and an aqueous urea solution spray nozzle () are arranged inside the tapering part (). The ratio (a/b) of the distance (a) between the vane plate () and the center of the waist part () and the distance (b) between the center of the waist part () and the mouth of the NOx catalyst () is set between 0.5 and 1.0.

Exhaust purification apparatus for internal combustion engine

An exhaust purification apparatus comprises an ammonia selective reduction-type NOx catalyst that selectively reduces NOx within exhaust gas by using ammonia as a reducing agent, a urea-water supply device that supplies urea-water into the exhaust gas existing upstream of the ammonia selective reduction-type NOx catalyst, and a control unit. The control unit controls the urea-water supply device so that the urea-water is intermittently supplied according to predetermined supply duration time and predetermined supply suspension time when the urea-water is supplied from the urea-water supply device for the purpose of providing ammonia to the ammonia selective reduction-type NOx catalyst.

Exhaust purification apparatus for engine

An agitating device for agitating the exhaust gas of an engine includes a base plate having a plurality of through holes that are defined by radially extending spoke portions and a ring-like rim portion and are arranged in a circular pattern in a circumferential direction of the base plate, and a plurality of fins expanding from the respective spokes on a slant with respect to the base plate. The base plate is fixed in the exhaust passage by the rim portion being jointed to the exhaust passage at welded portions. The welded portions are each disposed in an area between respective two adjacent spoke portions in the circumferential direction of the base plate, and an outer edge of the rim portion positioned on the outer side of the rim portion in extending directions of the spoke portions is located next to the exhaust passage with a gap provided therebetween.

An exhaust purification device for an engine comprises a catalytic device for purifying exhaust by using an additive, a deflecting device for allowing the exhaust to flow through and causing the exhaust to be agitated, upstream of the catalytic device, an additive injection device for injecting an additive, downstream of the deflecting device, a temperature detection device for detecting exhaust temperature, downstream of the deflecting device, and a control unit for controlling the additive injection device on the basis of the exhaust temperature detected by the temperature detection device. The temperature detection device has a temperature detection part located within a region where the exhaust having passed through the deflecting device has increased velocity.

An exhaust gas purification device comprises a NOx catalyst for purifying NOx contained in exhaust gas by using ammonia as a reducing agent, an ammonia supply device for supplying ammonia to the NOx catalyst, a catalyst temperature sensor for detecting the internal temperature of the NOx catalyst, and a control unit that stops the ammonia supply from the ammonia supply device when the stop condition is satisfied that the internal temperature of the NOx catalyst becomes equal to or higher than first prescribed temperature in the process where ammonia is supplied from the ammonia supply device to the NOx catalyst.

Exhaust gas purification device

In the function-selecting scene, if one of component keys of a function-selecting key is touched by a user's finger, a cursor is shifted to an item corresponding to the component key touched by the user's finger (S). If the user gives a push at the same key (S), the item specified by the cursor is definitely fixed, and steps assigned to the selected item are successively executed (S). If the user's finger touches the next component key of the function selecting key, the cursor is shifted to the other item corresponding to the next component key (S). Since information to be inputted is definitely fixed when the user pushes down the key touched by his finger, he can decide to input information, only watching the display and without seeing the keys.

Method for inputting information and apparatus used for same

In a communication apparatus, a CPU (Central Processing Unit) determines whether or not a message codeword included in a received message begins with a background picture display command. If a background picture display commands heads the message codeword, the CPU reads a background picture designated by a symbol following the command out of a ROM (Read Only Memory) If the message codeword includes a fixed sentence command, then the CPU reads a fixed sentence designated by a symbol following the command out of a ROM Each fixed sentence is associated a particular background picture stored in the ROM and is displayed in a particular format in the background picture. As a result, each fixed sentence read out of the ROM is displayed in a particular area on the basis of a background picture read out of the ROM Further, when the message codeword includes a position command or a font command, the CPU controls the position or the font of characters to be displayed in accordance with the command.

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Kawasaki, Japan

Yasuko Suzuki