Patents Assigned to Isuzu Motors Ltd
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Patent number: 10471794Abstract: A vehicle rear-suspension bracket includes a bracket having raised lateral portions. The bracket includes a bumper portion and a frame portion. The raised lateral portions create a lateral channel between the lateral portions that extends an entire length of the bracket.Type: GrantFiled: March 27, 2017Date of Patent: November 12, 2019Assignee: ISUZU MOTORS, LTD.Inventor: Rand Burzese
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Publication number: 20040159097Abstract: This is a method for regenerating the NOx catalyst in a NOx purifying system provided in the exhaust passage with a direct reduction type NOx catalyst which directly decomposes the NOx during lean-condition operation and is regenerated at rich-condition operation, and the method prohibiting the rich-condition control when the temperature detected by a catalyst temperature detecting means is within the predetermined temperature range.Type: ApplicationFiled: February 10, 2004Publication date: August 19, 2004Applicant: Isuzu Motors Ltd.Inventors: Yutaka Uematsu, Jin Yokoyama
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Publication number: 20040154285Abstract: The exhaust gas purifying system (1) for the internal combustion engine, comprising the first exhaust gas purifying device (31) provided with the NOx occlusion reduction type catalyst arranged in the exhaust gas passage (30) of the internal combustion engine (10), and also comprising the respective oxygen concentration sensors (34, 35) arranged at the upstream and downstream of the first exhaust gas purifying device (31), and which controls to end the rich control when a difference between the oxygen concentrations detected by both of said oxygen concentration sensors (34, 35) falls not higher than a predetermined judgment value during the rich control for restoring the catalytic ability of the first exhaust gas purifying device (31), is provided with the second exhaust gas purifying device (32) for cleaning HC and CO at the downstream of said first exhaust gas purifying device (31).Type: ApplicationFiled: February 4, 2004Publication date: August 12, 2004Applicant: Isuzu Motors Ltd.Inventors: Daiji Nagaoka, Masashi Gabe, Takayuki Sakamoto
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Patent number: 6725652Abstract: In a diesel particulate filtering device 1A, 1B which is provided with a diesel particulate filter units 10, 20, 30 for cleaning exhaust gas, and in which cleaning of the exhaust gas and the recovery thereof are performed, diesel particulate filter controllers 60, 62 for determining a recovery time based on detected values PI, PO0, PO1, PO2 of exhaust pressure sensors 51 to 55 in an upstream side of said diesel particulate filter units 10, 20, 30 and a downstream side thereof are provided with determination-value update means 60a, 62a resetting determination values R0, R1, R2 for determining a recovery time by comparing the detected values, PO0, PO1, PO2 with a standard exhaust pressure value P0.Type: GrantFiled: June 13, 2001Date of Patent: April 27, 2004Assignee: Isuzu Motors LTD.Inventor: Toshiaki Sakaguchi
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Patent number: 6632018Abstract: A thermocouple-type temperature-detecting device excellent in the temperature measurement responsiveness constituted of an outer protective pipe 1 and an inner protective pipe 2, the outer protective pipe 1 is formed in a laminated layer structure of a 2nd layer 10 made of a ceramic containing molten metal-repelling BN and a 1st layer 11 made of a ceramic, the inner protective pipe 2 is formed of a front protective pipe 3 made of a ceramic having a good heat conductivity and a heat-shielding rear protective pipe 4 extending into the outer protective pipe 1 through an air layer 17, furthermore, the head portion 5 of the front protective pipe 3 is projected from the outer protective pipe 1, and a temperature-sensitive portion 20 of a thermocouple is disposed in the inside of the head portion 5.Type: GrantFiled: March 7, 2001Date of Patent: October 14, 2003Assignee: Isuzu Motors Ltd.Inventors: Tetsuya Isshiki, Takayuki Suzuki, Hideki Kita
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Patent number: 6585788Abstract: The width of at least one felt out of a plurality of felts (22 to 24) is formed of ceramic fibers superposed between two wire nets (26, 27) for a heater is made to be narrower than the width w of the wire nets for heater (26, 27), and the width of other felts (22, 24) is made to be the same as the width w of the wire nets (26, 27) for the heater. A superposed body (28) of the wire nets (26, 27) for a heater and the felts (22 to 24) is bent lengthwise to form a tube (21) having a petal shape in section, and a metal frame (31) is connected to both ends of the tube (21).Type: GrantFiled: July 20, 2001Date of Patent: July 1, 2003Assignee: Isuzu Motors, Ltd.Inventor: Takatoshi Sugano
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Patent number: 6375098Abstract: The invention relates to an injection valve (10) for the fuel injection in a internal combustion engine, in particular in a diesel engine. The injection valve (10) has a holder body (20) in which a first passage (30) is formed. At the holder body (20) a nozzle body (40) of an injection nozzle (16) is secured in which a second passage (54) is formed which is connected to the first passage (30) and which together with the latter forms a fuel infeed line for the injection nozzle (16). Moreover, a closure mechanism (60) is provided for the closing off of the injection nozzle (16). A sleeve (74) serves for the sealing off of the connection point between the first and the second passage (30, 54).Type: GrantFiled: April 7, 2000Date of Patent: April 23, 2002Assignees: Delphi Technologies, Inc., Isuzu Motors, Ltd.Inventors: Tsutomu Fuseya, Mahoro M. Fujita, Hermann Breitbach, Russell Harmon Bosch
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Patent number: 6360972Abstract: The invention relates to a switching valve (10) comprising a valve body (20) in which a flow passage (24) is formed which opens with its one end into a work space (42). A valve plate (44) is accommodated in the work space (42) and can be moved between a closure position and an opening position. A closure element (50) is arranged between the valve plate (44) and the opening (26) of the flow passage (24) and closes the latter when the valve plate (44) is located in its closure position.Type: GrantFiled: April 6, 2000Date of Patent: March 26, 2002Assignees: Delphi Technologies, Inc., Isuzu Motors, Ltd.Inventors: Tsutomu Fuseya, Mahoro M. Fujita, Hermann Breitbach
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Patent number: 6251039Abstract: A continuous variable transmission is disclosed wherein the planetary gearset arranged downstream of the toroidal transmission mechanism is made simple in construction to reduce the overall axial length. To cope with this, a first planetary gearset arranged downstream of the toroidal transmission mechanism is comprised of a first carrier, a sun gear connected to an output disk, and a ring gear. The first carrier supports thereon a dual pinion having a first and second planet-gears. The ring gear may come in engagement with the second planet-gear through a first clutch for low-range operation. The combined construction of the first and second planetary gearsets contributes to the reduction of the axial length in the gearing mechanism. The second clutch for high-range operation may hold the second ring gear to a stationary case.Type: GrantFiled: February 3, 2000Date of Patent: June 26, 2001Assignee: Isuzu Motors, Ltd.Inventor: Hidetaka Koga
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Patent number: 6218743Abstract: A starting apparatus for starting an engine only under constant conditions includes an electronically controlled clutch which is engaged or disengaged by an actuator in accordance with output signals from various detectors. The detectors sense a driving state, wherein a starter cut relay having normally-closed contacts is connected to an output terminal of an electronic control unit. One of the contacts of the starter cut relay is connected to one end of a relay coil for a starter relay. The other end of the relay coil is connected to a power source through a key switch. The other contact of the starter cut relay is connected to a non-grounded side contact of a neutral relay which is connected to the power source.Type: GrantFiled: February 23, 1999Date of Patent: April 17, 2001Assignee: Isuzu Motors LtdInventors: Masahiko Hayashi, Junichi Imai, Kazuhiko Kobayashi, Hiroyuki Arai
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Patent number: 5901675Abstract: A valve operating apparatus for DOHC engine allowing to improve the fuel consumption, in DOHC engines, is provided with by reducing the weight of the shaft system of valve operating mechanism and lowering the driving force for the dynamic valve and, at the same time, permitting to improve the durability and the silence of the transmission system and, moreover, assuring a good combustion even for engines having smaller bore diameter. A first and a second cam shafts for opening/closing the intake/exhaust valve are arranged side by side on a cylinder head, a first transmission means is disposed at a shaft end of the first cam shaft positioned at one side of the engine and, at the same time, shaft ends of the first and second cam shafts located at the other side of the engine are linked for the transmission of the driving power by a second transmission means.Type: GrantFiled: January 21, 1998Date of Patent: May 11, 1999Assignee: Isuzu Motors Ltd.Inventor: Akira Nakagomi
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Patent number: 5845723Abstract: A start-assist system for a vehicle using air actuators attached to one of rear axles, behaving as a drive axle, is provided to increase the load to the drive axle and the traction when the vehicle starts to run. A control device supplies air to the air actuators when the unladen vehicle is stopped, but discharges air from the air actuators, while keeping residual air in them, when the laden vehicle is stopped or when the vehicle runs at a speed over a predetermined speed. Thus the air actuators are protected from collapsing.Type: GrantFiled: June 25, 1996Date of Patent: December 8, 1998Assignee: Isuzu Motors Ltd.Inventors: Hideto Hirahara, Masaaki Kano, Minori Higuchi, Haruyuki Hosoya
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Patent number: 5836272Abstract: This invention provides a cylinder head capable of efficiently cooling the portion at which a large number of valve ports gather. The present invention provides a cylinder head (20) of an engine equipped with suction and exhaust valve ports (3a, 5a) inside a cooling jacket (8), characterized in that a drain port (11) allowing the cooling water jacket (8) to communicate with the outside of the cylinder head (20) opens in a corner portion at one end portion of a side wall (1a) of the cylinder head, water feed ports (10a) extending along the side wall (1a), opening to the cooling water jacket (8) and communicating with the cooling water jacket of the cylinder block are formed in a cylinder bottom wall (1c), and a partition is so disposed as to divide the portion at which the water feed ports (10a) are open and the portion at which the suction and exhaust valve ports (3a, 5a) are disposed and to guide cooling water from the water feed ports (10a) round the suction and exhaust valve ports (3a, 5a).Type: GrantFiled: July 17, 1995Date of Patent: November 17, 1998Assignee: Isuzu Motors Ltd.Inventor: Noriyuki Sakurai
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Patent number: 5804897Abstract: Projecting into a brake drum is an annular guide frame defining an annular inner chamber of rectangular shape in section, having an outer wall portion formed by a thin cylindrical body of nonmagnetic material, and an inner annular wall of ferromagnetic material. An annular magnet support member is axially movable within the inner chamber of the guide frame, and supports a plurality of permanent magnets disposed closely adjacent to the cylindrical body and in circumferentially spaced apart positions of uniform pitch, the polarities of the permanent magnets alternating circumferentially.Type: GrantFiled: November 26, 1996Date of Patent: September 8, 1998Assignee: Isuzu Motors Ltd.Inventor: Tohru Kuwahara
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Patent number: 5803487Abstract: The invention has an object to improve easiness and certainty of the mounting operation of an air bag lid onto an opening of an instrument panel, and upon expanding operation of the air bag, increase the opening area of the air bag lid opening so as not to prevent expansion of the spreading air bag in the passenger compartment. A lid bracket 34 is connected to an air bag lid 15. The air bag lid 15 is secured through the lid bracket 34 to a panel bracket 32 provided on the back of the instrument panel 11 from the surface side of the instrument panel 11. Then, an air bag module body 12 is secured to the panel bracket 32 from the back side of the instrument panel 11. Further, collars 19 pierced with engagement holes 20 on the back thereof are provided on the air bag lid 15. Insertion spaces 36 for insertion of collars 19 and setup claws 37 for engagement in the engagement holes 20 of collars 19 inserted into the insertion spaces 36 are formed in the lid bracket 34.Type: GrantFiled: February 19, 1997Date of Patent: September 8, 1998Assignees: AlliedSignal Inc., Isuzu Motors Ltd., Kansei CorporationInventors: Ryo Kikuchi, Satoru Yamaguchi, Robert E. Scriven, Hirohiko Kikuchi
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Patent number: 5794582Abstract: An internal combustion engine includes a piston having a crown portion with a bottom surface and a skirt projecting therefrom to form a cavity, and a connecting rod having at one end a semicylindrical yoke portion with an upwardly directed semicylindrical concave surface and downwardly directed semicylindrical convex surfaces. A guide member is slidably retained between the bottom surface and the concave surface, and an annular member projecting into and fixed to the skirt defines spaced apart semicylindrical concave surfaces each engaging portions of the convex surfaces.Type: GrantFiled: May 23, 1997Date of Patent: August 18, 1998Assignee: Isuzu Motors Ltd.Inventor: Shigeaki Horiuchi
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Patent number: 5732787Abstract: A start-assist system provided in a vehicle having two rear axles, one of which is a drive axle. A control device includes an air actuator attached to the drive axle; a level sensor for detecting loads applied to the axles; an air supply source for supplying compressed air to the air actuator; a first valve disposed in an air conduit for supplying air to the air actuator; a second valve for releasing air from the air actuator; and a controller for controlling the first valve and the second valve. The controller opens the first valve to introduce air to the air actuator when a signal from the level sensor indicates that the vehicle is stopped and is unladen, opens the second valve to release air from the air actuator when the signal from the level sensor indicates that the vehicle is stopped and is laden.Type: GrantFiled: March 19, 1996Date of Patent: March 31, 1998Assignee: Isuzu Motors, Ltd.Inventors: Hideto Hirahara, Masaaki Kano, Minori Higuchi, Haruyuki Hosoya
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Patent number: 5642282Abstract: A cab is supported on a vehicle frame by hydraulic actuators, each provided with a stroke displacement sensor, and a suspension system for the frame includes a plurality of height sensors. The hydraulic actuators are driven by a control system to maintain a stable orientation of the cab in response to signals derived from the displacement and height sensors and representing vertical, longitudinal, lateral, yaw rolling and pitching vibrations of the cab.Type: GrantFiled: March 10, 1995Date of Patent: June 24, 1997Assignee: Isuzu Motors Ltd.Inventor: Tsutomu Sonehara
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Patent number: 5623410Abstract: A vehicle cab attitude controlling system including a frame supported by wheels of the vehicle, a cab mounted on the frame; a cab suspension system mounting the cab on the frame and allowing relative movement therebetween, the cab suspension system having a plurality of seats each supporting a different portion of the cab and at least one seat being detachable therefrom; and a cab actuator for activating the cab suspension system to adjust vertical displacements between said frame and the seats.Type: GrantFiled: March 31, 1995Date of Patent: April 22, 1997Assignee: Isuzu Motors Ltd.Inventors: Kenichi Furihata, Fumiaki Takei
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Patent number: 5555501Abstract: A vehicle cab attitude control system, in which a pair of hydraulic actuators control longitudinal movements between a vehicle frame and portions of the cab located on opposite sides of the cab's center of gravity and spaced vertically therefrom. The hydraulic actuators are controlled dependent on detected changes in longitudinal positions of the cab portions to suppress changes in longitudinal cab attitude. The suppression compensates for existing longitudinal inputs, thus improving riding comfort.Type: GrantFiled: March 31, 1995Date of Patent: September 10, 1996Assignee: Isuzu Motors, Ltd.Inventors: Kenichi Furihata, Fumiaki Takei