Patents Represented by Attorney James N. Dresser, Esq.
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Patent number: 7048502Abstract: A fluid coupling comprising a pump having an annular pump shell with an annular core ring mounted on a pump hub and a plurality of impellers radially arranged in the pump shell, and a turbine arranged facing the pump and having an annular turbine shell with an annular core ring mounted on a turbine hub that can rotate relative to the pump hub and a plurality of runners radially arranged in the turbine shell, wherein the turbine shell is so constituted to slide on the turbine hub in the axial direction, and provision is made of a centrifugal pushing means for pushing the turbine toward the pump by the action of the centrifugal force produced by the rotation of the turbine.Type: GrantFiled: February 5, 2004Date of Patent: May 23, 2006Assignee: Isuzu Motors Inc.Inventors: Nobuyuki Iwao, Yasushi Yamamoto
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Patent number: 6997144Abstract: A cylinder head structure for an internal combustion engine that is disposed on the upper surface of a cylinder body in which a plurality of cylinders are arranged in the lengthwise direction thereof, and that has an exhaust port, an intake port and a fuel injector mounting hole for each of the cylinders; a boss for bolt hole having a bolt hole for inserting a cylinder head bolt on the exhaust port side and a boss for bolt hole having a bolt hole for inserting a cylinder head bolt on the intake port side being provided between the exhaust ports and between the intake ports of the neighboring cylinders, and a partitioning wall being formed for coupling the boss for bolt hole on the exhaust port side to the boss for bolt hole on the intake port side and for sectionalizing the cooling water chamber, wherein the boss for bolt hole on the intake port side is provided with guide portions that guide the cooling water flowing into the cooling water chamber to the side of the fuel injector mounting hole from the exhauType: GrantFiled: April 8, 2004Date of Patent: February 14, 2006Assignee: Isuzu Motors LimitedInventors: Tomohiro Sugano, Keiji Shimotani, Hideki Kubo, Yumiko Umemura
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Patent number: 6935374Abstract: A pressure proportional control valve for controlling the pressure of an operation fluid, such as the air, in proportion to the output of an electromagnetic operation member.Type: GrantFiled: December 11, 2003Date of Patent: August 30, 2005Assignee: Isuzu Motors LimitedInventor: Yasushi Yamamoto
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Patent number: 6931844Abstract: A fluid coupling comprising a pump having an annular pump shell with an annular core ring mounted on a pump hub and a plurality of impellers radially arranged in the pump shell, and a turbine arranged facing the pump and having an annular turbine shell with an annular core ring mounted on a turbine hub that can rotate relative to the pump hub and a plurality of runners radially arranged in the turbine shell, wherein the turbine shell is so constituted to slide on the turbine hub in the axial direction, and provision is made of a resilient urging means for pushing the turbine toward the side of the pump.Type: GrantFiled: February 5, 2004Date of Patent: August 23, 2005Assignee: Isuzu Motors LimitedInventors: Nobuyuki Iwao, Yasushi Yamamoto
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Patent number: 6928811Abstract: A fluid coupling comprising a pump having a pump shell and a plurality of impellers arranged in the pump shell, a turbine having a turbine shell arranged to be opposed to the pump and a plurality of runners arranged in the turbine shell, and a baffle mechanism arranged in a fluid circulation passage formed by the pump shell and the turbine shell, wherein the baffle mechanism comprises a first baffle plate having a plurality of first openings, a second baffle plate that has a plurality of second openings and is disposed in such a manner as to overlap with the first baffle plate and as to be allowed to rotate relative thereto, and a centrifugal operation means for turning the second baffle plate relative to the first baffle plate in response to the rotational speed of the first baffle plate.Type: GrantFiled: October 9, 2003Date of Patent: August 16, 2005Assignee: Isuzu Motors IncorporatedInventors: Yasushi Yamamoto, Nobuyuki Iwao
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Patent number: 6898931Abstract: A fluid coupling comprising: a pump having a pump shell and a plurality of impellers arranged in the pump shell; and a turbine disposed opposite said pump and having a turbine shell and a plurality of runners arranged in said turbine shell; wherein provision is made of a baffle mechanism which retractably protrudes into a fluid circulatory passage formed by the pump shell and the turbine shell, the baffle mechanism greatly protruding into the fluid circulatory passage in a state where the rotational speed is low and protruding little into the fluid circulatory passage in a state where the rotational speed is high.Type: GrantFiled: November 6, 2002Date of Patent: May 31, 2005Assignee: Isuzu Motors LimitedInventors: Nobuyuki Iwao, Yasushi Yamamoto
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Patent number: 6892601Abstract: A gear change device including a shift lever support mechanism arranged in a casing to support a shift lever so as to slide in the axial direction of the casing and to rotate, a select actuator for operating the shift lever support mechanism to slide the shift lever in the axial direction which is the direction of selection, and a shift actuator for rotating the shift lever support mechanism to rotate the shift lever in the direction of shift. The shift actuator has an operation lever, with a base portion mounted on the shift lever support mechanism, and a pair of electromagnetic solenoids arranged facing each other, with the acting portion of the operation lever interposed therebetween. The solenoids are inclined with respect to the horizontal direction. A resilient urging member produces an urging force in the direction of operation of the electromagnetic solenoid which operates upward along the inclination.Type: GrantFiled: June 27, 2002Date of Patent: May 17, 2005Assignee: Isuzu Motors LimitedInventor: Michinobu Suzuki
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Patent number: 6889573Abstract: A shift actuator for transmission, for turning, in a direction of shift, a shift lever support mechanism mounting the shift lever of the transmission. An operation lever is coupled, at an intermediate portion thereof, to the shift lever support mechanism. A first electromagnetic solenoid and a second electromagnetic solenoid are coupled to the two ends of the operation level so as to operate in upward and downward directions. The operation rod of the first electromagnetic solenoid is coupled to one end of the operation lever, and the operation rod of the second electromagnetic solenoid is coupled to the other end of the operation lever.Type: GrantFiled: July 2, 2002Date of Patent: May 10, 2005Assignee: Isuzu Motors LimitedInventors: Masahiko Hayashi, Yasushi Yamamoto, Nobuyuki Iwao
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Patent number: 6886335Abstract: A device for preventing the turbo-charger from over-running, wherein an actuator is arranged in a by-pass bypassing a turbine of the turbo-charger and operates a waste gate valve. The actuator has a positive pressure chamber communicated, via a boost pipe, with an intake air passage downstream of a compressor and a negative pressure chamber communicated with a source of negative pressure via a negative pressure pipe. The negative pressure chamber is so constituted as to be supplied with a negative pressure to have a target pressure that is set relative to the atmospheric pressure.Type: GrantFiled: November 18, 2003Date of Patent: May 3, 2005Assignee: Isuzu Motors LimitedInventors: Tetsuo Tabata, Naohito Metoki, Takayuki Tazawa, Kenji Hagio
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Patent number: 6880422Abstract: A shift actuator for a transmission, which actuates, in a direction of shift, a shift lever for operating a synchronizing device of the transmission, the shift actuator comprising a first electromagnetic solenoid and a second electromagnetic solenoid for actuating an operation member coupled to the shift lever in the directions opposite to each other. Each of the first electromagnetic solenoid and the second electromagnetic solenoid comprises a casing, a fixed iron core disposed in the casing, a moving iron core arranged to be allowed to approach, and separate away from, the fixed iron core, an operation rod mounted on the moving iron core to engage with the operation member, and an electromagnetic coil arranged between the casing and the fixed iron core as well as the moving iron core.Type: GrantFiled: June 27, 2003Date of Patent: April 19, 2005Assignee: Isuzu Motors LimitedInventor: Yasushi Yamamoto
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Patent number: 6877391Abstract: A gear change device includes a select actuator for operating a shift lever in a direction of selection and a shift actuator for operating the shift lever in a direction of shift. The select actuator includes a casing, a shift lever support member that is disposed in the casing so as to slide in an axial direction. The shift lever support member supports the shift lever, a magnetic moving member disposed on the outer periphery of the shift lever support member, a cylindrical fixed yoke surrounding the magnetic moving member, and a coil disposed on the inside of the fixed yoke.Type: GrantFiled: March 31, 2004Date of Patent: April 12, 2005Assignee: Isuzu Motor LimitedInventor: Yasushi Yamamoto
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Patent number: 6848330Abstract: A gear change device including a select actuator for operating a shift lever in a direction of selection and a shift actuator for operating the shift lever in a direction of shift, wherein the select actuator includes a casing, a shift lever support member that is disposed in the casing so as to slide in an axial direction and that supports the shift lever, a magnetic moving member disposed on the outer periphery of the shift lever support member, a cylindrical fixed yoke surrounding the magnetic moving member, and a coil disposed on the inside of the fixed yoke.Type: GrantFiled: January 18, 2002Date of Patent: February 1, 2005Assignee: Isuzu Motors LimitedInventor: Yasushi Yamamoto
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Patent number: 6843057Abstract: A Stirling engine comprising a casing, a displacer arranged in the casing so as to slide, an expansion chamber and an operation chamber into which, and from which, an operation gas flows with the operation of the displacer, and a power piston that is operated in response to a change in the pressure of the operation gas in the operation chamber, wherein the Stirling engine further comprises a displacer operation means having a moving yoke disposed in the displacer and a pair of electromagnetic solenoids disposed to surround the moving yoke and juxtaposed to each other in the axial direction in the casing; a power piston position detection means for detecting the operation position of the power piston; and a control means for controlling to switch over the excitation of the pair of electromagnetic solenoids of the displacer operation means based on a detection signal from the power piston position detection means.Type: GrantFiled: August 5, 2003Date of Patent: January 18, 2005Assignee: Isuzu Motors LimitedInventor: Yasushi Yamamoto
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Patent number: 6823661Abstract: A device for purifying exhaust gas of a diesel engine equipped with a continuous regeneration type diesel particulate filter arranged in the exhaust gas passage of the engine. The device includes an intake air shutter arranged in the intake air passage of the engine, an exhaust gas temperature region detector for detecting an exhaust gas temperature region of the engine, a controller for controlling the opening degree of the intake air shutter when the exhaust gas temperature region of the engine, detected by the exhaust gas temperature region detector, is lower than a predetermined temperature region, and an exhaust valve-operating mechanism equipped with an exhaust gas introduction mechanism for opening the exhaust valve of the engine for a short period of time during the intake stroke of a cylinder of the diesel engine, to introduce exhaust gas into the cylinder.Type: GrantFiled: January 23, 2003Date of Patent: November 30, 2004Assignee: Isuzu Motors LimitedInventor: Toshitaka Minami
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Patent number: 6810762Abstract: A gear change device comprising a select actuator for actuating a shift lever in the direction of selection and a shift actuator for actuating the shift lever in the direction of shift, and the select actuator has a shift lever support mechanism arranged in a casing to support the shift lever in such a manner as to slide in the axial direction and to rotate, an electromagnetic solenoid for operating the shift lever in the axial direction which is the direction of selection, a select position-limiting mechanism for limiting the operation position of the shift lever according to the thrust produced in response to the amount of electric power fed to the electromagnetic coils of the electromagnetic solenoids, and the shift actuator works to turn the shift lever support mechanism in the direction of shift.Type: GrantFiled: June 17, 2002Date of Patent: November 2, 2004Assignee: Isuzu Motors LimitedInventor: Michinobu Suzuki
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Patent number: 6792821Abstract: A shifting device for operating the shift lever of a transmission equipped with a synchronizing mechanism in the direction of shift, which comprises a shift actuator for operating the shift lever in the direction of shift, a shift stroke sensor for detecting the shift stroke position of said shift lever, and a control means for controlling the electric power fed to said shift actuator based on a signal from said shift stroke sensor. The control means controls the electric power fed to the shift actuator in response to the shift stroke position detected by the shift stroke sensor.Type: GrantFiled: August 13, 2002Date of Patent: September 21, 2004Assignee: Isuzu Motors LimitedInventor: Yasushi Yamamoto
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Patent number: 6741264Abstract: A method of generating an audible indication of data stored in a database and representing a group of data points. Preselected audible sounds are assigned to indicate various degrees of variation in the values of the data for the respective data points from normal or expected values for such data. A visual display is created having an arrangement indicative of the data points providing the data in the database. The visual display is scanned, and for each scanned data point the preselected audible sound is generated which indicates the degree of variation in the value of the data from the normal value for such data. Display figure icons can be included in the visual display, corresponding to the data points, each icon indicating the degree of variation in the value of the data for the corresponding data point from the normal or expected value for such data, thus providing a visual indication of the value of the data for the data point presently being scanned, as well as an audible indication.Type: GrantFiled: May 11, 1999Date of Patent: May 25, 2004Assignee: GIFIC CorporationInventor: Michael F. Lesser