Patents Represented by Attorney James N. Dresser, Esq.
  • Patent number: 7048502
    Abstract: 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: Grant
    Filed: February 5, 2004
    Date of Patent: May 23, 2006
    Assignee: Isuzu Motors Inc.
    Inventors: Nobuyuki Iwao, Yasushi Yamamoto
  • Patent number: 6997144
    Abstract: 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 exhau
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: February 14, 2006
    Assignee: Isuzu Motors Limited
    Inventors: Tomohiro Sugano, Keiji Shimotani, Hideki Kubo, Yumiko Umemura
  • Patent number: 6935374
    Abstract: 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: Grant
    Filed: December 11, 2003
    Date of Patent: August 30, 2005
    Assignee: Isuzu Motors Limited
    Inventor: Yasushi Yamamoto
  • Patent number: 6931844
    Abstract: 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: Grant
    Filed: February 5, 2004
    Date of Patent: August 23, 2005
    Assignee: Isuzu Motors Limited
    Inventors: Nobuyuki Iwao, Yasushi Yamamoto
  • Patent number: 6928811
    Abstract: 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: Grant
    Filed: October 9, 2003
    Date of Patent: August 16, 2005
    Assignee: Isuzu Motors Incorporated
    Inventors: Yasushi Yamamoto, Nobuyuki Iwao
  • Patent number: 6898931
    Abstract: 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: Grant
    Filed: November 6, 2002
    Date of Patent: May 31, 2005
    Assignee: Isuzu Motors Limited
    Inventors: Nobuyuki Iwao, Yasushi Yamamoto
  • Patent number: 6892601
    Abstract: 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: Grant
    Filed: June 27, 2002
    Date of Patent: May 17, 2005
    Assignee: Isuzu Motors Limited
    Inventor: Michinobu Suzuki
  • Patent number: 6889573
    Abstract: 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: Grant
    Filed: July 2, 2002
    Date of Patent: May 10, 2005
    Assignee: Isuzu Motors Limited
    Inventors: Masahiko Hayashi, Yasushi Yamamoto, Nobuyuki Iwao
  • Patent number: 6886335
    Abstract: 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: Grant
    Filed: November 18, 2003
    Date of Patent: May 3, 2005
    Assignee: Isuzu Motors Limited
    Inventors: Tetsuo Tabata, Naohito Metoki, Takayuki Tazawa, Kenji Hagio
  • Patent number: 6880422
    Abstract: 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: Grant
    Filed: June 27, 2003
    Date of Patent: April 19, 2005
    Assignee: Isuzu Motors Limited
    Inventor: Yasushi Yamamoto
  • Patent number: 6877391
    Abstract: 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: Grant
    Filed: March 31, 2004
    Date of Patent: April 12, 2005
    Assignee: Isuzu Motor Limited
    Inventor: Yasushi Yamamoto
  • Patent number: 6848330
    Abstract: 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: Grant
    Filed: January 18, 2002
    Date of Patent: February 1, 2005
    Assignee: Isuzu Motors Limited
    Inventor: Yasushi Yamamoto
  • Patent number: 6843057
    Abstract: 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: Grant
    Filed: August 5, 2003
    Date of Patent: January 18, 2005
    Assignee: Isuzu Motors Limited
    Inventor: Yasushi Yamamoto
  • Patent number: 6823661
    Abstract: 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: Grant
    Filed: January 23, 2003
    Date of Patent: November 30, 2004
    Assignee: Isuzu Motors Limited
    Inventor: Toshitaka Minami
  • Patent number: 6810762
    Abstract: 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: Grant
    Filed: June 17, 2002
    Date of Patent: November 2, 2004
    Assignee: Isuzu Motors Limited
    Inventor: Michinobu Suzuki
  • Patent number: 6792821
    Abstract: 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: Grant
    Filed: August 13, 2002
    Date of Patent: September 21, 2004
    Assignee: Isuzu Motors Limited
    Inventor: Yasushi Yamamoto
  • Patent number: 6741264
    Abstract: 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: Grant
    Filed: May 11, 1999
    Date of Patent: May 25, 2004
    Assignee: GIFIC Corporation
    Inventor: Michael F. Lesser