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    Engine
    1.
    发明专利
    Engine 有权
    发动机

    公开(公告)号：JP2013181444A

    公开(公告)日：2013-09-12

    申请号：JP2012044992

    申请日：2012-03-01

    Applicant: Yanmar Co Ltd ,  ヤンマー株式会社 ,  Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： TAKAHASHI TAKASHI ,  ITATSU TOSHIRO

    IPC: F02B39/16 ,  F02D45/00

    CPC classification number: F02D41/34 ,  F02B37/00 ,  F02B39/16 ,  F02D23/02 ,  F02D41/0007 ,  F02D41/009 ,  F02D41/222 ,  Y02T10/144 ,  Y02T10/40

    Abstract: PROBLEM TO BE SOLVED: To provide an engine capable of detecting operation failure of a turbo sensor while reducing a computational burden on a control device.SOLUTION: An engine 1 includes: an engine body 10 having a plurality of cylinders; an intake line 20; an exhaust line 30; a supercharger 40; a turbo sensor 51 that detects a rotation number of the supercharger 40; a control device 70 that controls an operation state related to the rotation number of the supercharger 40, of the engine body 10 based on a signal from the turbo sensor 51; and a crank angle sensor 52 that detects a rotation angle of a crank shaft 5. The control device 70 specifies timing in which the plurality of cylinders reach a top-dead center based on the detection signal by the crank angle sensor 52, and makes a disconnection determination of the turbo sensor 51 in one combustion cycle of the engine body 10 and at a non-top-dead center timing where none of the plurality of cylinders reaches the top-dead center.

    Abstract translation: 要解决的问题：提供能够检测涡轮传感器的运行故障的发动机，同时降低控制装置的计算负担。发动机1包括：发动机主体10，其具有多个气缸; 进气管线20; 排气管线30; 增压器40; 检测增压器40的转数的涡轮传感器51; 基于来自涡轮传感器51的信号来控制与发动机主体10的增压器40的转数有关的动作状态的控制装置70; 以及曲柄角传感器52，其检测曲轴5的旋转角度。控制装置70基于曲柄角传感器52的检测信号来指定多个气缸到达上止点的定时， 在发动机主体10的一个燃烧循环中的涡轮传感器51的断开确定以及多个气缸中没有一个到达上止点的非上止点中心定时。

    FUEL INJECTION TIMING DETECTION DEVICE
    3.
    发明专利
    FUEL INJECTION TIMING DETECTION DEVICE 失效

    公开(公告)号：JPH10299621A

    公开(公告)日：1998-11-10

    申请号：JP10888097

    申请日：1997-04-25

    Applicant: DENSO CORP ,  TOYOTA MOTOR CORP

    Inventor： TANAKA AKIO ,  TAKAHASHI TAKASHI ,  SUZUKI MASAO

    IPC: F02M61/16 ,  F02M65/00

    Abstract: PROBLEM TO BE SOLVED: To make a winding large and to prevent the breaking of a coil by forming two circular grooves in a bobbin provided in a detection part and by putting a winding for generating a magnetic field in one groove and a wire for taking out a signal in the other groove. SOLUTION: A high-frequency current is passed through a winding 32 via a signal taking-out wire 24 to generate an alternating magnetic flux in a coil 30. When fuel is injected, a pressure pin 2 is moved with a needle to change a gap L between the flange 20 of the pressure pin 2 and the coil 30, which changes the magnetic flux density of the coil 30 and the pressure pin 2. An electric signal induced in the coil 30 is changed based on the change of the magnetic flux density and is sent to a detector via the signal taking out wire 24 and the time-varying lift of the needle is determined by a time-varying voltage. Since the winding 32 and the signal taking-out wire 24 are put separately in the circular grooves 33, 34 made in a bobbin 31, the winding 32 can be wound in a relatively large space.

    FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINE
    4.
    发明专利
    FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINE 失效

    公开(公告)号：JPH04308355A

    公开(公告)日：1992-10-30

    申请号：JP7175691

    申请日：1991-04-04

    Applicant: TOYOTA MOTOR CORP

    Inventor： TAKAHASHI TAKASHI ,  YAMAMOTO TAKASHI

    IPC: F02M55/02 ,  F02M47/02

    Abstract: PURPOSE:To impede the dispersion of fuel injection quantity from each fuel injection valve. CONSTITUTION:There are provided a pair of fuel pumps 2a, 2b driven by an engine, and high pressure fuel discharged from these fuel pumps 2a, 2b is supplied into a fuel accumulator 22 through the respectively corresponding fuel feed pipes 37a, 37b. The high pressure fuel in the fuel accumulator 22 is supplied to fuel injection valves 1a-1f through injection pipes 21a-21f. Fuel is discharged alternately from the respective fuel pumps 2a, 2b synchronously with fuel injection action from the fuel injection valves. The injection pipe equivalent pipe length of each injection pipe to pressure wave propagation is made equal, and the fuel feed pipe equivalent pipe length of each fuel feed pipe to pressure wave propagation is also made equal.

    UNIT INJECTOR
    5.
    发明专利
    UNIT INJECTOR 失效

    公开(公告)号：JPH0275755A

    公开(公告)日：1990-03-15

    申请号：JP22554888

    申请日：1988-09-10

    Applicant: TOYOTA MOTOR CORP

    Inventor： TAKAHASHI TAKASHI

    IPC: F02M51/00 ,  F02M57/02

    Abstract: PURPOSE:To shorten the length of a fuel overflow passage and to reduce the volume of a fuel pressurizing chamber by a method wherein an overflow valve coupled to the interior of the fuel pressurizing chamber through the fuel overflow passage is arranged eccentrically from the axis of a piezoelectric element to the plunger side. CONSTITUTION:A fuel pressurizing chamber 15 is formed in a lower end surface 12a of a plunger 12 slidably inserted in a sleeve 10 securely engaged internally o;f a housing body 1, and the fuel pressurizing chamber 15 is coupled to a needle pressurizing chamber 18 through a fuel passage 17. A slide hole 25 is formed in the housing body 1 by the side of a plunger hole 11, and an overflow valve 26 is slidably inserted in the slide hole 25. A fuel overflow chamber 27 communicated to an annular fuel chamber 21 through a fuel passage 28 is formed adjacently to the slide hole 25.

    UNIT INJECTOR
    6.
    发明专利
    UNIT INJECTOR 失效

    公开(公告)号：JPH01178764A

    公开(公告)日：1989-07-14

    申请号：JP33525987

    申请日：1987-12-29

    Applicant: TOYOTA MOTOR CORP

    Inventor： TAKAHASHI TAKASHI

    IPC: F02M57/02

    Abstract: PURPOSE:To make the capacity of a fuel pressure chamber inclusive of a fuel overflow passage too reducible by making an axis of a sliding hole in an overflow valve so as to be paralleled with a straight line almost orthogonal with that of a needle at some space. CONSTITUTION:A sliding hole 21 extending crosswise is formed in a housing body 1 at the sideway vicinity in a plunger hole 11. Accordingly, an axis of this sliding hole 21, where an overflow valve 22 is slidably inserted thereinto, is made so as to be paralleled with a straight line almost orthogonal with a common axis of a plunger and a needle 7 at some space. With this constitution, since the sliding hole 21 can be set up adjacently in a fuel pressure chamber 15, capacity of this fuel pressure chamber 15 inclusive of a fuel overflow passage 27 can be made smaller. Consequently, fuel pressure in the fuel pressure chamber 15 can be made into high pressure so easily, while the fuel pressure in the fuel pressure chamber 15 can be lowered at once when the overflow valve 22 is opened. In addition, breadth of a unit injection is narrowable.

    INJECTION QUANTITY MEASURING INSTRUMENT
    7.
    发明专利
    INJECTION QUANTITY MEASURING INSTRUMENT 失效

    公开(公告)号：JPS63284420A

    公开(公告)日：1988-11-21

    申请号：JP11919787

    申请日：1987-05-15

    Applicant: TOYOTA MOTOR CORP ,  ONO SOKKI CO LTD

    Inventor： TAKAHASHI TAKASHI ,  TSUZUKI NAOYUKI ,  OMORI YUKIMITSU ,  TAKAMURA AKIO

    IPC: F02B1/04 ,  F02D41/00 ,  F02M65/00 ,  G01F1/20 ,  G01F1/28 ,  G01F1/34 ,  G01F3/20

    Abstract: PURPOSE:To accurately measure the injection quantity of a fuel injection valve in a state close to an actual operation state under wide-range conditions by measuring the displacement of a member due to an increased in the volume of an injection chamber corresponding to the injection quantity of liquid fuel. CONSTITUTION:A back pressure chamber 50 is supplied with gas of pressure corresponding to measurement conditions from a reservoir tank through a pressurized passage 70. The injection chamber 28 is filled with light oil, whose amount is so adjusted through a valve 31 that a partition plate 42 and a buffer member 44 float in the chamber 28 without contacting the inside of a lower body 24. Consequently, the chambers 28 and 50 are held at the same pressure. When the light oil is injected from the injection opening 26 of the injection valve 20, the amount of the light oil in the chamber 28 increases by the injection amount to move the partition late 42 to the right. A displacement sensor 52 detects the displacement quantity of the partition plate 42. Then the light oil is discharged to the tank after the injection amount is measured until the position of the partition plate 42 detected by the sensor 52 is within a specific range before the injection.

    VARIABLE STROKE DEVICE
    8.
    发明专利
    VARIABLE STROKE DEVICE 失效

    公开(公告)号：JPS63214501A

    公开(公告)日：1988-09-07

    申请号：JP4683487

    申请日：1987-03-03

    Applicant: TOYOTA MOTOR CORP

    Inventor： SAWADA DAISAKU ,  TAKAHASHI TAKASHI

    IPC: F16J3/04 ,  F02M47/02 ,  F02M51/06 ,  F02M63/00 ,  F15B7/00

    Abstract: PURPOSE:To prevent mixing of foam into working oil in a cylinder chamber and to prevent leakage of working oil, by encapsulating non-compressive fluid in an enclosed chamber in a sealing member and a cylinder chamber between pistons. CONSTITUTION:First annular flexible sealing member 11 is arranged around a projecting portion of a large diameter piston 4 with one end thereof being secured hermetically onto the outer wall face of cylinder housing 1. The other end of the first sealing member 11 is secured onto the outer wall face of the projecting portion of the large diameter piston 4, and one end of second annular flexible sealing member 12 is secured hermetically onto the outer wall face of the cylinder housing 1 while surrounding the projecting portion of a small diameter piston 5 from the cylinder housing 1 with the other end thereof being secured hermetically to the small diameter piston 5. Furthermore, non- compressive fluid is encapsulated in enclosed chambers 13, 14 and a cylinder chamber. With such arrangement, working oil is not mixed with foam and does not leak to the outside.

    UNIT INJECTOR
    9.
    发明专利
    UNIT INJECTOR 失效

    公开(公告)号：JPS6365167A

    公开(公告)日：1988-03-23

    申请号：JP21012686

    申请日：1986-09-05

    Applicant: TOYOTA MOTOR CORP

    Inventor： TAKAHASHI TAKASHI

    IPC: F02M57/02 ,  F02M59/36 ,  F02M59/46 ,  F02M63/00

    Abstract: PURPOSE:To improve the extent of responsiveness in fuel injection as well as to make a piezoelectric actuator compact in size, by tightly installing this piezoelectric actuator so as to cause the sliding direction of an overflow valve and its own expansion direction to accord with each other, and installing a rod and a transfer pressure chamber between this actuator and the overflow valve. CONSTITUTION:Impressed voltage onto a piezoelectric actuator 7 is turned on or off whereby this piezoelectric actuator 7 is expanded or contracted. This telescopic motion is transmitted to a rod 97 via a transfer pressure chamber 99. Since a diameter of this rod 97 is smaller than that of an end face of an actuator piston 87 of the piezoelectric actuator 7, if an end face at the side of the piston 87 of the piezoelectric actuator 7 is pressed by the piston 87, an end face at the side of the rod 97 of the transfer pressure chamber 99 is pressed and moved by the magnified displacement. On the other hand, the rod 97 is made contact with an overflow valve 71 so that it transmits this magnified displacement to the overflow valve 71. In addition, since a sliding direction of the overflow valve 71 and an expansion direction of the piezoelectric actuator 7 are accorded with each other, transfer force to the overflow valve 71 is transmittable with no loss.

    FUEL INJECTION CONTROLLER FOR INTERNAL COMBUSTION ENGINE
    10.
    发明专利
    FUEL INJECTION CONTROLLER FOR INTERNAL COMBUSTION ENGINE 失效

    公开(公告)号：JPS6350649A

    公开(公告)日：1988-03-03

    申请号：JP19475086

    申请日：1986-08-20

    Applicant: TOYOTA MOTOR CORP

    Inventor： TAKAHASHI TAKASHI

    IPC: F02D41/38 ,  F02D41/00 ,  F02M51/06

    Abstract: PURPOSE:To secure optimum fuel all the time and restrain a noise from occurring as well as to improve output and fuel consumption, by controlling fuel pressure in a fuel passage in excellent responsiveness according to a driving state. CONSTITUTION:The fuel passed through a flow regulating valve 15 from a fuel reservoir tank 17 is fed to a fuel injection valve 8 via a fuel supply passage having a constant volumetric accumulator 12 from a fuel supply pump 14. Here an electronic control circuit 70 sets desired pressure inside the fuel supply passage on the basis of each signal out of a crank angle sensor 84 or a driving state detecting device, a supercharging pressure sensor 76, a water temperature sensor 77 and a load sensor 79, and controls the flow regulating valve 15 on the basis of the detected result of a fuel pressure sensor 75. With this constitution, fuel pressure inside the fuel passage is responsively controlled to the desired pressure, thus the fuel to be sprayed out of the fuel injection valve 8 is optimally controllable according to the driving state.

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