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91. 发明专利

JPS6415276A METHOD FOR BRAZING AL MATERIALS 失效
公开(公告)号：JPS6415276A
公开(公告)日：1989-01-19
申请号：JP16836087
申请日：1987-07-06
申请人： DIESEL KIKI CO
发明人： NAKAMURA MIKI
IPC分类号： B23K1/19 , F28D1/047 , F28F1/12
摘要： PURPOSE:To maintain the corrosion proof and brazing property by metallizing or plating a Zn alloy on the surfaces of Al materials and assembling the Al materials temporarily and setting up these in a heating furnace and forming the inside of the furnace to the specific degree of vacuum to heat it up to the melting temperature of brazing filler metal. CONSTITUTION:A heat exchanger main body consists of a tube 1, fins 2 and unions 3 and the tube 1 is molded by extruding the Al materials containing Cu and formed flat on the cross section having paths 1a of media and bent zigzag. The fins 2 are formed in a wave-shape of the Al materials containing Zn and the unions 3 are also formed of the Al materials. The Al materials are assembled temporarily by an assembling device and set up in the heating furnace and heated to the melting temperature of the brazing filler metal with the degree of vacuum of 0.04-0.005 Torr to perform the brazing. By this method, the brazing to satisfy both the corrosion proof and brazing property at the heating treatment stage is made possible and moreover, since flux is not used, the cleaning is not necessary.

92. 发明专利

JPS63317809A TROUBLE DIAGNOSING DEVICE 失效
公开(公告)号：JPS63317809A
公开(公告)日：1988-12-26
申请号：JP15240887
申请日：1987-06-20
申请人： DIESEL KIKI CO
发明人： ARAI KENJI , TOTANI TAKAAKI
IPC分类号： G01D21/00 , G01M17/007 , G01R31/00 , G05B23/02 , G06F11/22
摘要： PURPOSE:To realize detection of the troubles of plural switches by a means which detects the rise and fall edges of the switches at the time of the trouble diagnosing and keeps lamps turned on for a prescribed time. CONSTITUTION:A check pattern that usually does not occur virtually is set previously at a check mode deciding circuit 8. This check pattern is compared with an input pattern received from an interface 2. When the coincidence is obtained between both patterns, a switch circuit 15 is set at the solid line side for diagnosis of troubles. When switches 101-107 connected to a switch interface circuit 3, an edge circuit 11 detects the rise and fall edges of those switches and drives multivibrators 12 and 13 for a prescribed period. A pilot lamp 17 is turned on via a transistor 16 as long as the switches 101-107 are normally working. While the circuit 11 is unable to detect the rise and fall edges of said switches in case these switches are not normal. Thus the lamp 17 is not turned on.

93. 发明专利

JPS63306272A UNIFORM PRESSURE FEEDER VALVE FOR FUEL INJECTION PUMP 失效
公开(公告)号：JPS63306272A
公开(公告)日：1988-12-14
申请号：JP14088987
申请日：1987-06-05
申请人： DIESEL KIKI CO
发明人： YOSHIZU FUMITSUGU
IPC分类号： F02M59/46
摘要： PURPOSE:To suppress fluctuation of injecting quantity even when open-valve pressure has varied due to aging by providing a residual pressure regulation valve for varying residual pressure of injection vavle corresponding to variation of open-valve pressure of injection nozzle. CONSTITUTION:When an engine is rotating with high speed, a residual pressure regulation valve 4 opens and the pressure in an injection tube 11 lowers to such level as being determined by setting pressure of a return side feeder valve 5. When the engine is rotating with low speed, i.e. in a region having low injection rate, a regulation valve body 21 closes a hole 23 of a regulation valve body 20 upon finish of injection and the residual pressure regulation valve 4 does not open, and thereby fuel in the injection tube 11 is simply returned through an orifice 26 of the regulation valve body 21. Consequently, when open- valve pressure of a nozzle 12 lowers due to aging, residual pressure in the injection tube 11 lowers correspondingly. As a result, even if the open-valve pressure of the nozzle 12 lowers, the pressure in the injection tube 11 does not exceed considerably over the open-valve pressure, resulting in constant injection quantity.

94. 发明专利

JPS63297112A AIR CONDITIONER FOR VEHICLE 失效
公开(公告)号：JPS63297112A
公开(公告)日：1988-12-05
申请号：JP13088287
申请日：1987-05-27
申请人： DIESEL KIKI CO
发明人： IIDA KATSUMI
IPC分类号： B60H1/00
摘要： PURPOSE:To improve comfortableness by providing a hysteresis in a range over a prescribed air quantity and suppressing the variation of the noise quality of the air cutting sound, in a control pattern in which a blower is controlled to a low or high blow air quantity according to a control signal region. CONSTITUTION:A controller calculates the synthetic signal T in a synthetic signal calculating means 11a on the basis of the detection signal of each sensor, and calculates the aimed wind quantity value BLO on the basis of the synthetic signal T in a wind quantity calculating means 11b. The aimed wind quantity BLO is compared with a prescribed wind quantity value alpha in a judging means 11c, and if BLO alpha, the control pattern having a hysteresis is calculated, and a blower is controlled. Therefore, in the region where the air blowing quantity is larger, the frequent variation of the air blowing quantity and the variation of the sound quality of the air cutting sound can be suppressed by carrying out the control having a hysteresis, and comfortableness can be improved.

95. 发明专利

JPS63295830A FUEL INJECTION DEVICE 失效
公开(公告)号：JPS63295830A
公开(公告)日：1988-12-02
申请号：JP12551687
申请日：1987-05-22
申请人： DIESEL KIKI CO
发明人： TAKEGAWA YORIYUKI
IPC分类号： F02D41/04 , F02D41/00
摘要： PURPOSE:To enable an engine speed to be accurately estimated even when the first speed detector causes a trouble, by providing the second speed detector which estimates the engine speed from a pulsation of pressure in an intake and exhaust pipe. CONSTITUTION:The speed of an engine 1, when it is normal, is detected by the first speed detector 2, and its detecting signal is input to an injection control arithmetic part 4. The first speed detector 2, when it causes a trouble due to some cause, is switched to the second speed detector 3 by a selector circuit 21. And detecting a pulsation of pressure in an exhaust pipe 6 by a pulsation detector 7 and estimating the speed of the engine 1 through an engine speed converter circuit 8, the second speed detector 3 inputs a signal, corresponding to this speed, to the injection control arithmetic part 4. Accordingly, even when the speed detector 2 causes a trouble, fuel injection of a fuel injection device main unit 5 is continuously controlled.

96. 发明专利

JPS63285469A ANGLE OF ROTATION-TIME CONVERTER 失效
公开(公告)号：JPS63285469A
公开(公告)日：1988-11-22
申请号：JP12024187
申请日：1987-05-19
申请人： DIESEL KIKI CO
发明人： ISHIKAWA MASATAKA
IPC分类号： G01P3/481 , G01P3/489
摘要： PURPOSE:To correct detection errors, by correcting a time interval measured using a correction factor determined by an actual value of a unit angle of rotation of a rotation sensor and a designed value of the unit angle of rotation thereof. CONSTITUTION:A time interval of a scale pulse measured by a time interval measuring means is applied to a correction output means. A first correction factor reading means operates at a high rotation area of an object to be inspected and reads a correction factor at a rough accuracy from a correction factor memory means by setting the number of reading bits read to a small value and applies a correction factor read to a correction output means. A second correction factor reading means operates at a low rotation range of the object being inspected and reads a correction factor at a high accuracy from the correction factor memory means by setting the number of reading bits to a large value and applies a correction factor read to the correction output means. The correction output means corrects a time interval measured by the time interval measuring means by the correction factor from the first or second correction factor reading means to output.

97. 发明专利

JPS63285262A FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS63285262A
公开(公告)日：1988-11-22
申请号：JP12207887
申请日：1987-05-19
申请人： DIESEL KIKI CO
发明人： HASEGAWA TAKAO
IPC分类号： F02M65/00
摘要： PURPOSE:To damp residual vibration in a short time to improve a detecting function for injection start time by forming the sensor element parts of a piezoelectric sensor of piezoelectric material having the low modulus of elasticity. CONSTITUTION:In a fuel injection nozzle, one end of a nozzle spring 7 to press a needle valve is provided with a piezoelectric sensor 9 to generate an output signal when the needle valve lifts. The sensor element parts 14a, 14b of the piezoelectric sensor 9 are formed of piezoelectric material having the low modulus of elasticity. The residual vibrations of the piezoelectric sensor 9 itself and the nozzle spring 7 are therefore absorbed. Thus the generation of residual signal among the output signals can be controlled, and moreover injection start time can be exactly detected.

98. 发明专利

JPS63280950A CONTINUOUSLY VARIABLE TRANSMISSION 失效
公开(公告)号：JPS63280950A
公开(公告)日：1988-11-17
申请号：JP11237787
申请日：1987-05-11
申请人： DIESEL KIKI CO
发明人： AOKI HACHIRO , KOBAYASHI TADASHI , TAKEDA YUICHI
IPC分类号： F16H9/18
摘要： PURPOSE:To aim at miniaturization of a device by using a V-belt type continuously variable transmission device, which includes a hydraulic servo mechanism, to operate the accessory of an automobile engine in such a manner that, when the engine speed is low, it is rotated at a high speed, while, when the engine speed is increased, it is decelerated. CONSTITUTION:When the engine speed is increased, a flyweight 5 is caused to press a holder 26 by the centrifugal force, and then, such force overcomes the spring force of a spring 8, so that a servo valve 6 moves back to cause the oil through 16 for a power piston 7 to be closed, and the supply of the engine oil to a power piston chamber 70 is cut off. When the valve 6 moves still further, oil in the piston chamber 70 fluxes into a drain chamber 33, and then sent to an oil pan by means of a discharge mechanism 20. Thereby, the pressure which has been applied to the piston 7 is lowered, and then, the piston 7 follows the valve 6 so that the oil through 16 is caused to close, and an oil through 17 is also caused to close. Hereupon, a slide pulley 3b is moved to the open side, and at the driven shaft side, a movable pulley is moved by virtue of a spring force in the closing direction. Therefore, an accessory is operated at a decelerated number of revolutions.

99. 发明专利

JPS63277841A FUEL INJECTION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS63277841A
公开(公告)日：1988-11-15
申请号：JP10929587
申请日：1987-05-01
申请人： DIESEL KIKI CO
发明人： YAMADA KEIICHI , TAKAGI NOBUKAZU
IPC分类号： F02D41/38 , F02D41/00
摘要： PURPOSE:To reduce the mechanical noise by adjusting a pulse width of a driving pulse for controlling the operation of a fuel pumping solenoid valve and starting main injection before ending of pilot injection. CONSTITUTION:When an engine is in an operational condition where pilot injection should be executed, a control circuit 5 reads an output signal from a nozzle lift sensor and determines whether or not the output signal has fallen twice in one injection stroke. If NO, stop control of a solenoid valve 20 is increased by a predetermined value, and if YES, the stop control is decreased by a predetermined value. In an actual operation of the solenoid valve 20, a pilot injection time and a main injection time are continuously established under a separate condition. Accordingly, an injection nozzle 10 is seated only once in one injection stroke to thereby reduce a seating noise. Accordingly, a mechanical noise may be reduced as maintaining the effectiveness of the pilot injection.

100. 发明专利

JPS63268043A RESETTING SYSTEM FOR MICROCOMPUTER 失效
公开(公告)号：JPS63268043A
公开(公告)日：1988-11-04
申请号：JP10360687
申请日：1987-04-27
申请人： DIESEL KIKI CO
发明人： OKUBO MASAO
IPC分类号： G06F11/30 , G06F3/06 , G06F13/00
摘要： PURPOSE:To eliminate an exclusive port and to simplify the constitution of a microcomputer resetting system by using a watchdog timer which is reset by a pulse train of the input/output data. CONSTITUTION:The input/output data are periodically transferred via a bus 8 as long as a microcomputer 9 is normally operating. thus a watchdog timer 12 is reset by a trigger circuit 11 and a resetting signal is never given to the microcomputer 9. While the periodical transfer of the input/output data is not carried out any more when the microcomputer has a runaway. Then a data input/output port of the microcomputer 9 is fixed at an H or L level and there fore the timer 12 is not reset by the circuit 11. As a result, a resetting signal is applied to the microcomputer 9 from the timer 12 passed.

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