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31. 发明专利

JP2000199607A CATALYTIC COMBUSTION HEATER 失效
公开(公告)号：JP2000199607A
公开(公告)日：2000-07-18
申请号：JP14777999
申请日：1999-05-27
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： YAMADA TOMOJI , HIROSE SHOJI , HOUCHIYOU SHINJI , OGINO ATSUSHI , NEGISHI YOSHIMASA
IPC分类号： F23D11/40
摘要： PROBLEM TO BE SOLVED: To obtain a catalytic combustion heater excellent in heat exchanging efficiency in which a combustible fuel can be vaporized well, good mixing can be carried out using a small quantity of assist gas having excess rate of 1-3 and heater power can be suppressed when the heater is started. SOLUTION: A section 2 for vaporizing a combustible fuel being supplied to a catalytic combusting section 1 is provided with a fuel ejector 4 and an assist gas supply section 5 is disposed in the fuel ejector 4. When a heater is started, a small quantity of assist gas is ejected from the assist gas supply section 5 to a vaporization fin 21 along with a combustible gas thus vaporizing the combustible fuel while preventing the vaporization fin 21 from being cooled. When the catalyst is activated, assist gas is also supplied from an assist gas introduction opening 6 so that uniform mixing can be carried out using a small quantity of assist gas thus realizing high heat exchanging efficiency.

32. 发明专利

JPH10103613A HEATING APPARATUS FOR CATALYTIC COMBUSTION 失效
公开(公告)号：JPH10103613A
公开(公告)日：1998-04-21
申请号：JP25799096
申请日：1996-09-30
申请人： NIPPON SOKEN
发明人： YAMADA TOMOJI , HOUCHIYOU SHINJI , HIROSE SHOJI
IPC分类号： F23D14/66 , F23C13/00 , F23C11/00
摘要： PROBLEM TO BE SOLVED: To make a carburetor efficiently absorb the heat of reaction at a catalyst during stationary combustion so as to make possible vaporization of fuel in a favorable state and furthermore prevent an abnormal elevation of temperature of combustible gas upstream by using as a carburetor part of a heat exchanger with a catalyst in a state of carrying an acidic catalyst. SOLUTION: By supplying combustion air fed from a combustion air-feeding means 500 to a fuel gas-feeding part 100 through a combustion air-leading in pipe 306 and past a cover covering the periphery of a heat exchanger with catalyst 200 the waste heat contained in the exhaust gas and the radiant heat released from the heat exchanger with catalyst 200 are collected and the combustion air is preheated. The fuel during stationary operation undergoes vaporization with part of the heat therefor from catalytic combustion, mixed with preheated combustion air in the fuel gas-feeding part 100, passed through a flow-straightening mesh plate 150 and turned virtually into an even flow and supplied to the heat exchanger with catalyst 200, oxidized with the catalyst on fins with catalyst 201, and discharged from an exhaust gas pipe 300. This method improves the heat exchange efficiency.

33. 发明专利

JPH09209980A MOTOR-DRIVEN AIR PUMP PROVIDED WITH SILENCER 失效
公开(公告)号：JPH09209980A
公开(公告)日：1997-08-12
申请号：JP1644296
申请日：1996-02-01
申请人： NIPPON SOKEN , DENSO CORP
发明人： YAMADA TOMOJI , ANDO YORIAKI , INAGAKI MITSUO , MATSUI KAZUNORI
IPC分类号： F04D23/00 , F04D29/66
摘要： PROBLEM TO BE SOLVED: To eliminate noise in a wide frequency zone by providing a resonator having a circular extension chamber on a coaxial outer circumference of an intake port between the intake port and an air pump cover. SOLUTION: A silencer is composed of an intake port 1 to introduce air to a motor-driven air pump, and an extension chamber 3 disposed circularly on an outer circumference of the intake port between the suction port and a pump cover 2. The extension chamber 3 is formed in such a form that it can be decomposed at a cutting line D-D, and it is connected to a side surface of the pump cover 2 by binding or the like. Air taken from the intake port 1 passes the extension chamber 3, and pressurized by fins 4 in an impeller 6 to be discharged from a discharge port 7. A height H of the expansion chamber 3 is set in such a value that a noise frequency fh to which reduction is the most necessary is sound speed/4H. A length L of the extension chamber 3 is set at L=1.2H, so columnar resonance is easy to be generated in the direction of the height H. Sound impedence in the extension chamber 3 is thus dispersed, thereby noise in a wide frequency zone can be eliminated.

34. 发明专利

JPH0972375A ACTIVE DAMPING DEVICE 失效
公开(公告)号：JPH0972375A
公开(公告)日：1997-03-18
申请号：JP17490696
申请日：1996-07-04
申请人： NIPPON SOKEN
发明人： YAMADA TOMOJI , INAGAKI MITSUO , ANDO YORIAKI , MATSUOKA HISANAGA
IPC分类号： B62D1/19 , F16F15/02 , G05D19/02 , G10K11/178
摘要： PROBLEM TO BE SOLVED: To reduce the generation of vibration by updating the filter factor of an FIR filter so that an addition signal level from an adding part is minimized. SOLUTION: A controller 1 to control operation of an actuator 3 comprises an FIR filter 14 to generate a control waveform signal S (t) having the same frequency and amplitude and opposite phase as those of vibration 5 through regulation of the phase and amplitude of a signal R (t); and a simulation part 7 for updating relating factors. The simulation part 7 comprises a first model forming part 8 to be inputted a signal R' (t) from a sign wave producing part 17; and an adaptive FIR filter 12 to update the filter factor of an FIR filter 14 to which a signal X (t) is inputted. An output signal N (t) from a first adding part 15 and an output signal Y (t) from the adaptive FIR filter 12 are added to generate an error signal e (t). A second addition part 16 is provided to output a signal to the adaptive FIR filter 12 so that the error signal e (t) is minimized.

35. 发明专利

JPH08166041A LIQUID SEALED ENGINE MOUNT 失效
公开(公告)号：JPH08166041A
公开(公告)日：1996-06-25
申请号：JP33248994
申请日：1994-12-12
申请人： NIPPON SOKEN
发明人： YAMADA TOMOJI , KATO MASAHIKO , MATSUOKA HISANAGA , KUZE KAZUMASA , SAITO KUNIO
IPC分类号： F16F13/26 , B60K5/12
摘要： PURPOSE: To provide an engine mount for improving vibration isolation performance at high speed without effecting on vibration performance at low speed and reducing high frequency vibration such as high speed booming noise effectively and exhibiting improved vibration control effect in wide frequency area. CONSTITUTION: A main liquid chamber A taking an elastic member 1 as a wall and the volume of which is changed by deformation of the elastic member 1 and an auxiliary liquid chamber B divided by a diaphragm 2 from the main liquid chamber A taking an elastic member film 4 as a wall the volume of which is variable and an orifice 21 communicating with the main liquid chamber A and the auxiliary liquid chamber B are mounted on a mount. A part of the diaphragm 2 is a movable plate 22 and fixed by an actuator 7 when low frequency vibration is inputted and the vibration is effectively reduced by forcing the movable plate 22 vibrate at the same phase with the input vibration when high frequency vibration is inputted.

36. 发明专利

JPH05288758A 失效
公开(公告)号：JPH05288758A
公开(公告)日：1993-11-02
申请号：JP9283992
申请日：1992-04-13
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： KATO MASAHIKO , MATSUOKA HISANAGA , YAMADA TOMOJI , KATO MASANORI , WAKAHARA KAORU
IPC分类号： G01P3/44
摘要： PURPOSE:To obtain a velocity measuring apparatus which includes phase data in an output signal when the sensor output is a sine wave, thereby to improve the resolving power for the measurement of the velocity. CONSTITUTION:The angular velocity measuring apparatus is comprised of contactless velocity sensors 211, 212 which output sine waves of the frequency proportional to the rotational speed of gears 201, 202 to be measured, preamplifiers 213, 214 for amplifying the outputs of the sensors, and a signal processor 22. In a first embodiment, after the spectrum on one side of the sensor output which is Fourier-transformed is operated by the signal processor 22, the spectrum is subjected to the inverse Fourier-transform to operate a real part analyzing signal and an imaginary part analyzing signal which constitute a pair of Hilbert's transformation. When the angle defined by the real part analyzing signal and the imaginery part analyzing signal is differentiated in time, the angular velocity of the gear is calculated. According to a second embodiment, the operation in the domain of time is used in place of the Fourier- transform, one-side spectrum and inverse Fourier-transform.

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