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1. 发明专利

JPH07184809A VACUUM CLEANER 失效
公开(公告)号：JPH07184809A
公开(公告)日：1995-07-25
申请号：JP33501893
申请日：1993-12-28
申请人： HITACHI LTD , HITACHI TAGA TECH KK
发明人： SUNAKAWA MASARO , SAGAWA KOICHI , OZAWA MORIO , TSURUTA NAOTO , ODAWARA HIROSHI , KAWAUCHI SEIICHI
IPC分类号： A47L9/00
摘要： PURPOSE:To improve the following-up property of a cleaner body by supporting a pair of rear wheels with the cleaner body so that the wheels are inclined to have a smaller downward interval between the opposed wheels and forming the upper side of the cleaner body above the wheel in the eaves-like form for covering the rear wheel. CONSTITUTION:Rear wheels 28a, 28b have the large diameter equal to about 2/3 of the height dimension H of a cleaner body 10 and are supported to be inclined from the vertical line by about 5 degrees on both left and right sides in the rear lower parts of the cleaner body 10. As a result, the upper edges of the rear wheels 28a, 28b are spaced from the side surfaces of the cleaner body 10 to be opened to the outside so that the interval between the rear wheels 28a, 28b and the cleaner body 10 is enlarged to facilitate the insertion of power supply cord or the like. Thus, fenders 34a, 34b shaped to project in the eaves- like form are provided to have the width dimension (t) to cover the opened part from the width dimension D of the profile of the cleaner body 10 to the rear wheels 28a, 28b. The fenders 34a, 34b have the front half rising arcuately from the rear end of a bumper 36 and the rear half extending horizontally rearward.

2. 发明专利

JPH0285037A INFORMATION COLLECTING DEVICE FOR VEHICLE IN MOVEMENT 失效
公开(公告)号：JPH0285037A
公开(公告)日：1990-03-26
申请号：JP23650288
申请日：1988-09-22
申请人： HITACHI LTD
发明人： KANEYASU MASAMI , NOGI TOSHIJI , MIKI MASAYUKI , TAKEZAKI JIRO , TSURUTA NAOTO
IPC分类号： B60R16/02 , B60R11/02
摘要： PURPOSE:To provide possibility of acquiring minimal possible external information while sitting in an acoustically sealed room, for ex. a car cabin, by selecting necessary pieces among external information taken in by a take-in means, and reproducing these selected pieces of external information using a reproducing means. CONSTITUTION:Cars A, B running on a road are each equipped with an acoustic signal generating apparatus 11, acoustic signal receiving apparatus 12, speaker 13, and microphone 14, of which the acoustic signal generating apparatus 11 generates an audible frequency signal and unaudible frequency signal, which are emitted from the speaker 13 in the form of sonic waves. At the acoustic signal receiving apparatus 12, a sonic wave collecting means 20 as a microphone 14 converts the sonic waves into electric signals, which are analyzed by a Fourier converter 21 and selected by a specific frequency selecting means 22, and a kraxion signal generating means 23 generates a kraxion signal. The signal Fourier converted is integrated by a signal integrating circuit 24, and accordingly an external noise level judging means 25 generates signals.

3. 发明专利

JPS57113960A FUEL CONTROLLER 失效
公开(公告)号：JPS57113960A
公开(公告)日：1982-07-15
申请号：JP18850180
申请日：1980-12-29
申请人： HITACHI LTD
发明人： KASHIWATANI MINEO , NAKAGAWA TOORU , YAMADA KINSAKU , KAMIFUJI HIROSHI , OOYAMA TAKASHIGE , KUROIWA HIROSHI , TSURUTA NAOTO
IPC分类号： F02M69/00
摘要： PURPOSE:To eliminate the need for enhancing the accuracy of a fuel control valve, by providing a pressure regulator on the downstream side of the fuel control valve in a fuel supply passage connecting to a carburetor. CONSTITUTION:An air control valve 15 in a bypass passage 5 attached to an intake passage 2 and a needle 16 provided in a passage 10 associated with a fuel tank 13 are controlled relatively to each other by a solenoid device 17 put under control of CPU8. That is, it is constituted in such a way that fuel supply is increased as a flow rate of air is decreased. Fuel in the fuel tank 13 is led to the fuel control valve 16 via a pump 12 and a pressure regulator 11, while a pressure difference between the pressure regulator 11 and a fuel pressure regulator 20 is lessened by the provision of the fuel pressure regulator 20. Accordingly, it is unnecessary to enhance the accuracy of the fuel control valve 16 and an orifice 16A so much.

4. 发明专利

JPS57113958A FUEL CONTROLLER 失效
公开(公告)号：JPS57113958A
公开(公告)日：1982-07-15
申请号：JP18849780
申请日：1980-12-29
申请人： HITACHI LTD
发明人： KASHIWATANI MINEO , NAKAGAWA TOORU , YAMADA KINSAKU , KAMIFUJI HIROSHI , OOYAMA TAKASHIGE , KUROIWA HIROSHI , TSURUTA NAOTO
IPC分类号： F02M69/00
摘要： PURPOSE:To increase the fuel to be supplied during acceleration, by providing additional fuel control device which imparts fuel pressure by means of a diaphragm mechanism responding to change of intake regative pressure and discharges fuel through a channel other than normal fuel passages. CONSTITUTION:When a throttle valve 3 is abruptly opened to be accelerated, the intake negative pressure in the downstream of the throttle valve 3 should rapidly approach an atomspheric pressure. In this time, a pressure which is applied to an air chamber 31 having a suction communication passage 28 quickly approaches the atomspheric pressure, causing a diaphragm 22 to move rightward, so that a fuel chamber 30 is increased in pressure. And then, when this pressure increases to overcome that of a spring 24 of the check valve 23, the valve 23 is opened and fuel is discharged from a pump nozzle 26.

5. 发明专利

JPS57113927A FUEL CONTROL DEVICE 失效
公开(公告)号：JPS57113927A
公开(公告)日：1982-07-15
申请号：JP18850080
申请日：1980-12-29
申请人： HITACHI LTD
发明人： KASHIWATANI MINEO , NAKAGAWA TOORU , YAMADA KINSAKU , KAMIFUJI HIROSHI , OOYAMA TAKASHIGE , KUROIWA HIROSHI , TSURUTA NAOTO
IPC分类号： F02D41/34
摘要： PURPOSE:To obtain the correct control of air-fuel ratio without any delay of time by increasing fuel by means of a fuel control valve when an air control valve is operated to decrease the air flowing in a bypass passage. CONSTITUTION:A hot wire type flow meter 6 is arranged in a bypass passage 5 provided in a Venturi tube 4, and its signal is sent to a computer 8 and compared with a fixed set value. When the value of the signal is smaller than the set value, the computer 8 issues a signal to increase the amount of air flowing in the bypass passage 5 to an electromagnetic valve 14. On the contrary, when the value of the signal is greater than the set value, the computer 8 issues a signal to decrease the amount of air flowing in the bypass passage 5 to the electromagnetic valve 14. In this construction, at the time of a great air flow, the electromagnetic valve 14 is operated to close a valve 15 for reducing the air flowing in the bypass passage 5, and in accordance with this operation, a valve 16 is operated to increase fuel for supplying to a nozzle 6.

6. 发明专利

JPS56104131A INTERNAL COMBUSTION ENGINE CONTROL DEVICE 失效
公开(公告)号：JPS56104131A
公开(公告)日：1981-08-19
申请号：JP678480
申请日：1980-01-25
申请人： HITACHI LTD
发明人： OOYAMA NOBUSHIGE , SASAYAMA TAKAO , SUGAWARA TOORU , AMANO MATSUO , YAMAUCHI TERUO , IWATA MASAHIKO , TAKAHASHI HIDEJI , TSURUTA NAOTO
IPC分类号： F02D41/06 , F02D19/08 , F02D41/14
摘要： PURPOSE:To appropriately operate an engine by controlling air-fuel ratio at perfect explosion by detecting a rate of alcohol of alcohol mixed fuel for an engine, and afterwards, by controlling memorized air-fuel ratio. CONSTITUTION:Signals from an O2 sensors 33, a catalyzer temperature sensor 34, a cooling water temperature sensor 35, a speed of rotation sensor 36, a negative pressure sensor 37, a throttle valve opening sensor 38, and an alcohol sensor 39 are input to a computer 40 to control a by-pass air valve 19, a fuel injection valve 26, a distributor 30, and an exhaust gas return flow control valve 31. Then, at perfect explosion of an engine, an injection rate from the injection valve 26 is determined in accordance with the signal from the alcohol sensor 39, and the operation afterwards is determined by feedback control of memorized air-fuel ratio by the O2 sensor 33, and furthermore, ignition timing, etc. are also controlled.

7. 发明专利

JPH08151979A PUMP DEVICE 失效
公开(公告)号：JPH08151979A
公开(公告)日：1996-06-11
申请号：JP29622094
申请日：1994-11-30
申请人： HITACHI LTD
发明人： HONDA TOMOTAKA , TANABE MASATOSHI , TSURUTA NAOTO
IPC分类号： F04D15/00 , F04B23/02 , F04B41/00 , F04B49/06
摘要： PURPOSE: To attain improving installability and in-bringability by making a device bringable in an installation site even through a half KEN frontage, by setting size (width × depth × height) of the pump device to each specific value or less, in the pump device of automatically starting/stopping an operation according to opening/closing a faucet. CONSTITUTION: Two sets of pump heads 2, 3 are mounted on a common bed of a pump device, to connect gate valves 4, 5 to a suction side of each pump head 2, 3. Connecting to a water source through a bypass pipe, the downstream of the pump heads 2, 3 is connected to each faucet through a joining pipe and delivery pipe. A pressure sensor and a pressure tank are mounted in the joining pipe. A frame 13 is set up on the common bed 1, to mount in an upper part of this frame a control box 14. By setting respectively to 900mm or less a size (dimension W×D×H) of the pump device thus obtained, even when a bringing-in frontage of an installation site is a half KEN, the device can be carried in, also to make attainable space saving.

8. 发明专利

JPH0119065B2 失效
公开(公告)号：JPH0119065B2
公开(公告)日：1989-04-10
申请号：JP7819581
申请日：1981-05-22
申请人： HITACHI LTD
发明人： KASHIWATANI MINEO , YAMADA KINSAKU , TANABE YOSHUKI , OOYAMA TAKASHIGE , KUROIWA HIROSHI , TSURUTA NAOTO
IPC分类号： F02D41/34 , F02D3/00 , F02M51/02 , F02M69/00

9. 发明专利

JPS5896163A FUEL CONTROLLING APPARATUS 失效
公开(公告)号：JPS5896163A
公开(公告)日：1983-06-08
申请号：JP19286181
申请日：1981-12-02
申请人： HITACHI LTD
发明人： KASHIWATANI MINEO , TANABE YOSHIYUKI , YAMADA KINSAKU , TSURUTA NAOTO
IPC分类号： F02D41/34 , F02D41/08 , F02D41/18 , F02M51/02
摘要： PURPOSE:To control properly mixing ratio in an apparatus provided in a by- pass air path bypassing an intake path with a hot wire sensor, by feed-backing constantly the output of the hot wire in small air flow. CONSTITUTION:By applying feedback such that air amount passing through a bypass air path 18 is maintained approximately constant by a proportional solenoid valve 48 for controlling a needle valve 46 is obtained an variation amount of air sucked in an engine while a fuel needle valve 42 is also controlled by the proportional solenoid 48. On the way of the bypass path 18 is disposed a hot wire sensor 20. By rendering set level value compared with the output of the hot wire sensor smaller than the output of the hot wire sensor in a fully opened air regulating valve without feedback in idling can be throttled the bypass path 18 through the solenoid valve 48 also in idling so that the set value can be fed back.

10. 发明专利

JPS57193762A FUEL CONTROLLER 失效
公开(公告)号：JPS57193762A
公开(公告)日：1982-11-29
申请号：JP7819881
申请日：1981-05-22
申请人： HITACHI LTD
发明人： KASHIWATANI MINEO , TANABE YOSHIYUKI , YAMADA KINSAKU , OOYAMA NOBUSHIGE , KUROIWA HIROSHI , TSURUTA NAOTO
IPC分类号： F02D41/34 , F02D3/00 , F02M69/00 , F02M69/46
摘要： PURPOSE:To promote pulverization of fuel at full open low speed operation of an engine, by providing an auxiliary valve, having a notch, in the upstream of a throttle valve. CONSTITUTION:An auxiliary valve 28 is provided in the upstream of a throttle valve 14, and a small Venturi 30A is arranged to a notch 28A of said auxiliary valve 28, further fuel is fed to this small Venturi 30A. At full open low speed operation of an engine, such as upgrade running operation, when the throttle valve 14 is fully opened further with low speed, a flow of air decreases to displace the auxiliary valve 28 to the direction of being closed. In consequence, a flow speed of air, passing through the small Venturi 30A, is increased to promote pulverization of fuel.

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