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    • 84. 发明专利
    • DUPLEX COMPUTER SYSTEM
    • JPS6279533A
    • 1987-04-11
    • JP22079985
    • 1985-10-03
    • HITACHI LTD
    • UESUGI MARIOINOUE HIROSHIOKUDERA SUKENAO
    • G06F11/18
    • PURPOSE:To make the processing of both computers coincident in the computer constituted in a double system by permitting the access to the same table by a program to only one program at any time. CONSTITUTION:In a resources releasing waiting request retrieving part 37, a double system control device 7 completes the synchronization, searches the synchronizing reservation request of a program P2' which waits for the releasing of the resources and instructs the processing to a resources reservation processing part 38. The resources reservation processing part 38 executes the reservation of a table T1 and reports the permitting signal through permitting sending parts A33 and B34 to both computers. This is received, the program P2' of both computers 3 and 4 restarts the execution, and the information is respectively read from the table T1 of the own computers 3 and 4. The information read at such a time is the information where a program P3 is written in both computers, and therefore, the information is coincident in both the computers 3 and 4. Thus, the processing of both the computers can be always coincident.
    • 85. 发明专利
    • FREQUENCY ANALYZER
    • JPS6269169A
    • 1987-03-30
    • JP20860885
    • 1985-09-24
    • HITACHI LTD
    • INOUE HIROSHIYAMAZAKI ISAOYAMAZAKI SHIGEYUKI
    • G01R23/17
    • PURPOSE:To reduce measurement error due to aberration of the converging lens, by providing the first lens system converting the emitted light from a light source to a parallel luminous flux, and the second lens system converting on an acoustic detector. CONSTITUTION:A signal to be measured inputted at a terminal 7 is converted into an ultrasonic signal through a transducer 4. A luminous flux 9 from a light source 1 is diffracted and deflected at an acoustooptic medium 3 in response to the ultrasonic signal, and the diffracted light 10 is converted on a light position detector 6. The emitted light from the second light source 15 is converted to a parallel luminous flux 18 through lenses 16, 17, diffracted and deflected at the medium 3 by the ultrasonic signal like the luminous flux 9, and is made incident through a lens 19 on a light intensity detector 20. Then a peak detecting circuit 21 detects the peaks in the output of the detector 20, and by sampling the output of the detector 6 at that time by a sampling circuit 22, the output of the circuit 22 can be scarcely affected by the aberration of a converging lens 5. thus, the frequency of a signal to be measured can be accurately analyzed without being affected from aberration of lenses.
    • 86. 发明专利
    • CATALYTIC BURNER
    • JPS603422A
    • 1985-01-09
    • JP11089983
    • 1983-06-22
    • HITACHI LTD
    • INOUE HIROSHI
    • B01D53/86F01N3/28F23R3/40B01D53/36
    • PURPOSE:To decrease the emission of nitrogen oxides and enhance the efficiency of burning, by stratifying upstream and downstream lattice-like fluid passages across each other to form a heat-conductible catalytic layer unit. CONSTITUTION:In a catalytic layer unit 20, upstream latticelike fluid passages 21 and downstream latticelike fluid passages 22 are stratified perpendicularly across each other. A mixture 8 consisting of burning air and fuel and previously heated by a preheating burner reacts on the surface of a catalyst while flowing through the passages 21, 22 of the catalytic layer unit 20, so that the mixture is changed into combustion gas 9 going out. Once the catalytic reaction is begun, even if the temperature of the mixture 8 flowing into the upstream passages 21 becomes lower than the catalytic ignition temperature, the reaction heat in the downstream passages 22 raises the temperature of the catalyst in the upstream passages 21 through a catalyst carrier so that the catalyst on the surfaces of the upstream passages is kept not lower than the ignition temperature.
    • 87. 发明专利
    • Forced air supply type combustion device
    • 强制空气供应型燃烧装置
    • JPS59147923A
    • 1984-08-24
    • JP1892583
    • 1983-02-09
    • Hitachi Chem Co LtdHitachi Ltd
    • INOUE HIROSHIOKAMOTO YOSHIOIWAI KAZUMIKUNUGI TAKAFUMISHIMAZAKI SATOSHI
    • F23D14/02
    • PURPOSE: To keep the distribution of secondary air uniform and yet prevent premixture from leaking to the secondary air side by a structure wherein a secondary air chamber is partitioned by the projections arranged in the secondary air chamber into the same number of chambers as the number of secondary air passages.
      CONSTITUTION: A secondary air chamber 8 is partitioned by projections 26 into three chambers 8aW8c so that the instability of the distribution of the secondary airs in the respective chambers 8aW8c to the flow holes 10 provided in the respective chambers 8aW8c due to the flow speed distribution within the respective chambers 8aW8c is dissolved. Accordingly, even when the flow rate of the secondary air changes, the distribution ratio of the quantity of the secondary air to the flow holes of the respective chambers 8aW8c can be kept constant. In addition, because burners 2 are supported by engaging both the heads 26a of rail-shape projections 26 integrally formed with a burner main body 1a and the engaging parts 27 provided on the top of the burners 2 with each other, the trouble to bolt the burners to the burner main body is saved and at the same time the leakage of premixture through the threaded holes of bolts to the secondary air side can be prevented.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:为了保持二次空气分布均匀,并且通过这样的结构防止预混合物泄漏到二次空气侧,其中二次空气室被布置在二次空气室中的突起分隔成与数量相同数量的室 二次空气通道。 构成:二次空气室8由突起26分隔成三个室8a-8c,使得在相应的室8a-8c中的二次空气分配到设置在各个室8a-8c中的流动孔10的不稳定性 相应的室8a-8c内的流速分布被溶解。 因此,即使当二次空气的流量变化时,二次空气与各室8a-8c的流通孔的分配比也可以保持不变。 此外,由于燃烧器2通过将与燃烧器主体1a一体形成的轨道状突起26的头部26a和设置在燃烧器2的顶部上的接合部27彼此接合而支撑,故将螺栓 燃烧器主体的燃烧器被节省,并且同时可以防止预混合物通过螺栓的螺纹孔泄漏到二次空气侧。
    • 88. 发明专利
    • FLOW PATE CONTROL VALVE
    • JPS58137680A
    • 1983-08-16
    • JP1958782
    • 1982-02-12
    • HITACHI LTD
    • INOUE HIROSHI
    • F16K31/06
    • PURPOSE:To obtain a wide proportional range of input to output without reducing the follow-up property of a plunger even if the period of a pulse voltage is short by a method wherein an electromagnet, operating the plunger with the period in accordance with an input signal, and another electromagnet, operating the plunger into a reverse direction when the first electromagnet is not energized, are provided in this valve. CONSTITUTION:When the pulse voltage (a) having the period in accordance with the input signal, is impressed to the electromagnetic coil 1, the electromagnet A is excited and the magnetic plunger 5 is attracted by a magnetic pole 3 while a valve body 6 is also lifted up and a valve port 10 is opened to flow gas as shown by arrow signs due to the pressure difference between the fore and aft of the valve port 10. When one pulse, impressed to the coil 1, is finished and the coil 1 is deenergized, another voltage (b) is impressed to another electromagnetic coil 1' and the plunger 5 is attracted to another electromagnetic pole 4 while the valve body 6 is also moved downwardly and the flow of the gas is interrupted. Accordingly, the response of the plunger 5 becomes prompt and the opening and closing of the valve may be effected by following up the input signal (impressed voltage) well.