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序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
241 JPH0120369B2 - JP17092881 1981-10-26 JPH0120369B2 1989-04-17 YAMAMOTO YOSHIO; UNO TAKASHI; FUJEDA HIROSHI; KONO HIROYUKI
242 Device with air flowmeter for internal combustion engine JP25708486 1986-10-30 JPS62162737A 1987-07-18 BUORUFUGANGU PORUTO; BUORUFUGANGU BUAIPURAA; ETSUKUHARUTO KERUN; TOOMASU HANNEBUARUTO; RAINAA BUAINGERUTONAA
243 Fluid measuring device JP17242085 1985-08-07 JPS61111421A 1986-05-29 KOBAYASHI HIROSHI
PURPOSE:To attain effect rectification in a small space to attain the precise measurement of liquid by limiting the ratio of the thickness of a flow straightener on the upper side in the flow direction of a flow straightening element to a cell size within a prescribed range. CONSTITUTION:Suction air is made to flow into a flow straightener 6, a vortex generator 5, a rectifier 7, a slottle valve 4, and an engine body 1 successively. The vortex generator 5 generates a Karman's vortex at a period proportional to the flow rate of the suction air. Thereby, the flow rate of the suction air can be measured by detecting the generating period or frequency of the Karman's vortex by a heat wire or a vortex detector. Since the flow straightening effect is suddenly reduced if the ratio D/W of the thickness D of the flowstraightening element of the cell size in the suction air flow meter is dropped less than 3, it is practically preferable to keep the ratio D/W at about 2.5 or more. Therefore, an effective result can be obtained in pressure loss by selecting a value more than 2.5 as small as possible under the consideration of the effective utilization of a space.
244 Differential pressure generator JP22211784 1984-10-24 JPS61100615A 1986-05-19 HARASHIMA TOSHIHIKO; NAGASAWA YOSHIYUKI
PURPOSE:To prevent the adhesion of scale to a differential pressure generator for measuring a flowmeter, by applying insulating ceramic to the surface of a metal material by coating or vapor deposition. CONSTITUTION:The surface of an orifice plate 1 or a float nozzle 2 is constituted of an insulating material. For example, as a mean for constituting the surface shown by the oblique line part 5 of the drawing from the insulating material, there is a system for constituting a differential pressure generator from insulating ceramic or a system for covering a surface with the insulating material by using a metal material such as stainless steel as a base material. As mentioned above, by applying the ion plating of ceramics having non-affinity to scale to the surface of the metal material, the densification of the surface of the metal material is attained and the adhesion of scale thereto can be prevented.
245 JPS6049843B2 - JP21163781 1981-12-29 JPS6049843B2 1985-11-05 SHINKAWA MAKOTO
246 Correcting method of measured value of flow rate of exhaust gas JP2559684 1984-02-14 JPS60169717A 1985-09-03 OOMAE MATSUO; KURIBAYASHI TAKASHI; MURASAWA YASUO; OKUNO KEIGO
PURPOSE:To correct the measured value readily without addition of equipment, by obtaining the ratio between the amount of migration to exhaust gas and the amount of exhaust in a process, in which the amount of the component is changed with respect to at least one specified component in the exhaust gas. CONSTITUTION:The CO concentration and the CO2 concentration in exhaust gas from a gas analyzer 2 are transmitted to an operating device 5. The flow rate of the exhaust gas is transmitted to the operating device 5 from a gas flowmeter 3. The weight of carbon, which is included in the exhausted gas and exhausted, is computed by a computing expression, which is memorized in the device 5. Weights WA1 and WB of melted steel and carbon concentrations [CA1] and [CB] of said steel in a furnace before and after smelting, amount [WA2] of inputted secondary raw material and carbon concentration [CA2] of said material are set by a settting device. The weight of the carbon, which is accompanied by the exhaust gas and migrated, is computed. A correcting coefficient is computed by the device 5 based on the weight of carbon, which is included in the exhaust gas and exhausted, and the weight of the carbon, which is migrated together with the exhaust gas. The measured value of the flow of the gas from the gas flowmeter 3 is multiplied by the correcting coefficient, and the corrected flow rate of the exhaust gas is displayed.
247 Rectifier for biphase fluid of solid and gas JP406784 1984-01-12 JPS60148821A 1985-08-06 DOI YUUJI; SAKAKIBARA MORIHIKO; AMANO HIROSHI; MORIMATSU YOSHIHIRO; KAWAHARA HIROSHI; MATSUSHITA SHIGETADA; MAIDOKO TATSUJI; TAGO KEIICHIROU
PURPOSE:To prevent pressure loss and clogging in a rectifier device in a fluid conveyor system, by providing such an arrangement that fluid introduced through an inlet pipe is led into a body having an invertedly conical bottom through a rotatable guide section, and thereafter is led into an outlet pipe. CONSTITUTION:A guide member 8 is rotated by manipulating a lever 10 to adjust the angle theta of a through-hole 8c with respect to the Z-Z axis. Thereby, the through-hole 8a is directed toward a lid 6 and as well is positioned in a plane defined by the axes X-X and Y-Y, thereby the fluid will not swirl in a body 4. However, if the through-hole 8a is positioned so as to cross the above-mentioned plane, the fluid will siwrl in the body 4. Accordingly, biphase fluid of solid and gas led into the body 4 through an inlet pipe 1 is subjected to enlargement with the body 4, and is directed in accordance with the pattern of the fluid, thereby it is possible to aim at uniformalizing the distribution of concentration of solid in the cross-sectioned area of an outlet pipe 7. Thereby pressure loss and clogging are prevented to facilitate the maintenance thereof.
248 Apparatus for measuring fluid JP12699283 1983-07-14 JPS6020118A 1985-02-01 NUNOKAWA KAZUYOSHI
PURPOSE:To cool the titled apparatus with good efficiency and to make it waterproof as well by providing an aluminum plate being a base plate arranged between a lid and an outer shell of a main body so that said aluminum plate faces an intake path. CONSTITUTION:A rear surface side of a base plate 16, i.e. an aluminum base body 16A being the base plate 16 is arranged with facing the intake path 11 in an air flowmeter 1. The heat generated from electronic parts 17 is conducted to the body 16A having high thermal conductivity and taken out from the surface by a ventilation intake for the cooling. An air staying in a side of a space 19 is induced to the path 11 side through a ventilating hole 18 to prevent the generation of strain in a main body lid 10 due to the heat.
249 Shock absorber for air measuring member arranged in intake pipe of internal combustion engine JP8307284 1984-04-26 JPS59208420A 1984-11-26 EBAAHARUTO BIIRUMAN
250 Operable quantity distributor JP742184 1984-01-20 JPS59199468A 1984-11-12 PEETERU PUFUAIFUERU; REO MERUTE
A dosing mechanism in the form of a manually operable, single-acting piston pump, which dispenses a given quantity of a substance, e.g. in atomized form, during each actuating stroke has a counter. For this purpose, a counting ring mounted in rotary manner on a base part is provided, which is advanced by one step per actuating stroke by an indexing device with cooperating and correspondingly bevelled ribs, so that in each case a different character in the counting ring appears at a window in the actuating pusher casing. Two projections cooperating with one another in a given position of the counting ring form a locking device against further actuation of the atomizing pump, when a given number of strokes have been performed.
251 Flow rate detector JP22134482 1982-12-16 JPS59109815A 1984-06-25 SEKI KAZUO; KOJIMA KENICHI; WATANABE YUUJI; IIDA NOBUHIRO
PURPOSE:To incorporate a rotor bearing into a main body easily without deformation due to a high-temperature and high-pressure fluid to be measured while holding the merits of an elastic member as the bearing, by attaching a reinforcing plate to the rotor bearing consisting of the elastic member. CONSTITUTION:Since a reinforcing plate 7e having a high rigidity such as a stainless steel is attached to a bearing 7 supporting axially a rotor 4, the bearing is not deformed even if the fluid to be measured is under high-temperature and high-pressure. The reinforcing plate 7e is attached to the side of an exit passage 3 of a bearing leg part 7b or a side part 7d. Consequently, the bearing 7 is deformed into a projecting shape to the side of the exit passage 3 to prevent the difficulty of incorporation and the deformation at the press-fitting incorporation time is prevented when the bearing 7 is attached to a main body 1. Thus, the bearing is not changed by the high-temperature and high-pressure fluid to be measured and is incorporated into the main body easily.
252 Controller for air speed of clean bench JP18103582 1982-10-15 JPS5969919A 1984-04-20 ORII TAKESHI; KAWAKAMI TAKAO
PURPOSE: To detect air speed in a work space accurately while controlling it to the value previously set by providing an air speed sensor and a controller controlling the number of revolution of a blower. CONSTITUTION: Air sucked through a prefilter 13 from an air suction port 11 is blasted by the blower 5, dust in air is removed completely by a filter 1, and air is fed into the work space 9. The air speed sensor 3 such as a heat wave anemometer detecting the speed of clean air in the upper section of the work space 9 is provided, and the controller 7 compares a detected air-speed value detected by the air speed sensor 3 and a set air-speed value previously set and controls the number of revolution of the blower 5 in order to accelerate or decelerate the number of revolution when there is difference. Since the air speed sensor is set up to the upper section of the work space, air speed in the work space can be detected directly, and the state of an accurate air current can be detected. COPYRIGHT: (C)1984,JPO&Japio
253 Circuit for adjusting instrumental error JP10537082 1982-06-21 JPS58223021A 1983-12-24 KANAYAMA MASAHIRO
PURPOSE: To make a correcting interval broad and to improve accuracy, by computing the correcting amount in the correcting interval by linear interpolation in response to a flow rate, and performing the correction based on the result. CONSTITUTION: Flow rate pulses, which are oscillated at a frequency (f) that is proportional to a flow rate in a flowmeter 1, are sent to a flow rate computing circuit 2 on one hand and to a correcting amount computing circuit 4 through a terminal 6a of a pulse distributing circuit 6 on the other hand. In the flow rate computing circuit 2, the period of the flow rate pulse signal is measured by a pulse period measuring circuit 2a. Thereafter, the flow rate is computed by a period inverse number computing circuit 2b. The flow rate value is sent to a flow rate judging circuit 3, which judges to which section of the preset correcting sections the value belongs. Based in the output data from a correcting constant memory 9, the correcting value, which is computed by the correcting amount computing circuit 4, is inputted to an adder 5. Then, the flow pulses are synchronized by an output synchronizing circuit 8, and averaging is performed. COPYRIGHT: (C)1983,JPO&Japio
254 Method for correcting instrumental error of positive displacement flow meter JP1371182 1982-01-29 JPS58129330A 1983-08-02 SHIMOZONO TOSHIAKI
PURPOSE:To enable to perform an adjustment over a wide flow rate range for an instrumental error which is needed as flow meter by constituting the flow meter such that a brake is exerted on rotation of a rotor corresponding to instrumental error characteristics which a positive displacement flow meter has. CONSTITUTION:In case a flow meter has instrumental error characteristics not allowable within an instrumental error range necessary as a flow meter, an adjusting screw 25 is screwed in to compress a spring 24, and this causes a brake rod 23 to exert a friction force on a ring 20. As a result, a brake is exerted on a rotor 8 which is increased in a rotation resistance. Thus, in order to turn the rotor 8, a difference in pressure between a flow-in side and a flow- out side of a liquid to be measured increases, and the liquid to be measured leaking through a gap between a main body and the rotor 8 increases. This enables the instrumental error characteristics of the positive displacement flow meter to be brought to a instrumental error within a given range necessary as the flow meter over a wide flow rate range.
255 Method for measuring flow rate in emergency gas shut off device JP21319881 1981-12-28 JPS58113818A 1983-07-06 FUJIMOTO TATSUO; HONMA ISAO
PURPOSE:To obtain the accurate instantaneous flow rate, by starting the measurement of time and the number of pulse signals from the time when the first pulse signal is received, and performing computation when the next first pulse signal is received after the presst time period has passed. CONSTITUTION:In a control part which is combined with a flow rate pulse oscillating structure wherein one pulse is generated at every flow rate Q, the measurement of the pulses and the time is started when the first pulse (No.0) is received. Thereafter, the number of the received pulses are accumulated and memorized. At the time point when the preset time period of T seconds has passed, the accumulated number of the pulses is N. At the inslant when the following first pulse is received, the measurement of the pulse number and the time is finished. Then, the average flow rate within the measuring time period is given by (N+1)XQ/(T+alpha)(l/sec), where alpha seconds are the time period after the elapse of T seconds to the reception of the first pulse.
256 Air vent for bearing part of flow meter JP20729881 1981-12-21 JPS58106421A 1983-06-24 SHINKAWA MAKOTO
PURPOSE:To prevent a bearing from burning out by making a connection between the inside of at least one bearing part of a rotor and an outflow side through a communication pipe, and providing a filter between the bearing part and a rotor chamber and thus preventing air from staying. CONSTITUTION:The rotor shaft 14 of the rotor 7 is held rotatably by the bearing 15 in the bearing part 4, and the filter 16 of felt, etc., converting the rotor shaft 14 is arranged between the rotor chamber 3 and bearing part 4. To an exhaust hole 17 at the upper-most part of the bearing part 4, the communication pipe 18 which communicates with an outlet 20 for fluid is connected. A magnetic coupling 21 is connected to the rotor shaft 14 and the rotation of the rotor 7 is transmitted to a flow rate display part 22. Air staying in the bearing part 4 is discharged to the outlet 20 through the filter 16 ad communication pipe 18 and the bearing part 4 is filled with the fluid invariably, so the bearing 15 is prevented from burning out.
257 Measuring device for flow rate of gas JP16047481 1981-10-08 JPS5861411A 1983-04-12 MUTOU YUKIO; OOMORI NORIO; HIROMASA SHIYUNICHIROU; MURAKAMI KAZUHIRO
PURPOSE:To measure the suction rate of air of internal combustion engines provided with electronically controlled fuel injectors, etc. surely by providing a flow rectifying pipe in an air cleaner. CONSTITUTION:A flow rectifying tube 23 is communicated with the connection part of a suction conduit 13 in proximity to a flow rate detector 18 which measures the suction rate of the air sucked through a conduit 13 for suction into an engine 11 and an air cleaner 12 with the same axis as that of the conduit 13 and is provided so as to enter the air cleaner 12 part. The tube 23 is conducted into the conduit 13 through the cleaner 12 and regulates the flow of the air flowing in the flow rate measuring pipe 20 of the detector 18. By said regulation the output of the flow rate detector right under the air cleaner is stabilized effectively. Also, the variance among the individual output characteristics in the measurement of air flow is reduced, and the controlling of the air-to- fuel ratio at the internal combustion engine is stabilized effectively and is executed with high accuracy.
258 Device of detecting abnormal use of gas JP11075081 1981-07-17 JPS5814015A 1983-01-26 GOTANDA MOTOHIRO
PURPOSE:To make it possible to judge abnormality accurately without depending on the amount of the gas usage, by counting pulses corresponding to the flow rate of the gas in a specified time period at a specified time interval, and judging the abnormality based on the continuing number of times within a specified value. CONSTITUTION:A gate pulse generator 3 generates a pulse in a specified time length such as one minute at a specified time interval such as ten minutes. A counter 2 counts the pulses corresponding to the gas flow rate which are generated by a pulse generating device 1 during said pulse generating device 1 during said pulse period. The counted values are added in an operator 5 in a specified manner and stored in a memory device 6. When the counted value at this time is in the range of the stored value at the previous time, this is regarded as coincidence by a comparator 4, the reset output to the device 6 and a number of times counter 7 is not generated, and the content of the counter 7 is made to be +1. When the continuing number of times by the counter 7 exceeds the preset value of a preset counter 8, a warning device 10 is operated through a correlation circuit 9, and the accurate abnormality judgement and the warning generation are performed without depending on the amount of the gas usage.
259 Measuring method for flow rate of saturated liquid flowing into tank JP17493180 1980-12-10 JPS5797413A 1982-06-17 SUGA NORIO
PURPOSE:To measure a flow rate accurately by holding the internal pressure of a tank higher than the pressure of a saturated liquid flowing into the tank by charging noncondensible gas, except the vapor of the liquid, into the tank. CONSTITUTION:The internal pressure of a tank 1 is held equal to the pressure of a saturated liquid in a flow passage 2 which has an opening in the tank 1 by charging noncondensible gap into the tank. The liquid flows out by water head pressure without being flushed to stay in the tank in a saturated state, thereby measuring the flow rate of the liquid accurately.
260 Liquid meter of controlled volume with improved plunger means JP12844179 1979-10-03 JPS55122119A 1980-09-19 NIKORASU JISHIMOPOUROSU
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