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1. 发明专利

JPH01288616A OIL STORING BODY 失效
公开(公告)号：JPH01288616A
公开(公告)日：1989-11-20
申请号：JP11484488
申请日：1988-05-13
申请人： TOKICO LTD , TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK
发明人： IMAMURA KYOJI , KOJIMA TERUHISA , KOMAKI MASAYUKI , MORITA HIROSHI , MURAKAMI TAKATOSHI , SATO YASUO , KOKETSU YASUO
IPC分类号： F16C33/10 , F16C33/00 , F16N1/00
摘要： PURPOSE:To increase quantity of stored oil in an oil storing body in order to enhance its manufacturing efficiency and to reduce its manufacturing cost by winding up in a roll shape a bendable thin film body provided with a plurality of linear protrusions parallel to the surface thereof, and forming a micro pipe line between the thin film body and the linear protrusive portions to store lubricating oil therein. CONSTITUTION:Metal linear protrusive portions 30 of copper or the like are axially formed at fixed intervals on one side of a bendable thin resin film 29, and on the periphery of the resin film 29 wound up in a roll shape is applied another resin film 31 to keep its rolled state. A micro pipe line 26 is thereby formed between the resin film 29 and the linear protrusive portions 30 to store lubricating oil therein. Thus quantity of stored oil is increased and the oil storing body can be manufactured simply as well as effectively at a low cost, and also volatile quantity of lubricating oil can be restrained.

2. 发明专利

JPH01285823A MANUFACTURE OF TURBINE ROTOR 失效
公开(公告)号：JPH01285823A
公开(公告)日：1989-11-16
申请号：JP11484788
申请日：1988-05-13
申请人： TOKICO LTD , TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK
发明人： TAKEI YOSHIKI , KOJIMA TERUHISA , KOMAKI MASAYUKI , MORITA HIROSHI , MURAKAMI TAKATOSHI , SATO YASUO , KOKETSU YASUO
IPC分类号： G01F1/10 , B29C45/44
摘要： PURPOSE:To enable the monolithic molding of two or more blades in such a manner that they are superposed in the axial direction, by a method wherein after molten resin is injected into a mold and molded, the mold is rotated and the main body of a rotor is released from the mold. CONSTITUTION:In a state wherein a movable die is in contact with a fixed die 6, molten resin is injected from a runner 16. This molten resin is filled up in a cavity from a gate 15 and put under a pressure. After a mold 5 is cooled down and the resin in the cavity is set, the movable die is moved downward to be separated from the die 6. When a gap large enough to take out the main body 2 of a rotor is formed between the die 6and the movable die, subsequently, pressure pins 12 and 13 are driven. Since a rotary mold 8 is supported by rolling bearing 9, the main body 2 is rotated while it is pressed by the pins 12 and 13, so as to be taken out of mold 8. In this way, two or more blades can be molded monolithically so that they are superposed in the axial direction.

3. 发明专利

JPH01282426A CORRECTION CIRCUIT FOR TURBINE TYPE FLOWMETER 失效
公开(公告)号：JPH01282426A
公开(公告)日：1989-11-14
申请号：JP11276088
申请日：1988-05-10
申请人： TOKICO LTD , TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK
发明人： MIYAMOTO KEIICHI , TOYABE KIMIROU , TSUGE KAZUO , IKEDA HIDEAKI , KOJIMA TERUHISA , KOMAKI MASAYUKI , MORITA HIROSHI , MURAKAMI TAKATOSHI , SATO YASUO , KOKETSU YASUO
IPC分类号： G01F1/10 , G01F1/115 , G01F1/12 , G01F15/02 , G01F25/00
摘要： PURPOSE:To achieve a higher accuracy of a measuring flow rate, by providing an totalizing means which totalizes pulses excluding time from first to second time point to add a correction value from a correction value generating means to a cumulative value thereof. CONSTITUTION:A pulse incident into a terminal 40 is amplified 41 and totalized 42. The pulse amplified 41 is supplied to an overmetering detector 43, an overmetering end detector 44 and an overmetering moment totalizing circuit 45. In the detector 43, when a difference between the preceding revolutions Ni-1 and the present revolutions Ni exceeds a fixed value DELTAN, an overmetering start signal OMS is generated to be supplied to circuits 42 and 45. In the circuit 44, a difference between the revolutions Ni-1 and Ni falls below the fixed value DELTAN, an overmetering end signal OME is outputted. Moreover, the circuit 45 determines a product of the revolutions Ni of the signal OME at the incident and overmetering time. Then, after the incidence of the signal OMS, an overmetering cumulative value from the circuit 45 is added with the circuit 42 and the results are displayed 46 as flow rate.

4. 发明专利

JPH0262914A ROTARY BODY FOR TURBINE TYPE FLOWMETER 失效
公开(公告)号：JPH0262914A
公开(公告)日：1990-03-02
申请号：JP11484688
申请日：1988-05-13
申请人： TOKICO LTD , TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK
发明人： TAKEI YOSHIKI , NAGASAWA JUNICHI , KOJIMA TERUHISA , KOMAKI MASAYUKI , MORITA HIROSHI , MURAKAMI TAKATOSHI , SATO YASUO , KOKETSU YASUO
IPC分类号： G01F1/10
摘要： PURPOSE:To measure a flow rate stably by forming a hole in the main body of a rotary body, and fitting balls which abut on bearings fixed on the upstream and downstream sides of the main body in the hole. CONSTITUTION:When gas is fed in a flow passage 1 as shown by an arrow, the gas flows to the downstream side after passing blades 3c of the rotary body 2. The body 2 rotates at a rotating speed proportional to the flow rate in the flow passage 1. In the body 2, a shaft 4 is formed by insertion molding, so the strength of the shaft part is high and the balls 5a and 5b abut on recessed parts to obtain high concentricity with the shaft 4. Further, a metallic shaft 4 is formed in the body 2 by insertion molding, so upstream and downstream cones 8 and 9 which have the shaft part of the body 2 and pivot shafts 6 and 7 are nearly equal in coefficient of linear expansion. Therefore, the body 2 rotates stably without being affected by temperature variation. The rotating speed of the body 2 is detected by a pickup 15 as a magnet 16 passes and supplied to a flow rate indication part through an amplifier, and the speed is converted into the flow rate.

5. 发明专利

JPH01285822A TURBINE-TYPE FLOWMETER 失效
公开(公告)号：JPH01285822A
公开(公告)日：1989-11-16
申请号：JP11484588
申请日：1988-05-13
申请人： TOKICO LTD , TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK
发明人： AMEMORI ATSUHIRO , SAWAMOTO KOJI , KOJIMA TERUHISA , KOMAKI MASAYUKI , MORITA HIROSHI , MURAKAMI TAKATOSHI , SATO YASUO , KOKETSU YASUO
IPC分类号： G01F1/10
摘要： PURPOSE:To prevent an extraneous substance from sticking to a rotating shaft and a bearing of a turbine wheel, by a construction wherein, even when the extraneous substance in a fluid to be measured intrudes between a cone member on the upstream side and the turbine wheel, the extraneous substance is made to stay and be deposited by a projection element projecting into an annular recessed part of a rotor hub. CONSTITUTION:A turbine wheel 3 rotating with a rotating shaft 6 in accordance with the flow rate of a fluid to be measured, bearings 9 and 10 bearing the rotating shaft 6 pivotally, cone members 11 and 16 provided on the upstream and downstream sides of the turbine wheel 3, and a hub 4 of the wheel 3 opposite to the member 11, are provided. In addition, an annular recessed part 4b formed around the rotating shaft 6, and a projection element 11b which projects from the member 11 into the recessed part 4b to be positioned in proximity to the part 4b with a minute gap from the inner wall of this part so that the fluid flowing into th recessed part 4b be made to stay around the rotating shaft 6, are provided. An extraneous substance is made to stay by said projection element 11b and to be deposited on this element 11b, and thereby the extraneous substance can be prevented from sticking onto the rotating shaft 6 and the bearing 9 and 10.

6. 发明专利

JPS6469814A ROTARY SHAFT OF ROTARY BODY 失效
公开(公告)号：JPS6469814A
公开(公告)日：1989-03-15
申请号：JP22873987
申请日：1987-09-11
申请人： TOKICO LTD , TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK
发明人： KOBAYASHI YUICHI , NAGASAWA JUNICHI , KOJIMA TERUHISA , KOMAKI MASAYUKI , MORITA HIROSHI , MURAKAMI TAKATOSHI , SATO YASUO , KOKETSU YASUO
IPC分类号： F16C3/02
摘要： PURPOSE:To prevent eccentric wear of a rotary shaft to improve its durability so as to aim at stability in a high speed rotation by forming spherical bearing portions at the ends of the rotary shaft by an arc discharge etc., and allowing these portions to make sliding contact with pivot bearings. CONSTITUTION:Both ends of a rod member having a predetermined outer diameter and length are cut in nearly half-sphericity and its ends 9a, 9b are heated so as to be in a melting condition for forming spherical bearing portions 9c, 9d having throttled portions 9a', 9b' and a diameter approximately equal to the shaft diameter of a rotary shaft 9 by surface tension. Accordingly, the top end portion and the side portion are spherical so that eccentric wear is prevented and wear resistance can be improved without any special heat treatment and a manufacturing cost can be reduced.

7. 发明专利

JPH02110321A DEVICE FOR CORRECTING FLOW RATE OF TURBINE-TYPE FLOWMETER 失效
公开(公告)号：JPH02110321A
公开(公告)日：1990-04-23
申请号：JP13744488
申请日：1988-06-06
申请人： TOKICO LTD , TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK
发明人： TOYABE MIKIROU , MIYAMOTO KEIICHI , KOJIMA TERUHISA , KOMAKI MASAYUKI , MORITA HIROSHI , MURAKAMI TAKATOSHI , SATO YASUO , KOKETSU YASUO
IPC分类号： G01F1/12 , G01F1/00
摘要： PURPOSE:To lessen the number of divisions of the range of a flow rate, to reduce a storage capacity for correction data and to make correction highly precise by determining the flow rate corrected in a low-flow-rate area every time when a pulse comes in, and the flow rate obtained by correcting an instrumental error by adding a prescribed flow rate in medium- and high-flow-rate areas at that time and by adding further a correction amount in the medium-flow-rate area. CONSTITUTION:A flow rate determining and controlling element 22 determines low-, medium- and high-flow rate areas from an interval of pulses and the number thereof and changes over operation modes of a memory control element 23, correction computing elements 24 and 25 and a unit flow rate generating element 26 in accordance with the result of determination. In the correction computing elements 24 and 25, a corrected flow rate outputted by a low-flow-rate area flow rate correcting means is added in the low-flow-rate area every time when the pulse comes in, a prescribed flow rate is added in the medium-flow-rate area and the high-flow-rate area every time when said pulse comes in, and a correction amount outputted by a medium-flow-rate area correction amount generating means is the medium-flow- rate area is at added every unit time so that a flow rate obtained by correcting an instrumental error thereby can be attained. According to this constitution, a storage capacity for correction data can be reduced and instrumental error can be corrected highly precisely in a short time.

8. 发明专利

JPH0296618A TURBINE TYPE FLOWMETER 失效
公开(公告)号：JPH0296618A
公开(公告)日：1990-04-09
申请号：JP24956788
申请日：1988-10-03
申请人： TOKICO LTD , TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK
发明人： KATO TAKU , TSUGE KAZUO , KOJIMA TERUHISA , KOMAKI MASAYUKI , MORITA HIROSHI , MURAKAMI TAKATOSHI , SATO YASUO , KOKETSU YASUO
IPC分类号： G01F1/10
摘要： PURPOSE:To hold the rotation of a turbine rotor stably even in a minute flow rate region with high accuracy by preventing the adhesion of foreign matter to a pivot bearing by providing a recessed part to the end surface of the cone member opposed to the end surface of the hub of the turbine rotor. CONSTITUTION:A turbine rotor 3 is formed so that a plurality of blades 5 are provided to the outer periphery of a rotor hub 4 and a rotary shaft 6 is inserted in and fixed to the central hole of the rotor hub 4. In order to achieve the wt. reduction of the turbine rotor 3, an annular recessed part 4b is formed to the end surface of the rotor hub 4 on the upstream side thereof excepting the outer periphery of said hub 4 and the holding part 4a for holding the rotary shaft 6. The rotary shaft 6 has pivots 6a, 6b having balls 6a1, 6b1 fixed thereto in the recessed parts of both ends thereof to respectively constitute pivot bearings 8a, 8b. At the mount positions on the bearings 8a, 8b, the rotor hub 4 is opposed to the end surfaces of the cones 11, 14 on the upstream and downstream sides thereof so as to provide slight gaps 20a, 20b. A recessed part 17 is formed to the end surface of the cone 14 on the downstream side so as to prevent the adhesion of foreign matter to the bearings 8a, 8b.

9. 发明专利

JPS6415615A FLOWMETER 失效
公开(公告)号：JPS6415615A
公开(公告)日：1989-01-19
申请号：JP17222887
申请日：1987-07-10
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , TOKICO LTD
发明人： KOJIMA TERUHISA , KOMAKI MASAYUKI , MORITA HIROSHI , MURAKAMI TAKATOSHI , SATO YASUO , KOKETSU YASUO , TSUGE KAZUO , MIYAMOTO KEIICHI , AMEMORI HIROYUKI
IPC分类号： G01F1/10 , G01F7/00
摘要： PURPOSE:To prevent the sharp lowering of a pressure and thereby to prevent the occurrence of shortage of gas supply, by detaching a valve body from a valve seat by a pressure difference between an upstream-side pressure and a downstream-side pressure and thereby supplying a fluid through a main channel. CONSTITUTION:A gas is jetted to vanes of a turbine rotor 22 when the gas used. The rotation of the turbine rotor 22 is detected by a pickup 25, and a control circuit 32 integrates pulses from the pickup 25 to calculate the flow rate of the gas. When a pulse interval of the pulses from the pickup 25 reaches a limit value, the control circuit 32 outputs a valve opening signal to an electromagnetic solenoid 17c. A switching valve 17 is operated thereby to open a valve, and the gas enters a measuring chamber 13c through an opening of a valve seat 15, passes through a channel 21b of a flow rate measuring element 21 and is supplied from an outflow channel 13d to a gas appliance on the downstream side.

10. 发明专利

JPH01282428A FLOW RATE MEASURING APPARATUS 失效
公开(公告)号：JPH01282428A
公开(公告)日：1989-11-14
申请号：JP11275988
申请日：1988-05-10
申请人： TOKICO LTD , TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK
发明人： TOYABE KIMIROU , KOJIMA TERUHISA , KOMAKI MASAYUKI , MORITA HIROSHI , MURAKAMI TAKATOSHI , SATO YASUO , KOKETSU YASUO
IPC分类号： G01P3/481 , G01F1/00 , G01F1/08 , G01F1/115 , G01F1/12 , G01F15/00 , G01F15/06
摘要： PURPOSE:To enable the measurement of a flow rate accurately, by performing a corrective computation of a arithmetic processing of a rotor pulse yet to be processed when the unprocessed rotor pulse exists. CONSTITUTION:A turbine rotor 3a is rotated according to a flow rate of a gas to be supplied through a supply line 2 and the rotation of the rotor 3a is detected with a pickup 3b. Then, a signal detected with the pickup 3b is converted into an electrical signal with a detection circuit 4 to be shaped in waveform with a pulsation circuit 5 and supplied to a correction computing circuit 6 and a frequency dividing circuit 7. The circuit 6 is provided with a computation circuit 6a to which a rotor pulse 5' is supplied from the circuit 5 to compute a flow rate and a correction circuit 6b to which a frequency dividing pulse 7' from the circuit 7 is supplied to correct computation/ measurement errors by an a pulse 7' yet to be processed. Thus, the circuit 6 is supplied with the pulse 5' and the pulse 7' to calculate a cumulative flow rate by an arithmetic processing and the results are shown on a display device 8 thereby enabling accurate measurement of the flow rate.

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