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1. 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.

2. 发明专利

JPS6385315A TURBINE TYPE FLOWMETER 失效
公开(公告)号：JPS6385315A
公开(公告)日：1988-04-15
申请号：JP23152686
申请日：1986-09-30
申请人： OSAKA GAS CO LTD , TOKICO LTD
发明人： KATO TAKU , MORITA HIROSHI , YAMAGUCHI KENJI
IPC分类号： G01F1/10
摘要： PURPOSE:To suppress the deformation of a casing due to the thermal expansion thereof to a minute degree, by providing a reinforcing member having coefficient of thermal expansion lower than that of the casing and high rigidity in the casing by integral molding. CONSTITUTION:A reinforcing member 7 is embedded in a cylindrical part 6a at a plurality of places in the axial direction thereof. This reinforcing member 7 is formed of a material having coefficient of thermal expansion lower than that of a synthetic resin and high rigidity and provided to a casing 6 by insert molding. Because of this, the reinforcing member 7 is integrated with the cylindrical part 6a of the casing 6. Since a plurality of the reinforcing members 7 are embedded in the cylindrical part 6a of the casing 6 by insert molding, even when the cylindrical part 6a conducts the heat of a flowmeter main body 1, the deformation of the cylindrical part 6a due to thermal expansion is suppressed to an extremely minute degree by the reinforcing members 7.

3. 发明专利

JPS6385317A TURBINE TYPE FLOWMETER 失效
公开(公告)号：JPS6385317A
公开(公告)日：1988-04-15
申请号：JP23152886
申请日：1986-09-30
申请人： OSAKA GAS CO LTD , TOKICO LTD
发明人： KATO TAKU , MORITA HIROSHI , YAMAGUCHI KENJI , TSUGE KAZUO
IPC分类号： G01F1/10
摘要： PURPOSE:To prevent the tilting of a rotary shaft accompanying the rotation of a turbine rotor, by integrally forming reinforcing ribs each having an angle of torsion equal to that of each blade between the inner peripheral part of a blade wheel main body and a shaft part. CONSTITUTION:When a fluid flows through the flow passage 6a in a flowmeter main body 6 from below to above, said fluid passes while rotating the blades 13 of a turbine rotor 11. The turbine rotor 11 rotates correspondingly to a flow rate and reacts with a minute flow rate with high sensitivity. When the flow rate increases, the upward thrust force acting on the turbine rotor increases. Therefore, the turbine rotor 11 upwardly moves gradually and the downstream side end part of a rotary shaft 16 contacts the bearing part of a pivot bearing 10 and the upstream side end part of the rotary shaft 16 is separated from the pivot bearing 10 and the turbine rotor 11 rotates at a high speed. At this time, since reinforcing ribs 15 are formed between the annular part 12a of a rotor hub 12 and a shaft part 14, the rigidity of the shaft part 14 is high and the tilting of the rotary shaft 16 accompanying the rotation of the turbine rotor 11 can be prevented.

4. 发明专利

JPS6385316A TURBINE TYPE FLOWMETER 失效
公开(公告)号：JPS6385316A
公开(公告)日：1988-04-15
申请号：JP23152786
申请日：1986-09-30
申请人： OSAKA GAS CO LTD , TOKICO LTD
发明人： KATO TAKU , MORITA HIROSHI , YAMAGUCHI KENJI , TSUGE KAZUO , IMAMURA KYOJI , KAWAI YOSHIO , HASEGAWA HIROAKI , AMEMORI HIROYUKI
IPC分类号： G01F1/10
摘要： PURPOSE:To suppress the abrasion of a rotary shaft and a bearing part, by supplying the lubricant of an oil sump chamber to the bearing part of a bearing little by little with the rotation of the rotary shaft. CONSTITUTION:The lubricant infiltrated in the packing member 14b in a pipe 14a is almost uniformly distributed throughout the packing member 14b by a capillary phenomenon. The packing material 14b is contacted with the piercing holes 16a, 17a of balls 16, 17. Therefore, a turbine rotor rotates at the time of the measurement of a flow rate and centrifugal force acts on the piercing holes 16a, 17a of the balls 16, 17 of a rotary shaft 14. Because of this, the lubricant in the piercing holes 16a, 17a exudes to the outer peripheries of the balls 16, 17 little by little correspondingly to the rotational speed of the rotary shaft 14 to be supplied to the bearing parts 6a, 11a of pivot bearings, 6, 11. By this method, the abrasion of the rotary shaft 14 and the bearing parts 6a, 11a can be suppressed.

5. 发明专利

JPS61265529A TURBINE TYPE FLOWMETER 失效
公开(公告)号：JPS61265529A
公开(公告)日：1986-11-25
申请号：JP10728085
申请日：1985-05-20
申请人： OSAKA GAS CO LTD , TOKICO LTD
发明人： TSUGE KAZUO , MORITA HIROSHI , FUJISAWA SHOZO , KATO TAKU , TAKEI YOSHIKI
IPC分类号： G01F1/10
摘要： PURPOSE:To make it possible to measure a flow rate with high accuracy by always certainly pivotally supporting a blade wheel in thrust and radial directions to stabilize the rotation thereof, by constituting a flowmeter from the blade wheel having a baring part provided to the center thereof and a pair of support shafts provided so as to be protruded toward the bearing part from the upstream or downstream side of said wheel. CONSTITUTION:A fluid to be measured flows in a pipe 17 from a flange 15 and flows out from a flange 16 to revolve a blade wheel 12. The magnet 21 embedded in the blade wheel 12 and the detector 22 provided to an upstream side cone member 10 cooperate to detect the rotation of the blade wheel 12 and the detected value is processed by an operation apparatus to measure a flow rate. Because thrust force due to the fluid to be measured is small at the time of a low flow rate, the blade wheel 12 rotated under its own wt. in such a state that the pivot bearing 20 provided to the bearing hole 12c thereof is contacted with the leading end of a support shaft 13. As the flow rate is increased, the upward thrust force acting on the blade wheel 12 increases to gradually move said blade wheel 12 to an upward X1-direction and the leading end of the support shaft 13 is allowed to be spaced apart from the pivot bearing 20 so as to provide a slight dimension therebetween and a support shaft 14 pivotally supports the blade wheel 12 to a thrust direction.

6. 发明专利

JPH084660A PUMP UNIT 失效
公开(公告)号：JPH084660A
公开(公告)日：1996-01-09
申请号：JP16052994
申请日：1994-06-20
申请人： TOKICO LTD
发明人： TOKUDA KENJI , KATO TAKU , KUROMARU TATSURO
IPC分类号： F04C2/344 , B01D45/12 , F04B53/06
摘要： PURPOSE:To restrain the air from being discharged to the outside by mounting an air relief valve which opens the by-path flow passage of a throttle part for sucking much air to the inside, according to the pressure drop of gas enriching liquid. CONSTITUTION:This pump unit, which is equipped with a pump and a gas-liquid separator 31 disposed continuously in a casing 10 which has an inflow port and an outflow port in it, leads gas enriching liquid centrifugally-separated by the gas-liquid separator 31 to a gas separator 60 through a flow passage 36 and leads separated liquid to the outflow port through a filter chamber and an outlet check valve, is provided with a by-path flow passage 37 which bypasses its throttle 36a and is mounted on the flow passage 36 which leads gas enriching liquid, and an air relief valve 38 which has an opening area larger than the throttle 36a and is mounted on the by-path flow passage 37. A valve element 38b in the air relief valve 38 is generally forced to a valve opening direction by a spring 38c, and the valve element 38b is separated from a valve seat 38a. A large amount of air is relieved promptly to the gas-liquid separator 60 to prevent air from leaking out of the outflow port.

7. 发明专利

JPH02306119A TURBINE TYPE FLOWMETER 失效
公开(公告)号：JPH02306119A
公开(公告)日：1990-12-19
申请号：JP12600789
申请日：1989-05-19
申请人： TOKICO LTD
发明人： KATO TAKU
IPC分类号： G01F1/10
摘要： PURPOSE:To detect that an impeller rotates by the inertia force when the flow rate of a fluid flowing in a passage is zero by producing a pressure difference between a first and a second pressure leading chambers by the pressure change within said passage subsequent to the completion of the use of a gas. CONSTITUTION:When a gas is used at the downstream side, the pressure in a flow passage 2a is lowered from P1 to P2. At this time, the pressure in a first pressure leading chamber 13b to which is directly supplied the pressure in the flow passage 2a through a pressure leading hole 14 and a pressure leading pipe 15a is also lowered from P1 to P2. However, the pressure in a second pressure leading chamber 13c is not immediately lowered since a throttle 16 is provided in a pressure leading pipe 15b, but gradually lowered from P1 to P2 with a time delay t1. As a result of this, when the gas is being used, the pressure in the pressure leading chamber 13b of a differential pressure gauge 13 is lowered faster than in the pressure leading chamber 13c, resulting in the pressure difference between the chambers 13b and 13c. Accordingly, a diaphragm 13d and a detecting piece 13e are shifted in a direction of an arrow X. Thus, it can be detected when the flow rate of the gas in the flow passage 2a is zero that an impeller 11 rotates by the inertia force.

8. 发明专利

JP2004293777A Emergency detachable coupler 审中-公开
公开(公告)号：JP2004293777A
公开(公告)日：2004-10-21
申请号：JP2003314519
申请日：2003-09-05
申请人： Tokico Ltd , トキコ株式会社
发明人： KATO TAKU
IPC分类号： F17C5/06 , F17C13/00
CPC分类号： Y02E60/321
摘要： PROBLEM TO BE SOLVED: To provide an emergency detachable coupler to be used for the ultrahigh-pressure fluid by separating a plug from a socket with only external force independently of the pressure of the fluid passing in a passage. SOLUTION: A connector pin 38 to be cut to relatively move a plug 12 and a socket 20 when a certain or more external force is applied in directions (directions with arrows A and B) for separating the plug 12 and the socket 20 and a ball 39 to be separated when the plug 12 and the socket 20 are moved in the separating directions by a certain distance are provided between the plug 12 and the socket 20, and the plug 12 and the socket 20 are provided with shut-off valves 19 and 34 for shutting off the plug 12 and the socket 20 when relatively moving. Consequently, the plug 12 and the socket 20 can be separated with the work of the external force independently of the pressure of the filled fluid by applying a certain or more external force in the separating direction to the plug 12 and the socket 20. The shut-off valves 19 and 34 can prevent leak of hydrogen gas from the plug 12 and the socket 20. COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JPH1119416A STRAINER 失效
公开(公告)号：JPH1119416A
公开(公告)日：1999-01-26
申请号：JP17710997
申请日：1997-07-02
申请人： TOKICO LTD
发明人： KATO TAKU
IPC分类号： B01D29/11 , B01D35/02
摘要： PROBLEM TO BE SOLVED: To provide a strainer hardly causing clogging and reduced pressure loss. SOLUTION: This strainer 11 is constituted of an outer periphery side screen 12 cylindrically formed and a recessed screen 13 installed at a bottomed end part 11a and formed concentrically with the screen 12. And between the outer periphery side screen 12 and the recessed screen 13, an annular screen 14 is interposed. Furthermore, in the recessed screen 13, an end part 13b extending into the outer periphery side screen 12 is provided with a circular screen 15. By the recessed screen 13, the reinforcing area of the strainer 11 can be increased and also foreign matter in oil liquid that is apt to be deposited in the bottomed end part 11a can be caught. Therefore, since the outer periphery side screen 12 of the strainer 11 is hardly clogged, pressure loss of the oil liquid across the strainer 11 can be reduced for a long time. In this way, the number of cleanings of the strainer 1 can be reduced.

10. 发明专利

JPS5122397A 失效
公开(公告)号：JPS5122397A
公开(公告)日：1976-02-23
申请号：JP9481674
申请日：1974-08-19
申请人： TOKICO LTD
发明人： IKEDA JUNICHI , KATO TAKU
IPC分类号： G02F1/13 , G09F9/00 , G09F9/30

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