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1. 发明专利

JPH0658452A DIGITAL CONTROL SOLENOID VALVE 失效
公开(公告)号：JPH0658452A
公开(公告)日：1994-03-01
申请号：JP19670293
申请日：1993-07-15
申请人： NUOVO PIGNONE SPA , ENIRICERCHE SPA
发明人： JIYORUJIYO BERUGAMIINI , BENANJIYO MINITSUNI
IPC分类号： F16K31/06 , H01F7/18
摘要： PURPOSE: To actuate a digital control solenoid valve by extremely small electric power. CONSTITUTION: Two end parts 14, 15 of a coil 13 of an electromagnet 12 are connected to a direct current electric power device through a circuit made of a condenser 24 and a transistor 21 connected in parallel to a current limiting resistor 19 and an electric power line. Additionally, a base 25 of the transistor 21 is controlled by a digital control device, and the both end parts 14, 15 of the coil 13 are connected to each other by a diode 28.

2. 发明专利

JPH07293703A SEALING DEVICE PARTICULARLY SUITABLE FOR PROCESS VALVE 失效
公开(公告)号：JPH07293703A
公开(公告)日：1995-11-10
申请号：JP27600293
申请日：1993-10-08
申请人： NUOVO PIGNONE SPA
发明人： JIYORUJIYO BERUGAMIINI
IPC分类号： F16K41/04 , F16J15/00 , F16J15/18 , F16J15/34 , F16J15/40 , F16K1/08 , F16K37/00 , F16K41/00 , F16K41/02
摘要： PURPOSE: To detect leak of process fluid at high sensitivity by means of a static member of a simple structure consuming little power. CONSTITUTION: A valve action member 3 for process fluid is included, a stem 4 of this valve action member 3 is slidably supported by two different seal gaskets 7, 8 disposed serially, an intermediate chamber 9 is supplied with auxiliary fluid is formed between the two seal gaskets 7, 8, and the intermediate chamber 9 is connected to a static separator 11 of an elastic plenum chamber or bag 13 filled with a biodegradable, non-contaminating, and non-aggressive lubricant fluid. The elastic plenum chamber or bag 13 having a very high elasticity inside the static separator 11 is connected to the process fluid in a range 15 adjacent to the seal gasket 7 closer to the valve action member 3, and the elastic plenum chamber or bag 13 cooperates with a movable head 16 which cooperates with a position sensor 18.

3. 发明专利

JPH06313722A FLUID FLOWMETER CONTROLLER 失效
公开(公告)号：JPH06313722A
公开(公告)日：1994-11-08
申请号：JP10920294
申请日：1994-04-26
申请人： NUOVO PIGNONE SPA
发明人： JIYORUJIYO BERUGAMIINI
IPC分类号： G01F1/66 , G01F15/00
摘要： PURPOSE: To repeatedly perform the precision flow measurement with high reliability, by using only two pairs of ultrasonic emitter sensors. CONSTITUTION: The pairs of emitter sensors 17, 18 are coaxially included in a straight measuring tube 1 of which the section is uniformly reduced from an inlet 7, in a fluid flow meter controller, and the inlet 7 is a symmetric ring radial extension body around a tube axial line 8. A grid 9 of ring structure, giving the resistance increasing from an external end 11 to an inner end 12, to the passage of the fluid to be tested, is connected with a measurement tube 1 through a ring inlet duct 13 curved in the shape of circular arc 14 of which the section is uniformly decreased. The inlet duct 13 comprises a baffle fairing 15 of a substantially conical extension body corresponding to the tube axial line 8, and a tube outlet 1" comprises an axial flow baffle body 23 for carrying the fluid into a ring duct 24 of which the section is decreased. An outlet port of the duct 25 can be closed by a valve member 25 movable the measurement tube axial line 8, by an operating means 34.

4. 发明专利

JPH04250317A VOLUME TYPE FLOWMETER 失效
公开(公告)号：JPH04250317A
公开(公告)日：1992-09-07
申请号：JP21313491
申请日：1991-07-31
申请人： NUOVO PIGNONE SPA
发明人： JIYORUJIYO BERUGAMIINI , ERUNESUTO PARISU
IPC分类号： F01C1/344 , F01C21/08 , G01F3/06 , G01F3/08 , G01F3/10
摘要： PURPOSE: To make it possible to improve the efficiency and reliability of a flowmeter capable of obtaining a large drive torque to make geometrical and physical parameters equal to pressure drop. CONSTITUTION: A rotor 4 is rotatably eccentrically mounted via a rotary shaft 3 in the cylindrical chamber 2 of an outer casing 1, and minimum and maximum gaps 11, 12 are formed. Two pars AB and CD of predetermined curvature are formed on the inner surface 13 of the chamber 2, and the center is at te axis 14 of the rotor 4. Rolling rollers 15, 16, 17, 18, 19 are energized by a magnet 20 magnetized and embedded in the direction of the axis 21 of the rollers to form sealing relation to the inner surface 13, and contained in the circumferential grooves 22, 23, 23, 25, 26 formed. The grooves are inclined 28 forward to the rotating direction 27 of the rotor.

5. 发明专利

JPH07210253A SYSTEM FOR CONTROL OF ACTUATOR OF FLOW-RATE CONTROL VALVE 失效
公开(公告)号：JPH07210253A
公开(公告)日：1995-08-11
申请号：JP30486592
申请日：1992-10-16
申请人： NUOVO PIGNONE SPA
发明人： JIYORUJIYO BERUGAMIINI
IPC分类号： G01F1/00 , G05B19/02 , G05D7/06 , G05D16/20
摘要： PURPOSE: To directly control a flow rate control valve without hunting or delay by obtaining a positioning command for the actuator of the flow rate control valve on a characteristic curve which does not vary though a valve operating condition varies. CONSTITUTION: A sensor 3 is connected with the flow rate control valve 2 to measure the pressure drop ▵P crossing the flow rate control valve 2. The output of the sensor 3 is connected with the input of a first function block 5 through connection 4 and this first function block 5 is also given a set flow rate value Qs . The function block 5 processes the input value according to (▵Po .Qs) (▵P). Then ▵Po expresses fixed pressure drop crossing the valve. By this processing, the output 6 of the function block 5 sends a value CVS corresponding to a flow rate Qs for pressure drop ▵P to a second function block 7. Then the characteristic curve of the valve is stored here, a value Ss corresponding to the value CVS is generated at the output 8 of a function block 7, and the actuator of the valve 2 is positioned by this value Ss .

6. 发明专利

JPH05162800A VOLATILE VAPOR RECOVERY APPARATUS FOR FUEL FILLING FACILITY 失效
公开(公告)号：JPH05162800A
公开(公告)日：1993-06-29
申请号：JP15016692
申请日：1992-05-19
申请人： NUOVO PIGNONE SPA
发明人： JIYORUJIYO BERUGAMIINI , ERUNESUTO PARISU
IPC分类号： B67D7/54 , B65B3/18 , B67D7/00 , B67D7/04 , B67D7/76
摘要： PURPOSE: To recover volatile gasoline vapor at the time of feeding at service stations. CONSTITUTION: The close end of a porous pipe 16 which is extended along the bottom of an underground tank 2 is connected to the end part 15' of a release pipe 15 from an adjustable speed positive transportation type pump 10 for air/gasoline vapor from a loading arm 6. And, micro foams 17 of recovered air/gasoline mixed vapor are produced in liquid gasoline 3 in the underground tank. By-pass pipe 25 from the underground tank 2 is set as large path and therein a baffle is installed.

7. 发明专利

JPH02242798A SAFETY RECOVERY SYSTEM OF VOLATILE MATERIAL 失效
公开(公告)号：JPH02242798A
公开(公告)日：1990-09-27
申请号：JP4141790
申请日：1989-12-29
申请人： NUOVO PIGNONE SPA
发明人： JIYORUJIYO BERUGAMIINI , ERUNESUTO PARISU
IPC分类号： B67D7/76 , B67D7/04 , B67D5/58
摘要： PURPOSE: To efficiently recover the vaporized substance in safety by continuously measuring the effective concentration of a mixture, and comparing the same with at laest one threshold value indicating that a mixture is explosive for momently adjusting a rotating speed of a positive displacement pump actuating on a return pipe. CONSTITUTION: A pump actuating on a return pipe 31 is a positive displacement pump 21, and a motor 36 of this pump is controlled by a means for momently adjusting its rotating speed as the function of the delivery capacity of the supplied fuel. On this occasion, the effective concentration of the mixture is continuously measured in consideration of the quantity of excess air depending on the pressure difference, the temperature of an underground tank, and the temperature of vapor-air mixture to be compared with at least one threshold value indicating that the air is very rare and the mixture is explosive by a logical unit 14. Whereby the vaporized substance can be efficiently recovered in safety without using a system for recovering the vapor in safety, particularly a bellows type sealing element, and without the possibility of explosion and the undesired pressurization of the underground tank.

8. 发明专利

JPH07253818A CONTOLLER FOR AIR-PRESSURE TYPE VALVE ACTUATOR 失效
公开(公告)号：JPH07253818A
公开(公告)日：1995-10-03
申请号：JP33510994
申请日：1994-12-21
申请人： NUOVO PIGNONE SPA
发明人： JIYORUJIYO BERUGAMIINI , BENANTSUIO MININNI
IPC分类号： F16K37/00 , G05B23/02 , G05D16/20
摘要： PURPOSE: To improve the reliability, preciseness, and economicity of a controller for pneumatic valve actuator by connecting the output of an operating block expressed by a prescribed formula to a block which calculates the pressure of a valve member and providing a means which detects the movement stop of the valve member and another means which detects serious operation abnormality and the degree of wear of a seal member. CONSTITUTION: In a transit memory, stored values are added to and change the values stored in operating blocks 20, 21, and 22. The outputs 17', 18', and 19' of the blocks 20, 21, and 22 are connected to a calculating block 23 and the block 23 decides the pressure value at a specific position of a valve member 2 from formula I. In the formula, Pm, Pe, and Pa respectively represent the pressure applied from a reaction spring, the pressure caused by a reverse thrust, and a frictional pressure. A logic control unit 32 switches the blocks 20, 21, and 22 whenever the valve member 2 is stopped by means of a sensor 36 which detects the positional change of the member 2. The output 30 of a differentiator 27 which detects serious operation abnormality is connected to a comparator 39 and the wear of a valve seal member is detected by means of an integrator 42.

9. 发明专利

JPH0719202A ELECTROPNEUMATIC CONVERTER SIMULTANEOUSLY FUNCTIONING AS CONTROL OF SOLENOID VALVE 失效
公开(公告)号：JPH0719202A
公开(公告)日：1995-01-20
申请号：JP16290594
申请日：1994-06-22
申请人： NUOVO PIGNONE SPA
发明人： JIYORUJIYO BERUGAMIINI , BENANJIYO MININNI
IPC分类号： F15B5/00 , F15B13/043 , F16K31/06 , F16K31/40 , G05D7/06 , G05D16/20
摘要： PURPOSE: To always provide a repeatable pressure valve even in the short opening time of a solenoid valve capable of outputting the output pressure linearly changing with regard to the operating time of the solenoid valve without being influenced by either of the feed pressure or the output pressure in the operation of the solenoid valve, and further whose necessary operating energy is minimum. CONSTITUTION: Solenoid valves 1, 4 are connected respectively to the feed pressure and to atmosphere, each via a pressure regulator 6 controlled by a differential pressure measurement device 23 or 28 connected across the solenoid valves 1, 4, so as to maintain a constant pressure difference across the respective solenoid valves 1, 2.

10. 发明专利

JPS5397398A ELECTROMECHANICAL DIGITAL DISPLAY 失效
公开(公告)号：JPS5397398A
公开(公告)日：1978-08-25
申请号：JP898078
申请日：1978-01-31
申请人： NUOVO PIGNONE SPA
发明人： JIYORUJIYO BERUGAMIINI
IPC分类号： G09F9/30 , G09F9/37 , G09F11/00

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