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1. 发明申请

WO2019186483A1 PRESSURE REGULATOR 审中-公开
公开(公告)号：WO2019186483A1
公开(公告)日：2019-10-03
申请号：PCT/IB2019/052589
申请日：2019-03-29
申请人： CAMOZZI AUTOMATION S.P.A.
发明人： FERRARINI, Dario , CAMISANI, Andrea
IPC分类号： F16K31/126 , F16K31/128 , G05D16/20 , F15B21/08
摘要： A pressure regulator comprises an outlet pressure sensor (16), a loading electromagnetic valve (18), an unloading electromagnetic valve (20) and a regulator control circuit (30) operatively connected to the loading electromagnetic valve (18) and to the unloading electromagnetic valve (20) and configured to pilot the loading electromagnetic valve (18) and the unloading electromagnetic valve (20) so as to cancel an error signal given by the difference between an inlet signal corresponding to the desired outlet pressure and a feedback signal provided by the outlet pressure sensor. The regulator further comprises an engaging current analysis circuit configured to: a) detect and store reference characteristics of the waveform of the engaging current of the solenoid of the loading electromagnetic valve in a stable inlet pressure condition; b) monitor, during the operation of the regulator, the waveform of said engaging current so as to detect any variations of its characteristics with respect to the corresponding reference characteristics; c) in the event of variation, provide a pilot modulation signal to the loading electromagnetic valve (18) and/or the unloading electromagnetic valve (20) and/or a pressure variation signal to the control circuit (30).

2. 发明申请

WO2019043572A1 DIAGNOSTIC DEVICE AND METHOD FOR SOLENOID VALVES 审中-公开
公开(公告)号：WO2019043572A1
公开(公告)日：2019-03-07
申请号：PCT/IB2018/056550
申请日：2018-08-28
申请人： CAMOZZI AUTOMATION S.P.A.
发明人： FERRARINI, Dario , CAMISANI, Andrea
IPC分类号： H01F7/18 , F16K37/00 , G01R31/06
摘要： A diagnostic method for diagnosing a malfunction of a solenoid valve comprises the steps of: a) storing in a non-volatile memory register the reference features of the waveform of the solenoid current, b) detecting the features of the waveform of the solenoid current during the operation of the solenoid valve; c) comparing the reference features with the detected features; a) in the event of a deviation between the value of the features detected and the value of the reference features, comparing the value of the fluid pressure entering the solenoid valve inlet orifice with a predetermined range of pressure values; e) in the case of deviation of the pressure value with respect to said predetermined range of pressure values, adjusting' the pressure value and repeating steps b) and c); f) in the event of a deviation between the value of the features detected and the value of the reference and fluid pressure features within the range of predetermined pressure values, generating an alarm signal due to malfunction of the solenoid valve.

3. 发明申请

WO2020044175A1 A DIAGNOSTIC METHOD AND DEVICE FOR SOLENOID VALVES 审中-公开
公开(公告)号：WO2020044175A1
公开(公告)日：2020-03-05
申请号：PCT/IB2019/057045
申请日：2019-08-21
申请人： CAMOZZI AUTOMATION S.P.A.
发明人： FERRARINI, Dario , CAMISANI, Andrea
IPC分类号： F15B19/00 , F16K37/00 , F15B13/044 , F15B20/00 , G01R31/28 , H01F7/18
摘要： A diagnostic method to diagnose a malfunction of a solenoid valve comprises: a) detecting the first current peak ( IPEAK ) of the solenoid current generated by the engagement of the movable core; b) verifying if the waveform of the solenoid current has, after said first current peak and before reaching a minimum current value (I VALLEY ) corresponding to the end of the stroke of the movable core inside the solenoid, an inflection and/or other relative minimum (m) and maximum (M) points.

4. 发明申请

WO2019043573A1 DIAGNOSTIC DEVICE AND METHOD FOR SOLENOID VALVES 审中-公开
公开(公告)号：WO2019043573A1
公开(公告)日：2019-03-07
申请号：PCT/IB2018/056551
申请日：2018-08-28
申请人： CAMOZZI AUTOMATION S.P.A.
发明人： FERRARINI, Dario , CAMISANI, Andrea
IPC分类号： H01F7/18 , F16K37/00 , G01R31/06
摘要： A diagnostic method for solenoid valves comprises the steps of: a) detecting,, at the excitation of the solenoid, the rate of variation over time (dV/dt) of the supply voltage of the solenoid and comparing it with a predetermined value; b) if said variation rate is less than said predetermined value, generating an error signal, otherwise, c) detecting the characteristics of the waveform of the solenoid current over a time interval between the solenoid's moment of excitation and the moment wherein the movable core reaches the end-stroke position; d) comparing the characteristics of the waveform detected with predetermined threshold values; e) if the detected characteristics are less than said predetermined threshold, values, generating an. alarm signal, otherwise f) when the solenoid current is in steady state, calculating the value of solenoid resistance (R) and comparing it with a predetermined minimum resistance value (R0) and with a predetermined maximum resistance value (R1); g) if the value of the solenoid resistance (R) is less than the predetermined minimum resistance value (R0) or greater than the predetermined maximum resistance value (R1), generating an alarm signal.

5. 发明公开

EP3844402A1 A DIAGNOSTIC METHOD AND DEVICE FOR SOLENOID VALVES 有权
公开(公告)号：EP3844402A1
公开(公告)日：2021-07-07
申请号：EP19769904.4
申请日：2019-08-21
申请人： Camozzi Automation S.p.A.
发明人： FERRARINI, Dario , CAMISANI, Andrea
IPC分类号： F15B19/00 , F16K37/00 , F15B13/044 , F15B20/00 , G01R31/28 , H01F7/18

6. 发明公开

EP3676860A1 DIAGNOSTIC DEVICE AND METHOD FOR SOLENOID VALVES 有权
公开(公告)号：EP3676860A1
公开(公告)日：2020-07-08
申请号：EP18779022.5
申请日：2018-08-28
申请人： Camozzi Automation S.p.A.
发明人： FERRARINI, Dario , CAMISANI, Andrea
IPC分类号： H01F7/18 , F16K37/00 , G01R31/06

7. 发明公开

EP3676861A1 DIAGNOSTIC DEVICE AND METHOD FOR SOLENOID VALVES 有权
公开(公告)号：EP3676861A1
公开(公告)日：2020-07-08
申请号：EP18783091.4
申请日：2018-08-28
申请人： Camozzi Automation S.p.A.
发明人： FERRARINI, Dario , CAMISANI, Andrea
IPC分类号： H01F7/18 , F16K37/00 , G01R31/06

8. 发明公开

EP3775643A1 PRESSURE REGULATOR 有权
公开(公告)号：EP3775643A1
公开(公告)日：2021-02-17
申请号：EP19721109.7
申请日：2019-03-29
申请人： Camozzi Automation S.p.A.
发明人： FERRARINI, Dario , CAMISANI, Andrea
IPC分类号： F16K31/126 , F16K31/128 , G05D16/20 , F15B21/08

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