GB2016746A – Fluid pressure control system
– Google Patents
GB2016746A – Fluid pressure control system
– Google Patents
Fluid pressure control system
Info
Publication number
GB2016746A
GB2016746A
GB7908726A
GB7908726A
GB2016746A
GB 2016746 A
GB2016746 A
GB 2016746A
GB 7908726 A
GB7908726 A
GB 7908726A
GB 7908726 A
GB7908726 A
GB 7908726A
GB 2016746 A
GB2016746 A
GB 2016746A
Authority
GB
United Kingdom
Prior art keywords
control system
fluid pressure
pressure control
fluid
pressure
Prior art date
1978-03-16
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7908726A
Other versions
GB2016746B
(en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KNORR BREMSE GmbH
Knorr Bremse AG
Original Assignee
KNORR BREMSE GmbH
Knorr Bremse AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1978-03-16
Filing date
1979-03-13
Publication date
1979-09-26
1979-03-13
Application filed by KNORR BREMSE GmbH, Knorr Bremse AG
filed
Critical
KNORR BREMSE GmbH
1979-09-26
Publication of GB2016746A
publication
Critical
patent/GB2016746A/en
1982-12-15
Application granted
granted
Critical
1982-12-15
Publication of GB2016746B
publication
Critical
patent/GB2016746B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G05—CONTROLLING; REGULATING
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D16/00—Control of fluid pressure
G05D16/20—Control of fluid pressure characterised by the use of electric means
G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
G05D16/2046—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means the plurality of throttling means being arranged for the control of a single pressure from a plurality of converging pressures
G05D16/2053—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means the plurality of throttling means being arranged for the control of a single pressure from a plurality of converging pressures the plurality of throttling means comprising only a first throttling means acting on a higher pressure and a second throttling means acting on a lower pressure, e.g. the atmosphere
G—PHYSICS
G05—CONTROLLING; REGULATING
G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
G05B11/00—Automatic controllers
G05B11/01—Automatic controllers electric
G05B11/26—Automatic controllers electric in which the output signal is a pulse-train
G05B11/28—Automatic controllers electric in which the output signal is a pulse-train using pulse-height modulation; using pulse-width modulation
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T137/00—Fluid handling
Y10T137/2496—Self-proportioning or correlating systems
Y10T137/2544—Supply and exhaust type
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T137/00—Fluid handling
Y10T137/7722—Line condition change responsive valves
Y10T137/7758—Pilot or servo controlled
Y10T137/7761—Electrically actuated valve
GB7908726A
1978-03-16
1979-03-13
Fluid pressure control system
Expired
GB2016746B
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE2811345A
DE2811345C2
(en)
1978-03-16
1978-03-16
Pressure regulators for pneumatic pressures, in particular in vehicles
Publications (2)
Publication Number
Publication Date
GB2016746A
true
GB2016746A
(en)
1979-09-26
GB2016746B
GB2016746B
(en)
1982-12-15
Family
ID=6034554
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB7908726A
Expired
GB2016746B
(en)
1978-03-16
1979-03-13
Fluid pressure control system
Country Status (6)
Country
Link
US
(1)
US4253480A
(en)
CA
(1)
CA1121028A
(en)
CH
(1)
CH641905A5
(en)
DE
(1)
DE2811345C2
(en)
FR
(1)
FR2420158B1
(en)
GB
(1)
GB2016746B
(en)
Cited By (19)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0031937A1
(en)
*
1979-12-21
1981-07-15
S-INSTALLATION Ky
An electro-pneumatic or electro-hydraulic transducer
EP0075657A2
(en)
*
1981-09-29
1983-04-06
Dr.Ing.h.c. F. Porsche Aktiengesellschaft
Control device for electromagnetic valves
FR2528192A1
(en)
*
1982-06-03
1983-12-09
Gema Ransburg Ag
PRESSURE REGULATING APPARATUS FOR GASEOUS AND LIQUID FLUIDS
EP0107610A1
(en)
*
1982-10-21
1984-05-02
United Technologies Corporation
Electrical signal to pneumatic pressure signal transducer
EP0118679A2
(en)
*
1983-03-10
1984-09-19
Litton Systems, Inc.
Oxygen partial pressure controller for a pressure swing adsorption system
GB2145249A
(en)
*
1983-08-04
1985-03-20
Microflow Uk Limited
Liquid supply line control circuitry
FR2607276A1
(en)
*
1986-10-24
1988-05-27
Knorr Bremse Ag
Pressure regulator esp. for braking cylinder
FR2609339A1
(en)
*
1986-10-24
1988-07-08
Knorr Bremse Ag
Pressure regulator esp. for vehicle brakes
EP0294072A2
(en)
*
1987-06-01
1988-12-07
Parker Hannifin Corporation
Control device for regulating flow of pressurized gas between two pressurized gas devices
WO2008140537A1
(en)
*
2006-12-13
2008-11-20
Alcon, Inc.
Adjustable pneumatic system for a surgical machine
US8080029B2
(en)
2007-09-21
2011-12-20
Novartis Ag
System for actuation of a vitreous cutter
US8312800B2
(en)
2006-12-21
2012-11-20
Novartis Ag
Pneumatic system for a vitrector
US8679241B2
(en)
2006-10-30
2014-03-25
Novartis Ag
Gas pressure monitor for pneumatic surgical machine
US8728108B2
(en)
2009-12-10
2014-05-20
Alcon Research, Ltd.
Systems and methods for dynamic pneumatic valve driver
US8808318B2
(en)
2011-02-28
2014-08-19
Alcon Research, Ltd.
Surgical probe with increased fluid flow
US8818564B2
(en)
2009-08-31
2014-08-26
Alcon Research, Ltd.
Pneumatic pressure output control by drive valve duty cycle calibration
US8821524B2
(en)
2010-05-27
2014-09-02
Alcon Research, Ltd.
Feedback control of on/off pneumatic actuators
US9060841B2
(en)
2011-08-31
2015-06-23
Alcon Research, Ltd.
Enhanced flow vitrectomy probe
US9241830B2
(en)
2006-12-15
2016-01-26
Novartis Ag
Pressure monitor for pneumatic vitrectomy machine
Families Citing this family (63)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2902337A1
(en)
*
1979-01-22
1980-07-24
Knorr Bremse Gmbh
BRAKE PRESSURE REGULATORS FOR PNEUMATIC BRAKES OF VEHICLES, IN PARTICULAR RAIL VEHICLES
EP0019463B1
(en)
*
1979-05-18
1986-02-12
John Sansbury Knubley
Air dispensing apparatus
US4456038A
(en)
*
1981-03-25
1984-06-26
Hennessy Industries, Inc.
Apparatus for pressurizing tires to a desired level
DE3134065A1
(en)
*
1981-08-28
1983-03-10
Mannesmann Rexroth GmbH, 8770 Lohr
PRESSURE CONTROL VALVE
US4456025A
(en)
*
1981-12-28
1984-06-26
Childs Willard D
Regulator for high volume air flow control
DE3329347C2
(en)
*
1983-08-13
1986-10-09
Danfoss A/S, Nordborg
Electro-hydraulic actuation device for a continuously adjustable valve
CH662895A5
(en)
*
1983-09-27
1987-10-30
Fischer Ag Georg
METHOD AND DEVICE FOR REGULATING A SIZE.
US4694409A
(en)
*
1984-06-25
1987-09-15
Monorail, Inc.
Microprocessor based air inflation control system
DE3427204A1
(en)
*
1984-07-24
1986-02-06
Voith-Turbo Gmbh & Co Kg, 7180 Crailsheim
VALVE ARRANGEMENT FOR CONTROLLING THE FLOW OF FLOWING MEDIA
JPS61116107A
(en)
*
1984-11-09
1986-06-03
Hitachi Ltd
Actuator controller
DE3502276A1
(en)
*
1985-01-24
1986-07-24
Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover
DEVICE FOR CONTINUOUSLY CONTROLLING A SOLENOID VALVE DESIGNED NORMALLY FOR DISCONTINUOUS OPERATION
DE3521486A1
(en)
*
1985-06-14
1986-12-18
Knorr-Bremse AG, 8000 München
AUXILIARY AND PARKING BRAKE FOR COMMERCIAL VEHICLES
US4796661A
(en)
*
1985-08-30
1989-01-10
Yuken Kogyo Kabushiki Kaisha
Proportional electro-hydraulic pressure control valve
DE3680910D1
(en)
*
1986-05-02
1991-09-19
Leybold Heraeus Gmbh & Co Kg
METHOD FOR REGULATING AND / OR CONTROLLING PRESSURE IN A RECIPIENT.
US4705067A
(en)
*
1986-05-13
1987-11-10
Coffee Curtis L
Electric-to-pressure transducer
US4901758A
(en)
*
1986-06-27
1990-02-20
Cook Daniel E
Device for the remote control of pneumatically operated mechanisms, which has fast, high resolution response over a broad range of pressures and which is insensitive to position or vibration
DE3628061A1
(en)
*
1986-08-19
1988-03-03
Mak Maschinenbau Krupp
Hydraulic or pneumatic brake control – uses two parallel valves, one connected to pressure source and other to return under no pressure
EP0275933B1
(en)
*
1987-01-17
1994-07-27
Jasco Corporation
Pressure control apparatus
JP2906410B2
(en)
*
1987-04-20
1999-06-21
三菱自動車工業株式会社
Hydraulic control method for automatic transmission
DE3812672C2
(en)
*
1987-04-20
1995-09-28
Mitsubishi Motors Corp
Hydraulic control method for a hydraulically actuated load
US4904027A
(en)
*
1988-10-03
1990-02-27
American Standard Inc.
Digital air brake control system
US4987933A
(en)
*
1989-03-03
1991-01-29
Eaton Corporation
Fluid flow control method and apparatus for minimizing particle contamination
US5240046A
(en)
*
1989-03-03
1993-08-31
Eaton Corporation
Fluid flow control method and apparatus for minimizing particle contamination
JPH02280206A
(en)
*
1989-04-21
1990-11-16
Eishin Giken:Kk
Pressure setter
US5020564A
(en)
*
1989-06-29
1991-06-04
Allied-Signal Inc.
Doser system for regulating pressure in a control chamber of a test stand
US5357996A
(en)
*
1990-08-18
1994-10-25
Oxford Glycosystems Limited
Pressure regulating system
US5094260A
(en)
*
1990-10-26
1992-03-10
Alcon Surgical, Inc.
Proportional valve and pressure control system
US5257640A
(en)
*
1991-10-18
1993-11-02
Delajoud Pierre R
Fine pressure control system for high pressure gas
US5253669A
(en)
*
1992-04-23
1993-10-19
Span Instruments, Inc.
Controlling process gas flow
US5190068A
(en)
*
1992-07-02
1993-03-02
Brian Philbin
Control apparatus and method for controlling fluid flows and pressures
US5957393A
(en)
*
1994-03-03
1999-09-28
Nordson Corporation
Air regulator control system for powder coating operation
DE4406235A1
(en)
*
1994-02-25
1995-08-31
Wabco Vermoegensverwaltung
Pressure control device
US5657972A
(en)
*
1994-12-22
1997-08-19
Isi Norgren, Inc.
Clamp with inflatable bladder
US5499647A
(en)
*
1995-01-12
1996-03-19
Mac Valves, Inc.
Method and valve assembly for controlling a pilot signal
US5526838A
(en)
*
1995-01-12
1996-06-18
Mac Valves, Inc.
Method and valve assembly for controlling a pilot signal
US6142163A
(en)
*
1996-03-29
2000-11-07
Lam Research Corporation
Method and apparatus for pressure control in vacuum processors
US5758680A
(en)
*
1996-03-29
1998-06-02
Lam Research Corporation
Method and apparatus for pressure control in vacuum processors
US5803107A
(en)
*
1996-03-29
1998-09-08
Lam Research Corporation
Method and apparatus for pressure control in vacuum processors
US5758929A
(en)
*
1996-09-11
1998-06-02
New York Air Brake Corporation
Variable capacity electropneumatic control valve
US6142169A
(en)
*
1997-03-28
2000-11-07
Tetra Laval Holdings & Finance, Sa
Sterile tank venting system for a filling machine
DE19905684A1
(en)
*
1999-02-11
2000-08-17
Wabco Gmbh & Co Ohg
Pressure control device
DE19946348A1
(en)
*
1999-09-28
2001-03-29
Bosch Gmbh Robert
Magnetic valve drive method involves determining variable parameter of drive signal so valve stroke remains essentially outside stroke region with unstable force equilibrium
JP3634733B2
(en)
*
2000-09-22
2005-03-30
Smc株式会社
Fluid pressure regulator
JP4864280B2
(en)
2001-04-24
2012-02-01
ブルックス・インストルメント・エルエルシー
Mass flow controller system and method
US7505818B1
(en)
*
2001-09-07
2009-03-17
Siemens Energy & Automation, Inc.
Converter method, system and apparatus
US7073392B2
(en)
*
2002-07-19
2006-07-11
Celerity, Inc.
Methods and apparatus for pressure compensation in a mass flow controller
US7115520B2
(en)
*
2003-04-07
2006-10-03
Unaxis Usa, Inc.
Method and apparatus for process control in time division multiplexed (TDM) etch process
US7381650B2
(en)
*
2003-04-07
2008-06-03
Unaxis Usa Inc.
Method and apparatus for process control in time division multiplexed (TDM) etch processes
DE10350560A1
(en)
*
2003-10-29
2005-06-02
Daimlerchrysler Ag
Brake system, especially for commercial vehicles
US7216019B2
(en)
*
2004-07-08
2007-05-08
Celerity, Inc.
Method and system for a mass flow controller with reduced pressure sensitivity
DE102004049662A1
(en)
*
2004-10-12
2006-04-20
Nanion Technologies Gmbh
Device for application of over- and under-pressure esp. for micro-fluidic experiments, uses membrane valve only partly opening during switching above specified frequencies
JP2006266533A
(en)
*
2005-03-22
2006-10-05
Fuji Koki Corp
Valve control system and valve control method
DE102005021887A1
(en)
*
2005-05-04
2006-11-16
Kässbohrer Geländefahrzeug AG
Method and device for driving stability increase of motor vehicles
NL1030669C2
(en)
*
2005-12-14
2007-06-15
Weir Minerals Netherlands Bv
Gas volume damping device.
DE102007006725A1
(en)
*
2007-02-06
2008-08-07
Siemens Ag
Performance-optimized safety brake
US8215329B2
(en)
2008-02-01
2012-07-10
Woodward, Inc.
Digital closed loop proportional hydraulic pressure controller
US20120040328A1
(en)
*
2009-01-28
2012-02-16
Michael Niederbacher
Fermenter feed system for fermentable biomass of a biogas system and method for operating the feed system
TWM423354U
(en)
*
2011-08-10
2012-02-21
Ableprint Technology Co Ltd
Gas concentrations control device of pressure container
US9285057B2
(en)
*
2012-10-05
2016-03-15
Fisher Controls International Llc
Methods and apparatus for process device calibration
US10386863B2
(en)
*
2013-10-31
2019-08-20
Fuiikin Incorporated
Pressure-type flow controller
DE102015007424A1
(en)
*
2015-06-09
2016-12-15
Hydac Fluidtechnik Gmbh
Pressure control device
US11306840B2
(en)
2017-08-24
2022-04-19
The Penn State Research Foundation
Switched nozzle valve
DE102019106682B4
(en)
*
2019-03-15
2022-07-07
Bürkert Werke GmbH & Co. KG
pressure regulator
Family Cites Families (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3402972A
(en)
*
1966-08-11
1968-09-24
Gen Electric
Continuous pressure control system
US3398993A
(en)
*
1966-09-14
1968-08-27
Westinghouse Air Brake Co
Load modulated combined dynamic and fluid pressure brake control system for railway cars
US3596873A
(en)
*
1968-12-04
1971-08-03
Optical Coating Laboratory Inc
Valve assembly and servo system incorporating same
US3659631A
(en)
*
1970-08-05
1972-05-02
Moore Business Forms Inc
Controller for a pulsed servovalve
FR2140926A5
(en)
*
1971-06-09
1973-01-19
Citroen Sa
US3807810A
(en)
*
1971-07-07
1974-04-30
Yarber A
Brake control valve system
US3858598A
(en)
*
1971-12-09
1975-01-07
Cameron Iron Works Inc
Pressure control apparatus
JPS5218875B2
(en)
*
1972-06-21
1977-05-24
FR2293736A1
(en)
*
1974-12-02
1976-07-02
Wabco Westinghouse
Inlet and outlet valve control arrangement – uses DC error signal with superimposed triangular waveform to minimise operating error (BE020676)
DE2732298A1
(en)
*
1977-07-16
1979-02-01
Bosch Gmbh Robert
Pulse generator with high switching frequency – has pulse duty factor determined by two control voltages applied to operational amplifier integrator feeding hysteresis switch
1978
1978-03-16
DE
DE2811345A
patent/DE2811345C2/en
not_active
Expired
1979
1979-03-07
FR
FR7905865A
patent/FR2420158B1/en
not_active
Expired
1979-03-13
GB
GB7908726A
patent/GB2016746B/en
not_active
Expired
1979-03-15
US
US06/020,654
patent/US4253480A/en
not_active
Expired – Lifetime
1979-03-15
CH
CH246179A
patent/CH641905A5/en
not_active
IP Right Cessation
1979-03-16
CA
CA000323583A
patent/CA1121028A/en
not_active
Expired
Cited By (24)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0031937A1
(en)
*
1979-12-21
1981-07-15
S-INSTALLATION Ky
An electro-pneumatic or electro-hydraulic transducer
EP0075657A3
(en)
*
1981-09-29
1986-02-19
Dr.Ing.H.C. F. Porsche Aktiengesellschaft
Control device for electromagnetic valves
EP0075657A2
(en)
*
1981-09-29
1983-04-06
Dr.Ing.h.c. F. Porsche Aktiengesellschaft
Control device for electromagnetic valves
FR2528192A1
(en)
*
1982-06-03
1983-12-09
Gema Ransburg Ag
PRESSURE REGULATING APPARATUS FOR GASEOUS AND LIQUID FLUIDS
EP0107610A1
(en)
*
1982-10-21
1984-05-02
United Technologies Corporation
Electrical signal to pneumatic pressure signal transducer
EP0118679A3
(en)
*
1983-03-10
1985-10-23
Litton Systems, Inc.
Oxygen partial pressure controller for a pressure swing adsorption system
EP0118679A2
(en)
*
1983-03-10
1984-09-19
Litton Systems, Inc.
Oxygen partial pressure controller for a pressure swing adsorption system
GB2145249A
(en)
*
1983-08-04
1985-03-20
Microflow Uk Limited
Liquid supply line control circuitry
FR2607276A1
(en)
*
1986-10-24
1988-05-27
Knorr Bremse Ag
Pressure regulator esp. for braking cylinder
FR2609339A1
(en)
*
1986-10-24
1988-07-08
Knorr Bremse Ag
Pressure regulator esp. for vehicle brakes
EP0294072A2
(en)
*
1987-06-01
1988-12-07
Parker Hannifin Corporation
Control device for regulating flow of pressurized gas between two pressurized gas devices
EP0294072A3
(en)
*
1987-06-01
1990-03-07
Parker Hannifin Corporation
Electrically controlled variable pressure pneumatic circuit
US8679241B2
(en)
2006-10-30
2014-03-25
Novartis Ag
Gas pressure monitor for pneumatic surgical machine
US9326826B2
(en)
2006-10-30
2016-05-03
Novartis Ag
Gas pressure monitor for pneumatic surgical machine
WO2008140537A1
(en)
*
2006-12-13
2008-11-20
Alcon, Inc.
Adjustable pneumatic system for a surgical machine
US8162000B2
(en)
2006-12-13
2012-04-24
Novartis Ag
Adjustable pneumatic system for a surgical machine
US9241830B2
(en)
2006-12-15
2016-01-26
Novartis Ag
Pressure monitor for pneumatic vitrectomy machine
US8312800B2
(en)
2006-12-21
2012-11-20
Novartis Ag
Pneumatic system for a vitrector
US8080029B2
(en)
2007-09-21
2011-12-20
Novartis Ag
System for actuation of a vitreous cutter
US8818564B2
(en)
2009-08-31
2014-08-26
Alcon Research, Ltd.
Pneumatic pressure output control by drive valve duty cycle calibration
US8728108B2
(en)
2009-12-10
2014-05-20
Alcon Research, Ltd.
Systems and methods for dynamic pneumatic valve driver
US8821524B2
(en)
2010-05-27
2014-09-02
Alcon Research, Ltd.
Feedback control of on/off pneumatic actuators
US8808318B2
(en)
2011-02-28
2014-08-19
Alcon Research, Ltd.
Surgical probe with increased fluid flow
US9060841B2
(en)
2011-08-31
2015-06-23
Alcon Research, Ltd.
Enhanced flow vitrectomy probe
Also Published As
Publication number
Publication date
GB2016746B
(en)
1982-12-15
US4253480A
(en)
1981-03-03
DE2811345C2
(en)
1986-12-11
CA1121028A
(en)
1982-03-30
CH641905A5
(en)
1984-03-15
DE2811345A1
(en)
1979-09-27
FR2420158B1
(en)
1985-12-13
FR2420158A1
(en)
1979-10-12
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Legal Events
Date
Code
Title
Description
1985-12-24
732
Registration of transactions, instruments or events in the register (sect. 32/1977)
1997-11-05
PCNP
Patent ceased through non-payment of renewal fee
Effective date:
19970313