[go: up one dir, main page]

DK135485A - ELECTRO-HYDRAULIC ADJUSTING DRIVE FOR CONTINUOUS REGULATION - Google Patents

ELECTRO-HYDRAULIC ADJUSTING DRIVE FOR CONTINUOUS REGULATION Download PDF

Info

Publication number
DK135485A
DK135485A DK135485A DK135485A DK135485A DK 135485 A DK135485 A DK 135485A DK 135485 A DK135485 A DK 135485A DK 135485 A DK135485 A DK 135485A DK 135485 A DK135485 A DK 135485A
Authority
DK
Denmark
Prior art keywords
adjusting drive
pressure
pump
piston
continuous regulation
Prior art date
Application number
DK135485A
Other languages
Danish (da)
Other versions
DK162113B (en
DK162113C (en
DK135485D0 (en
Inventor
Hans-Michael Mayer
Original Assignee
Elektrowatt 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.)
Filing date
Publication date
Application filed by Elektrowatt Ag filed Critical Elektrowatt Ag
Priority to DK135485A priority Critical patent/DK162113C/en
Publication of DK135485D0 publication Critical patent/DK135485D0/en
Publication of DK135485A publication Critical patent/DK135485A/en
Publication of DK162113B publication Critical patent/DK162113B/en
Application granted granted Critical
Publication of DK162113C publication Critical patent/DK162113C/en

Links

Landscapes

  • Reciprocating Pumps (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

In a cylindrical housing consisting of two parts 10, 12, there is a piston 14 which is sealed by means of a roll diaphragm 16 and which is mounted displaceably against the force from a return spring 26. For operation, use is made of a pivoted-armature pump 30 which is driven with variable a.c. voltage via two supply lines 32. This pump sucks hydraulic fluid 18, through a suction opening 40, from a storage space 20 and conveys it via a non-return valve 28 through a first opening 42 to a working space 24, in which way the piston 14 is, together with an operating rod 34, is displaced downwards. The pressure produced by the pump 30 is dependent on the voltage supplied. Between this pressure and the counter-pressure of the spring 26, a state of equilibrium is consequently obtained, so that the adjusting drive is suitable for continuous regulation. The non-return valve 28 is a diaphragm valve which makes a decisive contribution to the desired working characteristic of the adjusting drive, as it responds to small pressure differences. <IMAGE>
DK135485A 1985-03-26 1985-03-26 ELECTRO-HYDRAULIC ADJUSTING DRIVE FOR CONTINUOUS REGULATION DK162113C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK135485A DK162113C (en) 1985-03-26 1985-03-26 ELECTRO-HYDRAULIC ADJUSTING DRIVE FOR CONTINUOUS REGULATION

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK135485 1985-03-26
DK135485A DK162113C (en) 1985-03-26 1985-03-26 ELECTRO-HYDRAULIC ADJUSTING DRIVE FOR CONTINUOUS REGULATION

Publications (4)

Publication Number Publication Date
DK135485D0 DK135485D0 (en) 1985-03-26
DK135485A true DK135485A (en) 1986-09-27
DK162113B DK162113B (en) 1991-09-16
DK162113C DK162113C (en) 1992-02-17

Family

ID=8103928

Family Applications (1)

Application Number Title Priority Date Filing Date
DK135485A DK162113C (en) 1985-03-26 1985-03-26 ELECTRO-HYDRAULIC ADJUSTING DRIVE FOR CONTINUOUS REGULATION

Country Status (1)

Country Link
DK (1) DK162113C (en)

Also Published As

Publication number Publication date
DK162113B (en) 1991-09-16
DK162113C (en) 1992-02-17
DK135485D0 (en) 1985-03-26

Similar Documents

Publication Publication Date Title
ATE29983T1 (en) SPRING ELEMENT AND ITS USE.
GB2278892A (en) Hydraulic oil well pump drive system
US5090296A (en) Piston assembly and method
SE8603595D0 (en) TESTING HYDRAULIC DEVICE
JP3640447B2 (en) Fluid intensifier
DE3683947D1 (en) DRIVE FOR SLUDGE PISTON PUMP.
GB2340466A (en) Depth control device
ES2043923T3 (en) HYDRAULIC CONTROL DEVICE FOR THE DRIVE CONTROL OF A DOUBLE ACTING HYDRAULIC CYLINDER.
DE69937501D1 (en) COMPACT, RESISTOR-CONTROLLED MULTI-OUTPUT HYDRAULIC UNIT AND SEALING VALVE
US5032063A (en) Precision fluid pump
DK135485A (en) ELECTRO-HYDRAULIC ADJUSTING DRIVE FOR CONTINUOUS REGULATION
SE8501483L (en) ELECTRO-HYDRAULIC SETTING MANOVERDON FOR CONTINUOUS CONTROL
DE50205092D1 (en) Hydraulically driven diaphragm pump with prestressed diaphragm
BR8306392A (en) AUXILIARY DEVICE FOR REGULATING THE DRIVE PRESSURE OF A HYDRAULIC PUMP AND HYDRAULIC PUMP SYSTEM
FR2536246B1 (en)
SE7700353L (en) HIGH PRESSURE PUMP
FR2386709A1 (en) Gravity controlled hydraulic accumulator - has dead weight piston within cylinder contg. lubricating oil with inlet and outlet at opposite ends
ATE49266T1 (en) PIVOT DRIVE.
GB1501761A (en) Apparatus for regulating the output from an adjustable hydraulic pump
SU421543A1 (en) ADJUSTABLE CLAMP TO PRESSURE EASY
ATE53351T1 (en) MEDIA TRANSMITTER.
FR2343412A1 (en) Hydraulic ground follower system for agricultural machine - has spring loaded non-return valve to maintain back pressure on descent
JP2676110B2 (en) Fluid pressure continuously operated reciprocating actuator
RU95112407A (en) METHOD FOR STABILIZING OUTPUT PUMP HYDRAULIC PUMP INSTALLATION PARAMETERS
SU981672A1 (en) Twinned axial piston hydraulic machine output controller

Legal Events

Date Code Title Description
PBP Patent lapsed