EP1959146A3 - Electrohydraulic actuator device - Google Patents

Electrohydraulic actuator device Download PDF

Info

Publication number
EP1959146A3
EP1959146A3 EP07123422A EP07123422A EP1959146A3 EP 1959146 A3 EP1959146 A3 EP 1959146A3 EP 07123422 A EP07123422 A EP 07123422A EP 07123422 A EP07123422 A EP 07123422A EP 1959146 A3 EP1959146 A3 EP 1959146A3
Authority
EP
European Patent Office
Prior art keywords
piston
pressure medium
control piston
control
actuator device
Prior art date
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
EP07123422A
Other languages
German (de)
French (fr)
Other versions
EP1959146A2 (en
EP1959146B1 (en
Inventor
Jörg Dantlgraber
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1959146A2 publication Critical patent/EP1959146A2/en
Publication of EP1959146A3 publication Critical patent/EP1959146A3/en
Application granted granted Critical
Publication of EP1959146B1 publication Critical patent/EP1959146B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/12—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which both the controlling element and the servomotor control the same member influencing a fluid passage and are connected to that member by means of a differential gearing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

Offenbart ist eine elektrohydraulische Antriebseinrichtung mit einem Zylindergehäuse (2) an dem ein Steuerkolben (6) geführt ist, der über einen Elektromotor (8) axial verschiebbar ist und mit einem Stellkolben (10) zusammenwirkt. Erfindungsgemäß ist der Steuerkolben zumindest abschnittsweise innerhalb des Stellkolbens geführt, wobei der Steuerkolben mindestens zwei Steuerkanten (12,14) aufweist, über die eine Druckmittelverbindung zwischen einem vom Stellkolben abschnittsweise begrenzten Arbeitsraum und einer Druckmittelquelle (22) oder einer Druckmittelsenke (24) auf- oder zusteuerbar ist.

Figure imgaf001
Disclosed is an electro-hydraulic drive device with a cylinder housing (2) on which a control piston (6) is guided, which is axially displaceable via an electric motor (8) and with an actuating piston (10) cooperates. According to the invention, the control piston is at least partially guided within the control piston, wherein the control piston at least two control edges (12,14) via which a pressure medium connection between a part of the actuator piston limited working space and a pressure medium source (22) or a pressure medium sink (24) or up is taxable.
Figure imgaf001
EP20070123422 2007-02-19 2007-12-18 Electrohydraulic actuator device Not-in-force EP1959146B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710008092 DE102007008092A1 (en) 2007-02-19 2007-02-19 Electrohydraulic drive device

Publications (3)

Publication Number Publication Date
EP1959146A2 EP1959146A2 (en) 2008-08-20
EP1959146A3 true EP1959146A3 (en) 2011-03-09
EP1959146B1 EP1959146B1 (en) 2012-07-11

Family

ID=39485171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070123422 Not-in-force EP1959146B1 (en) 2007-02-19 2007-12-18 Electrohydraulic actuator device

Country Status (2)

Country Link
EP (1) EP1959146B1 (en)
DE (1) DE102007008092A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011015672B4 (en) * 2011-03-31 2021-10-07 new HESTA blow moulding solutions GmbH & Co. KG Drive device for the blow mandrel of a blow molding machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8703507U1 (en) * 1987-03-09 1987-04-30 Gildemeister Ag, 4800 Bielefeld Feed drive
CH668463A5 (en) * 1984-05-14 1988-12-30 Sig Schweiz Industrieges Servo drive for fuel injection pump - has stepping motor driven plunger with hydraulic backing
DE3836401A1 (en) * 1988-10-26 1990-05-03 Bosch Gmbh Robert Hydraulic linear drive
DE19508190A1 (en) * 1994-03-09 1995-09-14 Eckehart Schulze Hydraulic drive unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19537109C2 (en) 1995-10-05 2003-04-24 Hesta Graham Gmbh & Co Kg Method for controlling the feed and retraction movements of the blow mandrel of a blow molding machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH668463A5 (en) * 1984-05-14 1988-12-30 Sig Schweiz Industrieges Servo drive for fuel injection pump - has stepping motor driven plunger with hydraulic backing
DE8703507U1 (en) * 1987-03-09 1987-04-30 Gildemeister Ag, 4800 Bielefeld Feed drive
DE3836401A1 (en) * 1988-10-26 1990-05-03 Bosch Gmbh Robert Hydraulic linear drive
DE19508190A1 (en) * 1994-03-09 1995-09-14 Eckehart Schulze Hydraulic drive unit

Also Published As

Publication number Publication date
DE102007008092A1 (en) 2008-08-21
EP1959146A2 (en) 2008-08-20
EP1959146B1 (en) 2012-07-11

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