NL8701922A - Hydraulic lift drive - has adjustable motor for both directions of travel without governor block but with pump and electromagnetic drop valve - Google Patents

Hydraulic lift drive - has adjustable motor for both directions of travel without governor block but with pump and electromagnetic drop valve Download PDF

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Publication number
NL8701922A
NL8701922A NL8701922A NL8701922A NL8701922A NL 8701922 A NL8701922 A NL 8701922A NL 8701922 A NL8701922 A NL 8701922A NL 8701922 A NL8701922 A NL 8701922A NL 8701922 A NL8701922 A NL 8701922A
Authority
NL
Netherlands
Prior art keywords
pump
travel
directions
drop valve
lift drive
Prior art date
Application number
NL8701922A
Other languages
Dutch (nl)
Original Assignee
Jacobus Leonardus Saam
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 Jacobus Leonardus Saam filed Critical Jacobus Leonardus Saam
Priority to NL8701922A priority Critical patent/NL8701922A/en
Publication of NL8701922A publication Critical patent/NL8701922A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

In the up-direction, an adjustable motor drives a pump corresp. to the desired direction of travel. In the down direction, the drive motor is rotated in its direction of rotation and an electromagnetic drop valve is opened. The drive motor is now driven by the pump and the drive motor provides the desired direction of traven.

Description

• I - * >• I - *>

Octrooiaanvraag J.I». Saam 05-12-30 Cicerolaan 17 3584 AJ UTRECHTPatent application J.I ». Saam 05-12-30 Cicerolaan 17 3584 AJ UTRECHT

ENERGIEZUINIGE HYDRAULISCHE LIETAANDRIJVING MET REGELBARE MOTOR VOOR BEIDE RIJRICHTINGEN (ZONDER STUURBLOK) ,,OP"RICHTING.ENERGY EFFICIENT HYDRAULIC DRIVE DRIVE WITH ADJUSTABLE MOTOR FOR BOTH DIRECTIONS (WITHOUT STEERING BLOCK) "ON" DIRECTION.

Regelbare motor drijft pomp aan overeenkomstig gewenst rijgedrag ,,NEER"RICHTING.Adjustable motor drives pump according to desired driving behavior "DOWN" DIRECTION.

Draairichting van regelbare aan-drijfmotor wordt omgedraaid, electromagnetisch bediende daal-klep wordt geopend.The direction of rotation of the adjustable drive motor is reversed, the solenoid-operated lowering valve is opened.

Aandrijfmotor wordt nu aangedreven door pomp.Drive motor is now driven by pump.

Regelbare aandrijfmotor zorgt voor gewenst rijgedrag.Adjustable drive motor ensures desired driving behavior.

VOORDESb; ! Max. 50% energiebesparing doordat bij dalen aandrijfmotor als generator terugvoedt in het net.FRONT DESb; ! Max. 50% energy savings because when the drive motor drops as a generator, it feeds back into the grid.

(Bij gebruikelijke systemen vloeit de olie onbenut terug in de tank) 2 Rijgedrag minder afhankelijk van viscositeitsschommelingen.(In conventional systems, the oil flows unused back into the tank) 2 Driving behavior less dependent on viscosity fluctuations.

8701922 * Q [j2^8701922 * Q [j2 ^

Claims (1)

2 Rijgedrag optimaal regelbaar. ( Gebruikelijke systemen met stuurblok viscositeitsgevoelig.) öM 87019 22·*2 Driving behavior optimally adjustable. (Conventional systems with control block viscosity sensitive.) ÖM 87019 22 · *
NL8701922A 1987-08-14 1987-08-14 Hydraulic lift drive - has adjustable motor for both directions of travel without governor block but with pump and electromagnetic drop valve NL8701922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL8701922A NL8701922A (en) 1987-08-14 1987-08-14 Hydraulic lift drive - has adjustable motor for both directions of travel without governor block but with pump and electromagnetic drop valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8701922A NL8701922A (en) 1987-08-14 1987-08-14 Hydraulic lift drive - has adjustable motor for both directions of travel without governor block but with pump and electromagnetic drop valve
NL8701922 1987-08-14

Publications (1)

Publication Number Publication Date
NL8701922A true NL8701922A (en) 1989-03-01

Family

ID=19850459

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8701922A NL8701922A (en) 1987-08-14 1987-08-14 Hydraulic lift drive - has adjustable motor for both directions of travel without governor block but with pump and electromagnetic drop valve

Country Status (1)

Country Link
NL (1) NL8701922A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558934A1 (en) * 1992-03-04 1993-09-08 Inventio Ag Method and arrangement to conserve electric power for driving a hydraulic elevator
CN103241619A (en) * 2013-05-22 2013-08-14 太原理工大学 Energy saving elevator and operation control method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558934A1 (en) * 1992-03-04 1993-09-08 Inventio Ag Method and arrangement to conserve electric power for driving a hydraulic elevator
US5373121A (en) * 1992-03-04 1994-12-13 Inventio Ag Method and apparatus for saving electrical energy in an hydraulic elevator drive
CN103241619A (en) * 2013-05-22 2013-08-14 太原理工大学 Energy saving elevator and operation control method thereof

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