EP1985859A2 - Hydraulisches Pumpensystem mit integriertem Steuerschieber - Google Patents

Hydraulisches Pumpensystem mit integriertem Steuerschieber Download PDF

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Publication number
EP1985859A2
EP1985859A2 EP08398005A EP08398005A EP1985859A2 EP 1985859 A2 EP1985859 A2 EP 1985859A2 EP 08398005 A EP08398005 A EP 08398005A EP 08398005 A EP08398005 A EP 08398005A EP 1985859 A2 EP1985859 A2 EP 1985859A2
Authority
EP
European Patent Office
Prior art keywords
hydraulic pump
oil
valve
axle
elements
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.)
Withdrawn
Application number
EP08398005A
Other languages
English (en)
French (fr)
Other versions
EP1985859A3 (de
Inventor
Rui Jorge Da Silva Bernardes
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.)
ABER- Embraiagens e Commandos Hidraulicos Antonio Bernardes Lda
Original Assignee
ABER- Embraiagens e Commandos Hidraulicos Antonio Bernardes Lda
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 ABER- Embraiagens e Commandos Hidraulicos Antonio Bernardes Lda filed Critical ABER- Embraiagens e Commandos Hidraulicos Antonio Bernardes Lda
Publication of EP1985859A2 publication Critical patent/EP1985859A2/de
Publication of EP1985859A3 publication Critical patent/EP1985859A3/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Definitions

  • the present invention is about a hydraulic pump system with integrated distributor valve constituted of two parts, which is normally applied, directly or indirectly, to power take off's that are located in the gear box of the trucks.
  • the present invention is about a system of hydraulic pump with integrated valve, which for its characteristics of conception and functioning is different from the systems found in the market.
  • the systems of hydraulic pump with integrated valve presented in the market have a structure essentially composed of 3 (three) parts, which are the front cover, the body and the back cover; while the present invention is composed of two parts, which are the cover and the body.
  • This type of structure differs from the divulged in the present invention as, for example, in order to have a functioning on a work pressure of 175bar they need to have an approximated weight of 32,2Kg, and they still need cylinders of superior dimension.
  • the system of the present invention includes a hydraulic pump capable of operating under high pressures conditions with the aid of compensating plates that are located in the extremities of the generating elements of power or load.
  • the aim of the present invention is the supplying of a solution for a pump system with integrated distributor valve, constructed in two parts, that are the grouping of the cover, which may be applied without the relief valves, and the body, which supports without any problem pressures up to 200 bar, with a maximum rotation of 1800rpm, for an approximated weight of 22Kg, for a pump of ⁇ 105cc.
  • This system is normally applied to heavy mobile equipment.
  • the object of the present invention is a system of hydraulic pump with integrated distributor valve (42) that has at least the following elements:
  • the compensating pressure plates (8) with seals (9) are located in the extremities of the generating elements of power or load and respectively maintained with the body of the pump (33) /cover of the pump (1); these can be made of bronze, aluminium or steel with projected bronze and have two drilled circular parts in the shape of a eight, in order to be able to compensate the pressure difference between the input and the output side, to which the two generating elements of power or load (10 & 7) are subject to.
  • the seals of the compensating plates (9) made of polymer have a rectangular section and can have inferior platforms in the extremities. The rectangular section is responsible for the sealing and the inferior platforms prevent the vibrations, as it can be observed in the details of Figure 6 .
  • the generating elements of power or load (10 & 7) of the hydraulic pump system with integrated distributor valve (42) can be pistons or gear wheels.
  • the system of hydraulic pump with integrated distributor valve (42) is composed essentially of two main parts; the set aggregated to the cover (1) and the set aggregated to the body (33).
  • the set of the cover (1) has as function the guiding, sealing and supporting of the setting of the system of hydraulic pump with integrated distributor valve.
  • the cover (1) is assembled:
  • the set of the body (33) has as function the inhaling of the oil of the deposit (39), carrying it internally from the pump to the distributor and sending it to the cylinder (40) or to the deposit (39).
  • the body (33) is assembled:
  • connection (36) The admission of the system of hydraulic pump with integrated distributor valve (42) is made by the connection (36).
  • the exit to the oil deposit (39) is made by the connection (37).
  • the exit to the cylinder (40) is made by the connection (38).
  • the element (39) is the oil deposit, necessary for the functioning of the whole hydraulic system.
  • the element (40) is the cylinder of the system, which is set in motion by the oil coming from the system of the hydraulic pump with integrated distributor valve (42).
  • the pneumatic control (41) is used to set in motion the valve of the hydraulic pump system with integrated distributor valve (42).
  • the hydraulic pump system with integrated distributor valve (42) is connected to the power take off (43) in order to get the rotation movement.
  • the system object of the present invention presents efficiencies of about more 10% when compared with the conventional systems.
  • the data obtained from tests consist of the measuring of the volume of oils at 1000rpm, according to the variation of the pressure.
  • a bidirectional seal can be mounted (9), inserted in the hole along the perimeter of the mentioned plates (8), that makes the sealing from the admission to the pressure.
  • the internal pressure itself helps the polymer to seal, remaining this way in its appropriate place without risk of rupture, because it has the capacity of eliminating the working vibrations.
  • the relief valve with incorporated anti return (14) is mounted at the exit of the pump, and has a relief valve of the direct circuit to the cylinder (40), protecting it against pressure peaks.
  • the anti return hinders the return of the oil to the pump.
  • the pressure points of the pneumatic part are isolated from the hydraulic pressure through connections to the oil deposit (39), for that the risk of oil passage to the pneumatic controls is null, and in general there will not be the necessity of end stroke valves, being enough a relief valve (14) for discharge of the flow rate of the pump (in not very high rotations), reducing this way the probability of occurrence of damage.
  • the user turns on the power take off, which sets in motion the hydraulic pump system with integrated distributor valve (42) through a rotation movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Regulating Braking Force (AREA)
  • Safety Valves (AREA)
  • Reciprocating Pumps (AREA)
EP08398005.2A 2007-04-24 2008-04-24 Hydraulisches Pumpensystem mit integriertem Steuerschieber Withdrawn EP1985859A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/790,152 US20080267794A1 (en) 2007-04-24 2007-04-24 Hydraulic pump system with integrated distributor valve

Publications (2)

Publication Number Publication Date
EP1985859A2 true EP1985859A2 (de) 2008-10-29
EP1985859A3 EP1985859A3 (de) 2016-09-28

Family

ID=39712494

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08398005.2A Withdrawn EP1985859A3 (de) 2007-04-24 2008-04-24 Hydraulisches Pumpensystem mit integriertem Steuerschieber

Country Status (2)

Country Link
US (1) US20080267794A1 (de)
EP (1) EP1985859A3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018158755A3 (pt) * 2017-03-03 2018-11-08 Aber Embraiagens E Comandos Hidraulicos Antonio Bernardes Lda Bomba hidráulica

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104100591B (zh) * 2013-04-01 2017-03-29 重庆航宇实业有限公司 工程汽车液压泵阀整体系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1013263A (en) 1962-09-04 1965-12-15 Borg Warner Pressure loaded rotary hydraulic pump or motor
EP0018216A1 (de) 1979-04-19 1980-10-29 Donald L. Shumate Umkehrbare(r) Zahnradpumpe oder -motor und Zwischenscheiben dafür

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1927395A (en) * 1931-11-13 1933-09-19 Leonard L Edwards Gear pump
US2391072A (en) * 1943-05-17 1945-12-18 Plessey Co Ltd Hydraulic pump
US3128710A (en) * 1960-09-19 1964-04-14 Oscar C Blomgren Gear pump
US5285871A (en) * 1992-08-17 1994-02-15 Mechanical Tool & Engineering Co. System for distributing viscous lubricant
US6729855B2 (en) * 2002-02-01 2004-05-04 S & S Cycle, Inc. Oil pump and gears
DE10324092B4 (de) * 2003-05-27 2010-07-01 Voigt, Dieter, Dipl.-Ing. Regelbare Schmierölpumpe mit einem Fördermengenregler
DE10343549B4 (de) * 2003-09-19 2006-02-09 SCHWäBISCHE HüTTENWERKE GMBH Verdrängerpumpe mit Überdruckventil
DE102004043954A1 (de) * 2004-07-01 2006-01-19 Voigt, Dieter, Dipl.-Ing. Druckspeicher-Regelölpumpe
US8092202B2 (en) * 2005-06-07 2012-01-10 Hamilton Sundstrand Corporation Propeller pump system for handed propeller applications

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1013263A (en) 1962-09-04 1965-12-15 Borg Warner Pressure loaded rotary hydraulic pump or motor
EP0018216A1 (de) 1979-04-19 1980-10-29 Donald L. Shumate Umkehrbare(r) Zahnradpumpe oder -motor und Zwischenscheiben dafür

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018158755A3 (pt) * 2017-03-03 2018-11-08 Aber Embraiagens E Comandos Hidraulicos Antonio Bernardes Lda Bomba hidráulica

Also Published As

Publication number Publication date
EP1985859A3 (de) 2016-09-28
US20080267794A1 (en) 2008-10-30

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