DE102014220588B4 - transmission pump - Google Patents

transmission pump

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Publication number
DE102014220588B4
DE102014220588B4 DE102014220588.3A DE102014220588A DE102014220588B4 DE 102014220588 B4 DE102014220588 B4 DE 102014220588B4 DE 102014220588 A DE102014220588 A DE 102014220588A DE 102014220588 B4 DE102014220588 B4 DE 102014220588B4
Authority
DE
Germany
Prior art keywords
pump
ring
suction
gear
flange
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.)
Active
Application number
DE102014220588.3A
Other languages
German (de)
Other versions
DE102014220588A1 (en
Inventor
Thilo Mauser
Andreas Nützel
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.)
HANON SYSTEMS EFP DEUTSCHLAND GMBH, DE
Original Assignee
Magna Powertrain Bad Homburg 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
Priority to DE102013113254.5 priority Critical
Priority to DE102013113254 priority
Application filed by Magna Powertrain Bad Homburg GmbH filed Critical Magna Powertrain Bad Homburg GmbH
Priority to DE102014220588.3A priority patent/DE102014220588B4/en
Publication of DE102014220588A1 publication Critical patent/DE102014220588A1/en
Application granted granted Critical
Publication of DE102014220588B4 publication Critical patent/DE102014220588B4/en
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Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/30Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3441Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F04C2/3442Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10Outer members for co-operation with rotary pistons; Casings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F04C14/223Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
    • F04C14/226Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam by pivoting the cam around an eccentric axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

Gear pump, in particular vane pump, with adjustable displacement, with a flange, an outer or spacer ring and with a pressure plate, wherein within the outer ring, an adjustable cam ring is arranged, in which a rotor with radially extendable wing is disposed within rotor slots, wherein the gear pump is provided within a mounting space in a transmission housing and having a suction and a pressure port, wherein the suction port is disposed directly on the outer ring, in the region in which the adjustable cam ring has its external area acted upon by suction pressure.

Description

  • The invention relates to a gear pump, in particular vane pump, with an adjustable displacement, with a flange, an outer or spacer ring and a pressure plate, wherein disposed within the outer ring an adjustable cam ring, in which a rotor with radially extendable wing is disposed within rotor slots wherein the gear pump is received within an installation space in a transmission housing and having a suction and a pressure port.
  • Such pumps are known. In this case, such pumps have the problem that they are within a given installation space of the transmission, enclosed by the gear housing, and have a plurality of sealing points relative to the transmission housing, so that both a relatively large volume within the transmission housing for installation must be provided and also appropriate Manufacturing tolerances for the sealing surfaces between the pump and gear housing are to be observed.
  • DE3446603 A1 relates to a vane pump whose rotary piston is surrounded by a jacket which is displaceable to control in an eccentric position. The suction connection is located laterally in the housing of the pump.
  • From the DE19533686 A1 a pump is known which generates a control by pressure differentials in the working space and by turning an adjusting ring.
  • DE 10 2010 022 677 A1 shows a vane pump with a lock slider and a Synchronisiationszylinder.
  • DE 20 2014 106 121 U1 shows a further generic variable.
  • DE 10 2014 221 447 A1 shows a variable displacement pump, which is adjustable via a servomotor in the delivery volume.
  • Such pumps are thus both costly and space consuming. It is therefore an object of the invention to provide a gear pump that does not have these problems.
  • The object is achieved by a gear pump, in particular vane pump, with adjustable displacement, with a flange, an outer or spacer ring and with a pressure plate, wherein within the outer ring, an adjustable cam ring is arranged, in which a rotor with radially extendable wing within rotor slots is arranged, wherein the gear pump is provided within an installation space in a transmission housing and having a suction and a pressure connection, which is characterized in that the suction port is arranged directly on a pump component, the outer ring, in the region in which the adjustable cam ring having its exposed to suction outside area.
  • A pump according to the invention is characterized in that the corresponding suction line can be directly connected to the suction connection on the outer ring.
  • Another pump is characterized in that the suction port is arranged substantially radially with respect to the inner contour of the outer ring or the outer contour of the adjustable cam ring, so that the suction flow are introduced substantially directly without deflection losses in the suction region or the Saugniere the vane pump can, that is, the suction port and thus the suction port within the outer ring is executed directly at the position of the pump internal radial filling.
  • Another pump is characterized in that the pump with a part of its flange, its outer ring and its pressure plate directly with the outer circumferential surface of the gear housing part, a so-called intermediate plate terminates, in which the pump is received.
  • Another pump is characterized in that the outer circumferential surface of the gear housing, the outer circumferential surface of the outer ring and the outer circumferential surface of the flange and the pressure plate have substantially the same outer contour in the opening region of the transmission housing, possibly up to a projecting collar for a suction connection.
  • Another pump is characterized in that the lateral opening of the gear housing part, in which the pump is arranged, is completed by the corresponding peripheral portion of the pump outside of the pressure plate, outer ring and pump flange.
  • Another pump is characterized in that the pump is not surrounded with its entire circumference from the transmission housing.
  • Another pump is characterized in that the pump flange, the outer ring, the pressure plate have the same outer contour dimensions as the installation space within the transmission housing, so that the installation space for the pump essentially a total height in terms of the individual height dimensions Pump flange, pump outer ring and pump pressure plate, if necessary, except for recesses for fastening eyes of the flange with fixing pins.
  • Another pump is characterized in that the pump installation space in the area in which the pump outer parts are sealed with their internal seals and with a seal to the gear housing, have the same outer contour dimensions and thus the same installation space.
  • Another pump is characterized in that the pump has only an axial sealing surface in the transmission installation space on the axial support surface within the transmission housing within the transmission installation space.
  • The pump will now be described with reference to the figures.
  • 1 shows a transmission pump according to the prior art.
  • 2 shows a transmission pump according to the invention in cross section.
  • 3 shows a transmission pump according to the invention in a 3D view.
  • 4 shows a gear pump according to the invention in an open view in supervision.
  • In 1 is shown in cross section a gear pump according to the prior art. In a gearbox part 1 , which is also referred to as a centering plate, and in a transmission housing part 3 , which is also referred to as intermediate plate, a gear pump is arranged, which, inter alia, a shaft 5 , a printing plate 7 , a pump flange 9 , an outer ring 11 , a lifting ring 13 as well as seals 15 and 17 having. The lifting ring 13 is in this variable in its stroke volume gear pump, which is designed as a vane pump, adjustable within the outer ring 11 arranged as for the inventive pump below in 4 explained in more detail. The gear pump is within a stepped installation space in the intermediate plate 3 with two axial seals 15 and 17 shown opposite two axial sealing surfaces in the gear housing. Through a suction connection 19 inside the intermediate plate 3 the gear pump is connected to a suction oil area inside the gearbox or outside. It is easy to see that this gear pump due to the wall area of the intermediate plate 3 with the suction connection 19 claimed a large installation space. Furthermore, the installation space in the intermediate plate 3 stepped executed with two axial sealing surfaces on which the seals 15 and 17 abut, so that appropriate length tolerances in the production of both the installation space in the intermediate plate 3 as well as the pump items must be considered. The pump in 1 therefore has corresponding disadvantages.
  • These disadvantages are remedied by the pump according to the invention, which in 2 is shown.
  • In a so-called centering plate 20 is the pump according to the invention within a so-called intermediate plate 22 with its outer circumference of the pump constituent components, the pressure plate 26 , the outer ring 30 and the flange 28 arranged. Inside the outer ring 30 is the lifting ring 32 arranged adjustable. The suction connection 40 opens at this pump directly into an opening in the outer ring 30 , It is also clear that the seals 34 and 36 and their sealing surfaces are determined only by the dimensions within the pump and in the corresponding gear housing part, the intermediate plate 22 , only one more seal 38 an axial sealing surface must be taken into account in the manufacture of the transmission housing. The rotor of the pump itself, as in below 4 to recognize is through the wave 24 driven.
  • In 3 the pump according to the invention is shown in a three-dimensional view. In this view, it can be clearly seen that the pump according to the invention laterally in an opening of the transmission housing part, the intermediate plate 22 , is arranged. It can also be seen that the three outer circumference determining housing parts of the usable gear pump, the flange 28 , the outer ring 30 and the pressure plate 26 , in this lateral opening substantially with the outer periphery of the transmission member intermediate plate 22 finish flush and thus complete the opening of the gear housing to the outside. The suction opening opens substantially radially into the intake region of the rotation group arranged within these components 40 , The pump is top of the gearbox through the centering plate 20 locked in. To drive the pump is a sprocket shown here 42 , with a corresponding chain drive, the rotation group of the pump on the shaft 24 drives.
  • In 4 a corresponding pump according to the invention is shown in an open plan view. Inside the intermediate plate 22 Here is the gear pump with its lifting ring 32 and with the outer ring 30 , which the suction connection 40 has, so used that the outer contour of the outer ring 30 flush with the outer contour of the intermediate plate 22 concludes. This results in a very favorable installation space without additional intermediate transmission walls, as in the prior art in 1 described. The disassembled in this case and thus not visible pump flange is provided with two corresponding mounting ears, which here in the Getriebegehäuseabnehmungen 52 and 56 can be fitted, held by fixing pins in position, which in the holes 54 and 58 be recorded.
  • The outer ring 30 contains the adjustable lifting ring 32 , which is about a pivot 60 is pivotable within the outer ring. Inside the cam ring 32 is a rotor 46 arranged, which in radial slots wing 44 has and accordingly by the pivoting of the cam ring 32 From maximum delivery volume, as shown here, to minimal delivery volume accordingly through the stroke ring 32 externally acting forces can be adjusted, wherein at minimum delivery volume of the rotor 46 almost centric within the stroke ring 32 is positioned. The lifting ring 32 itself is designed with corresponding pressure surfaces designed for different pressures by appropriate seals 62 and 64 sealed. By a coil spring 48 with a spring guide 50 becomes the lifting ring 32 at standstill in the position of maximum stroke volume pressed so that the pump initially starts safely and provides a corresponding flow for adjustment. The functions of such an adjustable vane pump are otherwise sufficiently known from the prior art.
  • LIST OF REFERENCE NUMBERS
  • 1
    centering
    3
    intermediate plate
    5
    wave
    7
    printing plate
    9
    flange
    11
    outer ring
    13
    lifting ring
    15
    poetry
    17
    poetry
    19
    suction
    20
    centering
    22
    intermediate plate
    24
    wave
    26
    printing plate
    28
    flange
    30
    outer ring
    32
    lifting ring
    34
    poetry
    36
    poetry
    38
    poetry
    40
    suction
    42
    Sprocket
    44
    wing
    46
    rotor
    48
    feather
    50
    leadership
    52
    recess
    54
    drilling
    56
    recess
    58
    drilling
    60
    pivot point
    62
    poetry
    64
    poetry

Claims (10)

  1. Gear pump, in particular vane pump, with adjustable displacement, with a flange, an outer or spacer ring and with a pressure plate, wherein within the outer ring, an adjustable cam ring is arranged, in which a rotor with radially extendable wing is disposed within rotor slots, wherein the gear pump is provided within a mounting space in a transmission housing and having a suction and a pressure port, wherein the suction port is disposed directly on the outer ring, in the region in which the adjustable cam ring has its external area acted upon by suction pressure.
  2. Gear pump according to claim 1, characterized in that the corresponding suction line can be connected directly to the suction port on the outer ring / is.
  3. Pump according to claim 1 or 2, characterized in that the suction port is arranged substantially radially with respect to the inner contour of the outer ring or the outer contour of the adjustable cam ring, so that the suction flow substantially directly without deflection losses in the suction region or the suction kidney Vane pump can be initiated, so the suction port and thus the suction port within the outer ring is executed directly at the position of the pump internal radial filling.
  4. Transmission pump according to one of the preceding claims, characterized in that the pump with a part of its flange, its outer ring and its pressure plate directly with the outer circumferential surface of the gear housing part, a so-called intermediate plate terminates, in which the pump is received.
  5. Gear pump according to one of the preceding claims, characterized in that the outer circumferential surface of the gear housing, the outer circumferential surface of the outer ring and the outer circumferential surface of the flange and the pressure plate substantially in the opening region of the transmission housing have the same outer contour, possibly up to a protruding collar for the suction port.
  6. Gear pump according to one of the preceding claims, characterized in that the lateral opening of the gear housing part, in which the pump is arranged, is completed by the corresponding peripheral portion of the pump outside of the pressure plate, outer ring and pump flange.
  7. Transmission pump according to one of the preceding claims, characterized in that the pump is not surrounded with its entire circumference from the transmission housing.
  8. Gear pump according to one of the preceding claims, characterized in that the pump flange, the outer ring, the pressure plate have the same outer contour dimensions as the installation space within the transmission housing, so that the installation space for the pump substantially an entire height dimension with respect to the individual height dimensions of pump flange, pump outer ring and pump pressure plate, if necessary, except for recesses for fastening eyes of the flange with fixing pins.
  9. Gear pump according to one of the preceding claims, characterized in that the pump installation space in the region in which the pump outer parts are sealed with their internal seals and with a seal to the gear housing, have the same outer contour dimensions and thus the same installation space.
  10. Gear pump according to one of the preceding claims, characterized in that the pump within the transmission installation space only has an axial sealing surface in the transmission installation space on the axial support surface within the transmission housing.
DE102014220588.3A 2013-11-29 2014-10-10 transmission pump Active DE102014220588B4 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE102013113254.5 2013-11-29
DE102013113254 2013-11-29
DE102014220588.3A DE102014220588B4 (en) 2013-11-29 2014-10-10 transmission pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014220588.3A DE102014220588B4 (en) 2013-11-29 2014-10-10 transmission pump

Publications (2)

Publication Number Publication Date
DE102014220588A1 DE102014220588A1 (en) 2015-06-03
DE102014220588B4 true DE102014220588B4 (en) 2016-11-10

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ID=53058632

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102014220588.3A Active DE102014220588B4 (en) 2013-11-29 2014-10-10 transmission pump

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Country Link
DE (1) DE102014220588B4 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014106121U1 (en) 2014-12-17 2015-01-15 Schwäbische Hüttenwerke Automotive GmbH Rotary pump with compact positioning structure for adjusting the delivery volume

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3446603A1 (en) * 1983-12-23 1985-07-11 Atos Oleodinamica Spa Adjustable lobed positive displacement pump for hydraulic drives
DE19533686A1 (en) * 1995-09-12 1997-03-13 Daimler Benz Ag Adjustable vane pump as a lubricant pump
DE102010022677A1 (en) * 2010-06-04 2011-12-08 Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt Vane pump
DE202014106121U1 (en) * 2014-12-17 2015-01-15 Schwäbische Hüttenwerke Automotive GmbH Rotary pump with compact positioning structure for adjusting the delivery volume
DE102014221447A1 (en) * 2014-10-22 2016-04-28 Zf Friedrichshafen Ag variable

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3446603A1 (en) * 1983-12-23 1985-07-11 Atos Oleodinamica Spa Adjustable lobed positive displacement pump for hydraulic drives
DE19533686A1 (en) * 1995-09-12 1997-03-13 Daimler Benz Ag Adjustable vane pump as a lubricant pump
DE102010022677A1 (en) * 2010-06-04 2011-12-08 Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt Vane pump
DE102014221447A1 (en) * 2014-10-22 2016-04-28 Zf Friedrichshafen Ag variable
DE202014106121U1 (en) * 2014-12-17 2015-01-15 Schwäbische Hüttenwerke Automotive GmbH Rotary pump with compact positioning structure for adjusting the delivery volume

Also Published As

Publication number Publication date
DE102014220588A1 (en) 2015-06-03

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