EP3141697A3 - Eccentric pump, in particular supply pump for aqueous urea solutions, and conveying device with an eccentric pump - Google Patents

Eccentric pump, in particular supply pump for aqueous urea solutions, and conveying device with an eccentric pump Download PDF

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Publication number
EP3141697A3
EP3141697A3 EP16001790.1A EP16001790A EP3141697A3 EP 3141697 A3 EP3141697 A3 EP 3141697A3 EP 16001790 A EP16001790 A EP 16001790A EP 3141697 A3 EP3141697 A3 EP 3141697A3
Authority
EP
European Patent Office
Prior art keywords
pump
eccentric
chamber
conveying device
aqueous urea
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Withdrawn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
EP16001790.1A
Other languages
German (de)
French (fr)
Other versions
EP3141697A2 (en
Inventor
Bernd Niethammer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3141697A2 publication Critical patent/EP3141697A2/en
Publication of EP3141697A3 publication Critical patent/EP3141697A3/en
Withdrawn legal-status Critical Current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
    • F04C2/30—Rotary-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
    • F04C2/34—Rotary-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
    • F04C2/356—Rotary-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 outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/28—Safety arrangements; Monitoring
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
    • 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
    • F04C5/00—Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable
    • 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
    • F04C2210/00—Fluid
    • F04C2210/10—Fluid working
    • F04C2210/1083—Urea

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

Die Exzenterpumpe weist eine in einem Pumpengehäuse (8) drehbar gelagerte Exzenterwelle (3) auf. Sie treibt wenigstens eine in einem Exzenterraum (7) angeordnete Förderscheibe (6) an, welche Fluid in einer Förderkammer (16) zwischen der Außenseite der Förderscheibe (6) und der Innenseite eines Außenringes (17) von einem Einlassanschluss zu einem Auslassanschluss fördert. Die Förderkammer (16) ist seitlich von einer in einem Ausgleichsraum (20) im Pumpengehäuse (8) angeordneten, elastischen Dichtscheibe (21) begrenzt, die in die Dichtstellung kraftbeaufschlagt ist. Aufgrund ihrer Elastizität kann sich die Dichtscheibe (21) bei einem entsprechend großen Druck des Fluid in der Förderkammer (16) elastisch verformen. Die Fördervorrichtung hat die Exzenterpumpe (1), die mit wenigstens einer Luftpumpe antriebsverbunden ist.

Figure imgaf001
The eccentric pump has a in a pump housing (8) rotatably mounted eccentric shaft (3). It drives at least one conveyor disc (6) arranged in an eccentric chamber (7) which conveys fluid in a delivery chamber (16) between the outside of the conveyor disc (6) and the inside of an outer ring (17) from an inlet port to an outlet port. The delivery chamber (16) is bounded laterally by an elastic sealing disc (21) arranged in a compensation chamber (20) in the pump housing (8), which is subjected to force in the sealing position. Due to their elasticity, the sealing disc (21) can elastically deform at a correspondingly high pressure of the fluid in the delivery chamber (16). The delivery device has the eccentric pump (1) which is drivingly connected to at least one air pump.
Figure imgaf001
EP16001790.1A 2015-08-21 2016-08-13 Eccentric pump, in particular supply pump for aqueous urea solutions, and conveying device with an eccentric pump Withdrawn EP3141697A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015010997.9A DE102015010997A1 (en) 2015-08-21 2015-08-21 Eccentric pump, in particular feed pump for aqueous urea solutions, and conveying device with an eccentric pump

Publications (2)

Publication Number Publication Date
EP3141697A2 EP3141697A2 (en) 2017-03-15
EP3141697A3 true EP3141697A3 (en) 2017-05-31

Family

ID=56787191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16001790.1A Withdrawn EP3141697A3 (en) 2015-08-21 2016-08-13 Eccentric pump, in particular supply pump for aqueous urea solutions, and conveying device with an eccentric pump

Country Status (2)

Country Link
EP (1) EP3141697A3 (en)
DE (1) DE102015010997A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2618423A1 (en) * 1975-05-01 1976-11-11 Nippon Piston Ring Co Ltd ROTATING LIQUID PUMP OR COMPRESSOR
EP1156221A2 (en) * 2000-05-19 2001-11-21 Robert Bosch Gmbh Gear pump
DE102011075415A1 (en) * 2011-05-06 2012-11-08 Robert Bosch Gmbh Gear pump e.g. outer gear wheel pump, for use in fuel injection system of Otto engine to convey fuel from low pressure region into high pressure region, has axially displaceable sealing plates resiliently prestressed in direction of chamber

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2751384A1 (en) * 1977-11-17 1979-05-23 Popp Hans Peter Dipl Ing Flexible, cylindrical, hollow eccentric pump impeller - is retained in chamber by bridge between inlet and outlet, bridge end being formed as round rib
DE102011076976A1 (en) 2011-06-06 2012-12-06 Continental Automotive Gmbh High pressure pump for use as diesel injection pump in motor car, has housing comprising eccentric cam space in which eccentric cam is arranged, where eccentric cam space is in fluid connection with fluid balancing area
DE102011077949A1 (en) * 2011-06-22 2012-12-27 Robert Bosch Gmbh gear pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2618423A1 (en) * 1975-05-01 1976-11-11 Nippon Piston Ring Co Ltd ROTATING LIQUID PUMP OR COMPRESSOR
EP1156221A2 (en) * 2000-05-19 2001-11-21 Robert Bosch Gmbh Gear pump
DE102011075415A1 (en) * 2011-05-06 2012-11-08 Robert Bosch Gmbh Gear pump e.g. outer gear wheel pump, for use in fuel injection system of Otto engine to convey fuel from low pressure region into high pressure region, has axially displaceable sealing plates resiliently prestressed in direction of chamber

Also Published As

Publication number Publication date
DE102015010997A1 (en) 2017-03-09
EP3141697A2 (en) 2017-03-15

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