NO120772B - - Google Patents

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Publication number
NO120772B
NO120772B NO169726A NO16972667A NO120772B NO 120772 B NO120772 B NO 120772B NO 169726 A NO169726 A NO 169726A NO 16972667 A NO16972667 A NO 16972667A NO 120772 B NO120772 B NO 120772B
Authority
NO
Norway
Prior art keywords
pump
housing
chamber
end part
annular flange
Prior art date
Application number
NO169726A
Other languages
Norwegian (no)
Inventor
L Connelly
Original Assignee
Hobourn Eaton Mfg Co Ltd
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 Hobourn Eaton Mfg Co Ltd filed Critical Hobourn Eaton Mfg Co Ltd
Publication of NO120772B publication Critical patent/NO120772B/no

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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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • 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
    • F04C2/344—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 inner member
    • F04C2/3441—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 inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F04C2/3445—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 inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the vanes having the form of rollers, slippers or the like
    • 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
    • F04C2/344—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 inner member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/91—O-ring seal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Description

Rotasjonspumpe.Rotary pump.

Foreliggende oppfinnelse angår rotasjonspumper somThe present invention relates to rotary pumps which

skal pumpe væske fra et innløp til et utløp og omfatter et hus hvori det er lagret en pumperotor og hvorpå det sitter to endedeler ved motstående ender av pumperotoren, mens en aksel er forbundet med pumpens drivanordning og stikker inn i huset som sammen med en av endedelene begrenser et kammer, inneholdende væske ved pumpens ut-løpstrykk, der en del av.huset som begrenser kammeret, har en aksialt rettet ringformet flens som danner en radiell tetning rundt aksel- is to pump liquid from an inlet to an outlet and comprises a housing in which a pump rotor is stored and on which two end parts sit at opposite ends of the pump rotor, while a shaft is connected to the pump's drive device and protrudes into the housing which together with one of the end parts confines a chamber, containing liquid at the pump's outlet pressure, where a part of the housing which confines the chamber has an axially directed annular flange which forms a radial seal around the shaft

ens akae sammen med den radielt sett ytre flate av en del av den nevnte endedel. even together with the radially outer surface of a part of said end part.

Et problem med pumper av denne art er tetningen mellom pumpehus og endedeler, og ved foreliggende oppfinnelse er man kommet frem'til en meget hensiktsmessig løsning på dette problem, idet trykket av væsken som befinner seg i pumpen utnyttes til å frembringe den nødvendige .anleggskraf t som vil bringe husets aksialt rettede flens i tettende anlegg mot et parti av endedelen. A problem with pumps of this kind is the seal between the pump housing and end parts, and with the present invention a very appropriate solution to this problem has been arrived at, as the pressure of the liquid in the pump is utilized to produce the necessary plant power. which will bring the housing's axially aligned flange into sealing contact with a part of the end part.

Ved denne utførelse er det spesielt fordelaktig å frem-stille huset med den ringformede flens av metallblikk både av økono-miske og tekniske årsaker. In this embodiment, it is particularly advantageous to produce the housing with the ring-shaped flange of sheet metal for both economic and technical reasons.

I det følgende skal oppfinnelsen beskrives nærmereIn what follows, the invention will be described in more detail

under henvisning til tegningen der:with reference to the drawing where:

Fig. 1 er et lengderiss, delvis i snitt, av pumpen i henhold til oppfinnelsen, Fig. 1 is a longitudinal view, partly in section, of the pump according to the invention,

fig. 2 er et tverrsnitt tatt etter linjen 2-2 på fig.fig. 2 is a cross-section taken along the line 2-2 in fig.

1 og fig. 3 er et forstørret utsnitt av en del av fig. 1. 1 and fig. 3 is an enlarged section of a part of fig. 1.

Den viste pumpe .10 er tilpasset for å benyttes i forbindelse med et hydraulisk styresystem i et motordrevet kjøretøy og til å bli drevet av en motor i kjøretøyet, men det skal dog gjøres opp-merksom på at pumpen også kan benyttes for andre formål. The shown pump .10 is adapted to be used in connection with a hydraulic control system in a motor-driven vehicle and to be driven by an engine in the vehicle, but it should be noted that the pump can also be used for other purposes.

Pumpen 10 omfatter et hus 11 som er laget av metallplate fremstillet ved dyptrekking, og som huser en pumpeanordning 12. Pumpeanordningen 12 omfatter en rotor 14 som er festet til en driv-aksel 13j og en stasjonær kaminnretning 15 som er festet til huset 11. Rotoren 14 har et antall radielle spor som bærer pumpeelementer 16 som ligger an mot en flate 20 på kaminnretningen 15 for utformning av pumpelommer, og som av kantflaten beveges radielt innover og utover i forhold til rotoren 14 når denne roteres av akselen 13. Kamflaten 20 på kaminnretningen 15 kan være slik utformet at den tilveiebringer et antall pumpeslag av pumpeelementene 16 under hver omdreining av rotoren 14. Pumpeanordningen 12 er opplagret i huset 11 mellom endedeler 25, 35- Endedelene 25 er forsynt med innløps- og utløpspassasjer 26, 27 som står i forbindelse med henholdsvis innløps- og utløpsporter i pumpeanordningen 12. Innløpspassasjeh 26 står i forbindelse med et fluidreservoar 30, mens utløpspassasjen 27 står i forbindelse med en utløpskopling 31. Akselen 13 er roterbart opplagret i lagre 32, 44 som er festet på hver sin av Vindedelene 25, 35. The pump 10 comprises a housing 11 which is made of sheet metal produced by deep drawing, and which houses a pump device 12. The pump device 12 comprises a rotor 14 which is attached to a drive shaft 13j and a stationary cam device 15 which is attached to the housing 11. The rotor 14 has a number of radial grooves that carry pump elements 16 which rest against a surface 20 on the cam device 15 for forming pump pockets, and which are moved radially inwards and outwards by the edge surface in relation to the rotor 14 when this is rotated by the shaft 13. The cam surface 20 on the cam device 15 can be designed in such a way that it provides a number of pump strokes of the pump elements 16 during each revolution of the rotor 14. The pump device 12 is stored in the housing 11 between end parts 25, 35 - The end parts 25 are provided with inlet and outlet passages 26, 27 which are connected with respective inlet and outlet ports in the pump device 12. Inlet passage 26 is connected to a fluid reservoir 30, while outlet passage 27 is for connection with an outlet coupling 31. The shaft 13 is rotatably supported in bearings 32, 44 which are attached to each of the Wind parts 25, 35.

Endedelene 35 er festet i huset ved hjelp av skruer 36 som strekker seg gjennom kaminnretningen 15 og som er skrudd inn i endedelen 25. Skruene 36 holder endedelen 35 i umiddelbar nærhet av pumpeanordningen 12. Endedelene 25, 35 holdes dessuten i flukt med pumpeanordningen 12 ved hjelp av en styretapp 40 som strekker seg gjennom endedelen 35, kaminnretningen 15 og inn i endedelen 35» The end parts 35 are fixed in the housing by means of screws 36 which extend through the comb device 15 and which are screwed into the end part 25. The screws 36 hold the end part 35 in close proximity to the pump device 12. The end parts 25, 35 are also held flush with the pump device 12 by by means of a guide pin 40 which extends through the end part 35, the stove device 15 and into the end part 35"

Endedelen 35 omfatter en del 43 som er tett forbundetThe end part 35 comprises a part 43 which is tightly connected

med huset 11 ved hjelp av en tetningsring 46 som er anbrakt mellom delen 43 og en flens 47 på huset 11. Langs den indre omkrets av delen 43 og endedelen 35 er det anbrakt en tetning 50 som forhindrer lek-kasje langs akselen 13. Endedelen 35 omfatter en flens 51 som har en plan, ringformet flate som er anbrakt nær pumpeanordningen 12, with the housing 11 by means of a sealing ring 46 which is placed between the part 43 and a flange 47 on the housing 11. Along the inner circumference of the part 43 and the end part 35, a seal 50 is placed which prevents leakage along the shaft 13. The end part 35 comprises a flange 51 which has a planar, ring-shaped surface which is placed close to the pump device 12,

slik som tidligere nevnt. Den plane flate 52 er utformet med velegnede spor som tilveiebringer et innløp til et utløp fra pumpeanordningen 12. Flensen 51 har en port 53 som står i forbindelse med et fluidkammer as previously mentioned. The planar surface 52 is designed with suitable grooves which provide an inlet to an outlet from the pump device 12. The flange 51 has a port 53 which is in communication with a fluid chamber

54 som er avgrenset av endedelen 35 og huset 11.54 which is delimited by the end part 35 and the housing 11.

Kammeret 54 fylles med fluidum gjennom porten 53, ogThe chamber 54 is filled with fluid through the port 53, and

trykket av fluidumet i kammeret 54 tvinger flensen 47 i tett forbindelse med tetningsringen 46 og delen 43 pa endedelen 35. Trykket i kammeret 54 virker dessuten på flaten 60 på flensen 51, slik at endedelen 35 tvinges mot pumpeanordningen 12. Dette trykket motsetter seg således det trykket som virker på endedelen fra fluidumet i pumpe-lommene. Dette virker til å balansere endedelen 35 og redusere bøyning av denne. Dessuten oppnås det på grunn av sammenpresningen av flensene 47 mot tetningen 46 og delene 43 en meget tett forbindelse mellom flensen 47 og delen 43- the pressure of the fluid in the chamber 54 forces the flange 47 into tight connection with the sealing ring 46 and the part 43 on the end part 35. The pressure in the chamber 54 also acts on the surface 60 of the flange 51, so that the end part 35 is forced against the pump device 12. This pressure thus opposes the the pressure acting on the end part from the fluid in the pump pockets. This acts to balance the end part 35 and reduce its bending. Furthermore, due to the compression of the flanges 47 against the seal 46 and the parts 43, a very tight connection is achieved between the flange 47 and the part 43-

Fluidumet fra pumpeanordningen 12 strømmer gjennom portenThe fluid from the pump device 12 flows through the port

53 og en åpning 57 som strekker seg gjennom kaminnretningen 15>til utløpskammeret 27 ved endedelen. 25. Det fremgår at åpningen 57 er i stand til å øke fluidstrømningen fra pumpeanordningen 12 til utløpskammeret 27 med en minimal strømningsmotstand. Åpningen 57 gjør det mulig at fluidum kan strømme gjennom denne til kammeret 27, med mindre motstand og mindre trykkdifferensial enn hva som ville vært tilfelle hvis en slik åpning ikke var tilveiebrakt. For et bestemt tilført dreiemoment til pumpen, vil den være i stand til å pumpe en større mengde fluidum enn hva som ville vært tilfellet hvis åpningen 57 ikke var tilstede. 53 and an opening 57 which extends through the stove device 15> to the outlet chamber 27 at the end part. 25. It appears that the opening 57 is capable of increasing the fluid flow from the pump device 12 to the outlet chamber 27 with minimal flow resistance. The opening 57 enables fluid to flow through this to the chamber 27, with less resistance and less pressure differential than would be the case if such an opening were not provided. For a given torque applied to the pump, it will be able to pump a greater amount of fluid than would be the case if orifice 57 were not present.

Claims (2)

1. Rotasjonspumpe beregnet på å pumpe væske fra et innløp til et utløp og omfattende et hus hvori det er lagret en pumperotor og hvorpå det sitter to endedeler ved motstående ender av pumperotoren, mens en aksel er forbundet med pumpens drivanordning og stikker inn i huset som, sammen med en av endedelene, begrenser et kammer inneholdende væske ved pumpens utløpstrykk, der en del av huset som begrenser kammeret har en aksialt rettet ringformet flens som danner en radiell tetning rundt akselens akse, sammen med den radielt sett ytre flate av en del av den nevnte ene endedel, karakterisert ved at den ringformede flens (47) er innrettet til å bli avbøyet ettergivende radielt av trykket i kammeret (54) for å komme i tettende anlegg mot den nevnte del av den ene endedel (35).1. Rotary pump designed to pump liquid from an inlet to an outlet and comprising a housing in which a pump rotor is stored and on which two end parts sit at opposite ends of the pump rotor, while a shaft is connected to the pump's drive device and protrudes into the housing as , together with one of the end members, confines a chamber containing fluid at the pump discharge pressure, wherein a portion of the housing that confines the chamber has an axially directed annular flange forming a radial seal about the axis of the shaft, together with the radially outer surface of a portion of the said one end part, characterized in that the annular flange (47) is arranged to be deflected compliantly radially by the pressure in the chamber (54) to come into sealing contact with the said part of the one end part (35). 2. Pumpe som angitt i krav 1, karakterisert v e d at huset (11) med den ringformede flens er utført av metallblikk.2. Pump as specified in claim 1, characterized in that the housing (11) with the annular flange is made of sheet metal.
NO169726A 1966-09-16 1967-09-14 NO120772B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US579976A US3404634A (en) 1966-09-16 1966-09-16 Pump

Publications (1)

Publication Number Publication Date
NO120772B true NO120772B (en) 1970-11-30

Family

ID=24319130

Family Applications (1)

Application Number Title Priority Date Filing Date
NO169726A NO120772B (en) 1966-09-16 1967-09-14

Country Status (8)

Country Link
US (1) US3404634A (en)
CH (1) CH469196A (en)
DE (1) DE1653846A1 (en)
DK (1) DK123371B (en)
ES (1) ES345455A1 (en)
GB (1) GB1182966A (en)
NO (1) NO120772B (en)
SE (1) SE330834B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479962A (en) * 1967-11-22 1969-11-25 Sperry Rand Corp Power transmission
US3491699A (en) * 1968-02-26 1970-01-27 Sperry Rand Corp Power transmission
US3711225A (en) * 1971-08-26 1973-01-16 Gen Motors Corp Epitrochoidal compressor
US3801239A (en) * 1972-04-03 1974-04-02 Eaton Corp Controller for fluid operated device
US4251190A (en) * 1979-02-08 1981-02-17 General Signal Corporation Water ring rotary air compressor
JPS58162794A (en) * 1982-03-23 1983-09-27 Diesel Kiki Co Ltd Vane compressor
JPS59181292U (en) * 1983-04-25 1984-12-03 株式会社ボッシュオートモーティブ　システム vane compressor
US4536133A (en) * 1984-03-22 1985-08-20 Zahnradfabrik Friedrichshafen, Ag. Regulatable vane pump
EP1182350A2 (en) * 2000-08-25 2002-02-27 Van Doorne's Transmissie B.V. Roller vane pump incorporating a bearing bush

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253548A (en) * 1958-09-19 1966-05-31 Gen Motors Corp Pump
US3170408A (en) * 1960-01-20 1965-02-23 Waterous Co Rotary pumps
US3204566A (en) * 1962-06-11 1965-09-07 Feroy Arne Vane type hydraulic mechanism with balanced stator walls
US3236566A (en) * 1963-03-20 1966-02-22 Chrysler Corp Hydraulic pump
US3273503A (en) * 1963-12-26 1966-09-20 Trw Inc Stack up slipper pump and compact valve assembly
DE1553282C3 (en) * 1963-07-05 1975-05-22 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Rotary piston machine, in particular rotary piston pump
US3280754A (en) * 1964-02-12 1966-10-25 New York Air Brake Co Engine
US3327636A (en) * 1965-04-30 1967-06-27 Ashtabula Bow Socket Company Fluid pump or motor structure

Also Published As

Publication number Publication date
SE330834B (en) 1970-11-30
DK123371B (en) 1972-06-12
US3404634A (en) 1968-10-08
DE1653846A1 (en) 1971-06-09
GB1182966A (en) 1970-03-04
ES345455A1 (en) 1969-01-01
CH469196A (en) 1969-02-28

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