EP0159968A2 - Pompe pneumatique à palettes avec carter en tôle métallique estampée - Google Patents

Pompe pneumatique à palettes avec carter en tôle métallique estampée Download PDF

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Publication number
EP0159968A2
EP0159968A2 EP85830096A EP85830096A EP0159968A2 EP 0159968 A2 EP0159968 A2 EP 0159968A2 EP 85830096 A EP85830096 A EP 85830096A EP 85830096 A EP85830096 A EP 85830096A EP 0159968 A2 EP0159968 A2 EP 0159968A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
vane pump
support
pump according
pneumatic vane
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Withdrawn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
EP85830096A
Other languages
German (de)
English (en)
Other versions
EP0159968A3 (fr
Inventor
Ettore Cordiano
Pierino Garnero
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.)
GARRIG 4 SS
Corint SRL
Original Assignee
GARRIG 4 SS
Corint SRL
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 claimed from IT5330484U external-priority patent/IT8453304V0/it
Priority claimed from IT5417884U external-priority patent/IT8454178V0/it
Application filed by GARRIG 4 SS, Corint SRL filed Critical GARRIG 4 SS
Publication of EP0159968A2 publication Critical patent/EP0159968A2/fr
Publication of EP0159968A3 publication Critical patent/EP0159968A3/fr
Withdrawn legal-status Critical Current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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 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
    • F04C18/3442—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 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 inlet and outlet opening
    • 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
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods

Definitions

  • the present invention relates to a pneumatic vane pump of the type comprising:
  • Pumps of this type are commonly used on diesel engines for motor vehicles to create the low pressure needed to work vacuum-operated users including, for example, the servobrakes.
  • such pumps have a cast outer casing closed by a cover which may also be cast or formed from sheet metal of sufficient thickness.
  • the object of the present invention is to find a type of construction which simplifies the working with less complicated equipment, shorter times, and lower overall costs.
  • the outer casing of the pump is constituted by (a) a cylinder of drawn sheet metal closed at one end by a base formed directly by the drawing of the cylinder itself, and (b) a support fixed to the motor and carrying the seat for rotation of the spindle of the rotor, a main flange which closes the cylinder and against which an end face of the rotor slides, the outlet ducts and openings for the air and the lubricating oil for the pump, and a second flange against which the stamped sheet metal cylinder bears and to which it is fixed.
  • the outer casing of the pump is constituted by a support 1 and a cylinder 2 having a base 3.
  • the support 1 carries a seat 4 for rotation of the spindle 5 of the rotor 6, as well as outlet ducts 7 and 8 for the air and lubricating oil.
  • the cylinder is fixed to the support by screws 9 and a rubber ring 10 ensures sealing from the exterior.
  • the vanes 11 are housed in grooves 12 in the rotor and slide against the iner surface 13 of the cylinder 2, against the flange 14 of the support and against the inner face 15 of the base 3. As shown in Figure 1, the air inlet slot 16 and union 17 are formed in the base 3.
  • Figure 2 illustrates another arrangement of the air inlet opening and union, in which the support 1 includes an air inlet duct 16a and a seat 17a for an air inlet union 28.
  • the union 28 incorporates a non-return valve constituted by a sleeve 29, preferably of plastics material, having an outer end 30 for attachment of the air inlet pipes and an inner portion 31 provided at its end with an apertured flange on which a rubber washer 32 bears.
  • the washer 32 urged by the pressure difference existing between its two faces, prevents air from returning towards the inlet when the pressure of the air drawn in is less than that of the air in the pump.
  • Figure 3 shows just such a rotor with five vanes.
  • Figure 5 illustrates a device which may be used to simplify the formation of the vanes and improve the delivery of the pump.
  • the drawing of the cylinder 2 in fact usually requires a radius R at the junction between the base 3 and the cylindrical wall 2, the value of which must not fall below a certain limit, generally equal to the thickness of the sheet metal.
  • the vanes 11 must be rounded with the same or a slightly greater radius at their corners which slide against the junction.
  • the vane 11 On the opposite side, however, where there is no junction between the flange 14 of the support and the wall 2 of the cylinder, the vane 11 must have a sharp corner.
  • the rotor 6 may be constructed from plastics material with a suitable choice of the material and the incorporation of the spindle 5 during moulding.
  • the working of the latter which does not require precise tolerances in the portion of coupling with the rotor, is simplified.
  • the fixing of the cylinder 2 onto the support 1 may be effected in the conventional manner shown in Figures 1 and 3, that is, by clamping the flange 19 of the cylinder 2 to the support 1 by screws 9 or other simpler means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
EP85830096A 1984-04-24 1985-04-22 Pompe pneumatique à palettes avec carter en tôle métallique estampée Withdrawn EP0159968A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT5330484U 1984-04-24
IT5330484U IT8453304V0 (it) 1984-04-24 1984-04-24 Pompa pneumatica a palette con corpo in lamiera stampata
IT5417884U 1984-12-17
IT5417884U IT8454178V0 (it) 1984-12-17 1984-12-17 Pompa pneumatica a palette con corpo in lamiera stampata

Publications (2)

Publication Number Publication Date
EP0159968A2 true EP0159968A2 (fr) 1985-10-30
EP0159968A3 EP0159968A3 (fr) 1987-05-13

Family

ID=26329561

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85830096A Withdrawn EP0159968A3 (fr) 1984-04-24 1985-04-22 Pompe pneumatique à palettes avec carter en tôle métallique estampée

Country Status (1)

Country Link
EP (1) EP0159968A3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644317A1 (fr) * 1993-09-16 1995-03-22 SIHI GmbH & Co KG Pompe à anneau liquide
US5509789A (en) * 1993-09-16 1996-04-23 Sihi Gmbh & Co Kg Liquid ring pump having a sheet metal working chamber casing
BE1014509A3 (fr) * 2001-04-09 2003-11-04 Scroll Tech Ecran thermique avec joint hermetique entre coiffe d'extremite et volute non orbitale.
WO2007054055A1 (fr) * 2005-11-09 2007-05-18 Ixetic Hückeswagen Gmbh Pompe, en particulier pompe a vide a palettes coulissantes
WO2009115355A2 (fr) * 2008-03-17 2009-09-24 Robert Bosch Gmbh Pompe à carburant
WO2012095245A3 (fr) * 2011-01-11 2013-06-27 Magna Powertrain Ag & Co Kg Pompe
CN105257543A (zh) * 2014-07-08 2016-01-20 悦马塑料技术有限公司 用于产生真空的叶片泵

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118446A5 (fr) * 1970-12-17 1972-07-28 Trw Inc
FR2245220A7 (en) * 1973-09-25 1975-04-18 Corona & Co Spa Petrol pump with cooled motor - liquid circulates between pump and motor chambers
US3927956A (en) * 1974-05-30 1975-12-23 Carrier Corp Fluid actuated motor
US4408969A (en) * 1980-05-31 1983-10-11 Diesel Kiki Co., Ltd. Vane compressor having improved rotor supporting means

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118446A5 (fr) * 1970-12-17 1972-07-28 Trw Inc
FR2245220A7 (en) * 1973-09-25 1975-04-18 Corona & Co Spa Petrol pump with cooled motor - liquid circulates between pump and motor chambers
US3927956A (en) * 1974-05-30 1975-12-23 Carrier Corp Fluid actuated motor
US4408969A (en) * 1980-05-31 1983-10-11 Diesel Kiki Co., Ltd. Vane compressor having improved rotor supporting means

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644317A1 (fr) * 1993-09-16 1995-03-22 SIHI GmbH & Co KG Pompe à anneau liquide
US5509789A (en) * 1993-09-16 1996-04-23 Sihi Gmbh & Co Kg Liquid ring pump having a sheet metal working chamber casing
AU673761B2 (en) * 1993-09-16 1996-11-21 Sihi Gmbh & Co Kg Liquid ring gas pump
CN1035837C (zh) * 1993-09-16 1997-09-10 西西股份有限公司 液体环式气泵
BE1014509A3 (fr) * 2001-04-09 2003-11-04 Scroll Tech Ecran thermique avec joint hermetique entre coiffe d'extremite et volute non orbitale.
WO2007054055A1 (fr) * 2005-11-09 2007-05-18 Ixetic Hückeswagen Gmbh Pompe, en particulier pompe a vide a palettes coulissantes
WO2009115355A2 (fr) * 2008-03-17 2009-09-24 Robert Bosch Gmbh Pompe à carburant
WO2009115355A3 (fr) * 2008-03-17 2009-11-19 Robert Bosch Gmbh Pompe à carburant
WO2012095245A3 (fr) * 2011-01-11 2013-06-27 Magna Powertrain Ag & Co Kg Pompe
CN105257543A (zh) * 2014-07-08 2016-01-20 悦马塑料技术有限公司 用于产生真空的叶片泵

Also Published As

Publication number Publication date
EP0159968A3 (fr) 1987-05-13

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Inventor name: CORDIANO, ETTORE

Inventor name: GARNERO, PIERINO