US3175506A - Rotating vane type pump - Google Patents

Rotating vane type pump Download PDF

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US3175506A
US3175506A US141087A US14108761A US3175506A US 3175506 A US3175506 A US 3175506A US 141087 A US141087 A US 141087A US 14108761 A US14108761 A US 14108761A US 3175506 A US3175506 A US 3175506A
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discs
ring
pump
cam ring
casing
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US141087A
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Erdmann Hans
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    • 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
    • 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
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
    • F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C2/00—Rotary-piston engines
    • F03C2/30—Rotary-piston engines having the characteristics covered by two or more of groups F03C2/02, F03C2/08, F03C2/22, F03C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • 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

Definitions

  • the faultless function and the great efficiency of a vane type pump depend on the accurate manufacture and free cooperation of the elements thereof.
  • the pump chamber has to be accurately shaped and accurately positioned with respect tothe bearings for the impeller shaft. In the present type of pump construction, this requires fine machining with a relatively high cost of production.
  • the primary object of this invention is to provide a vane type pump wherein very little accurate machining is required in the casing, the parts of the pump requiring accurate machining and alignment being so constructed whereby they may be assembled as a unit exteriorly 0f the housing and held in the housing by means of suitable bolts wherein machining costs for the pump are greatly reduced as compared to conventional vane type pump construction.
  • Another object of this invention is to provide a vane type pump wherein a one-piece housing is provided with the housing having formed therein the usual flow passages required in a vane type pump, and the housing having one end open and the other end closed, and there being insertable through and removable through the open end of the housing a block assembly which defines the pumping chambers and which carries the bearings for the pump shaft, as well as the vane type impeller.
  • Another object of this invention is to provide a novel vane type pump wherein a block assembly is provided for defining the pumping chambers and for supporting the impeller shaft, the block assembly including a cam ring having the pump chamber formed therein, and a pair of steering discs having the impeller shaft bearings mounted therein, and the discs, ring and impeller being assembled as a unit by means of an alignment ring telescoped over the cam ring and projecting therebeyond and receiving adjacent ends of the bearing carrying discs to effect the required alignment of the three discs and cam ring.
  • a further object of this invention is to provide a novel vane type pump which includes a one-piece housing or casing which has the usual flow passages formed therein and which is provided with one open end and the opposite end closed, and the impeller and impeller shaft being carried by a block assembly as a unit with the block assembly being held together and in the casing by means of bolts, and the block assembly being sealed with respect to the casing to prevent the undesired flow of fluid.
  • the single figure of the drawing is a sectional view taken through the center of the pump and shows the specific details of construction thereof.
  • the vane type pump includes a casing 1 which, as is clearly evident from the drawing, is of a one-piece construction and is provided with an open end.
  • the casing is also Patented Mar. 30, 1965 provided with suitable fluid passages therein as required in a conventional type of vane type pump.
  • the block assembly is held in alignment by means of a centering ring 10 which is telescoped about the cam ring 5 and projects on opposite sides thereof.
  • the centering ring 10 receives the opposed ends of the internal control block 3 and the external steering discs 4 to hold the discs and ring 3, 4 and 5 in alignment.
  • the internal steering discs 3 carry a bearing 12 While the external steering discs 4 carry a bearing 11.
  • the bearings 11 and 12 are in alignment and receive therein shaft portions 14 and 13, respectively, of the impeller shaft. Due to the fact that the discs and ring 3, 4 and 5 are held in alignment, it will be readily apparent that the impeller shaft is suitably rotatably journaled in the block assembly and that the impeller 2 is suitably mounted within the pump chamber to produce the desired pumping action.
  • the discs and ring 3, 4 and 5 have impressed therein the centering ring 10 so that the necessary alignment is assured.
  • the casing 1 is provided with the opening 16 which is of a size to snugly receive the external steering disc 4.
  • the block assembly is held within the casing 1 by means of a plurality of circumferentially spaced bolts 17 which pass through the blocks 3, 4 and 5 and serve to clamp the block assembly in the casing 1.
  • the inner end of the internal steering disc 3 is provided with a suitable compressible gasket 9 and the outer portion of the external steering disc 4 is provided with a peripheral sealing ring or gasket 8.
  • the gasket 9 is compressed between the opposing portions of the casing 1 and the internal steering disc 3.
  • the compressing of the gasket 9 is limited by engagement of the internal steering disc 3 with a wall 15 of the casing 1.
  • the openings 16 have a tapered outer portion so that the gasket 8 is gradually compressed and serves to compressively engage and seal the wall of the opening 16 against escape of fluid around the external steering disc 4.
  • the gasket 9 serves to prevent the passage of fluid under pressure out of the pressure chamber 18 of the pump into the bearing 12. This is obvious from the drawmg.
  • the casing 1 requires very litlle machining, and that the components of the pump which require machining are readily accessible so that the machining may take place in a manner which is relatively inexpensive. Further, since the important components of the pump which must be aligned are connected together in a manner wherein they may be assembled externally of the casing, it will be apparent that the problem of alignment of the pump components is solved by the formation of the block assembly carrying the impeller and the impeller shaft. In addition, the movable components of the pump may be readily removed from the casing for the necessary inspection and repairs.
  • a vane-type pump comprising a pot-like casing with inlet and outlet ports, an internal and an external steering disc, a cam ring disposed therebetween, a shaft rotatably journaled in said steering discs and extending beyond said external disc, a vane-type rotor fixedly secured to said shaft and rotatably journaled in said cam ring, a single means to both connect and center said discs and said ring with respect to each other thus forming an integral unlit independently mountable, said unit being received by 'said case; bolt means to fasten and sealing means to seal said' unit in said case, a suction chamber and a pressure chamber being defined'between said case and saidunit, said inlet port communicating through said suction chamber with the interior of said cam ring and said outlet port communicating through said pressure chamber with the interior of said cam ring, and wherein said discs and said ring are defined by cylindrical outer surfaces, said surfaces all having the same outer diameter and wherein said means to both connect and center said discs and said ring with respect to
  • said block assembly includes an outer circumferential sealing ring engaging said casing open end and sealing said casing against the escape of fluid from said suction chamber, and an inner sealing'ri-ng on said block assembly engaging said casing opposite end and sealing said blockassembly against the inflow of fluid pressurized by said vane in said pressure chamber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rotary Pumps (AREA)

Description

March 30, 1965 H. ERDMANN 3,175,506
ROTATING VANE TYPE PUMP Filed Sept. 27. 1961 INVENTOR H ANS EZDMANN BY fi m, r2441? ATTORNEY 5 United States Patent 3,175,506 ROTATING VANE TYPE PUMP Hans Erdmann, Lindenstrasse 42, Frankfurt am Main, Germany Filed Sept. 27, 1961, Ser. No. 141,087 Claims priority, application Germany, Oct. 6, 1960, T 19,089 3 Claims. (Cl. 103-136) This invention relates in general to new and useful improvements in pump construction, and more particularly relates to a novel vane type pump.
The faultless function and the great efficiency of a vane type pump depend on the accurate manufacture and free cooperation of the elements thereof. The pump chamber has to be accurately shaped and accurately positioned with respect tothe bearings for the impeller shaft. In the present type of pump construction, this requires fine machining with a relatively high cost of production.
The primary object of this invention is to provide a vane type pump wherein very little accurate machining is required in the casing, the parts of the pump requiring accurate machining and alignment being so constructed whereby they may be assembled as a unit exteriorly 0f the housing and held in the housing by means of suitable bolts wherein machining costs for the pump are greatly reduced as compared to conventional vane type pump construction.
Another object of this invention is to provide a vane type pump wherein a one-piece housing is provided with the housing having formed therein the usual flow passages required in a vane type pump, and the housing having one end open and the other end closed, and there being insertable through and removable through the open end of the housing a block assembly which defines the pumping chambers and which carries the bearings for the pump shaft, as well as the vane type impeller.
Another object of this invention is to provide a novel vane type pump wherein a block assembly is provided for defining the pumping chambers and for supporting the impeller shaft, the block assembly including a cam ring having the pump chamber formed therein, and a pair of steering discs having the impeller shaft bearings mounted therein, and the discs, ring and impeller being assembled as a unit by means of an alignment ring telescoped over the cam ring and projecting therebeyond and receiving adjacent ends of the bearing carrying discs to effect the required alignment of the three discs and cam ring.
A further object of this invention is to provide a novel vane type pump which includes a one-piece housing or casing which has the usual flow passages formed therein and which is provided with one open end and the opposite end closed, and the impeller and impeller shaft being carried by a block assembly as a unit with the block assembly being held together and in the casing by means of bolts, and the block assembly being sealed with respect to the casing to prevent the undesired flow of fluid.
With the above and other objects in view that will hereinafter appear, the nature of the invention will be more clearly understood by reference to the following detailed description, the appended claims and the accompanying drawing.
In the drawing:
The single figure of the drawing is a sectional view taken through the center of the pump and shows the specific details of construction thereof.
Referring now to the drawing in detail, it will be seen that there is illustrated the components of a vane type pump formed in accordance with this invention. The vane type pump includes a casing 1 which, as is clearly evident from the drawing, is of a one-piece construction and is provided with an open end. The casing is also Patented Mar. 30, 1965 provided with suitable fluid passages therein as required in a conventional type of vane type pump.
It is to be understood that the rotor impeller 2 and the shape of the pumping chambers are of the conventional type, and therefore need not be described in detail here.
The block assembly is held in alignment by means of a centering ring 10 which is telescoped about the cam ring 5 and projects on opposite sides thereof. The centering ring 10 receives the opposed ends of the internal control block 3 and the external steering discs 4 to hold the discs and ring 3, 4 and 5 in alignment.
The internal steering discs 3 carry a bearing 12 While the external steering discs 4 carry a bearing 11. The bearings 11 and 12 are in alignment and receive therein shaft portions 14 and 13, respectively, of the impeller shaft. Due to the fact that the discs and ring 3, 4 and 5 are held in alignment, it will be readily apparent that the impeller shaft is suitably rotatably journaled in the block assembly and that the impeller 2 is suitably mounted within the pump chamber to produce the desired pumping action. The discs and ring 3, 4 and 5 have impressed therein the centering ring 10 so that the necessary alignment is assured.
The casing 1 is provided with the opening 16 which is of a size to snugly receive the external steering disc 4. The block assembly is held within the casing 1 by means of a plurality of circumferentially spaced bolts 17 which pass through the blocks 3, 4 and 5 and serve to clamp the block assembly in the casing 1.
The inner end of the internal steering disc 3 is provided with a suitable compressible gasket 9 and the outer portion of the external steering disc 4 is provided with a peripheral sealing ring or gasket 8. When the block as sembly is slid into the casing 1, the gasket 9 is compressed between the opposing portions of the casing 1 and the internal steering disc 3. The compressing of the gasket 9 is limited by engagement of the internal steering disc 3 with a wall 15 of the casing 1.
It is to be noted that the openings 16 have a tapered outer portion so that the gasket 8 is gradually compressed and serves to compressively engage and seal the wall of the opening 16 against escape of fluid around the external steering disc 4.
The gasket 9 serves to prevent the passage of fluid under pressure out of the pressure chamber 18 of the pump into the bearing 12. This is obvious from the drawmg.
From the foregoing description of the pump, it will be readily apparent that the casing 1 requires very litlle machining, and that the components of the pump which require machining are readily accessible so that the machining may take place in a manner which is relatively inexpensive. Further, since the important components of the pump which must be aligned are connected together in a manner wherein they may be assembled externally of the casing, it will be apparent that the problem of alignment of the pump components is solved by the formation of the block assembly carrying the impeller and the impeller shaft. In addition, the movable components of the pump may be readily removed from the casing for the necessary inspection and repairs.
Although a single embodiment of the invention has been illustrated and described, it is to be understood that minor variations may be made in the pump structure of this invention within the spirit and scope of the invention, as defined in the appended claims.
I claim:
1. A vane-type pump, comprising a pot-like casing with inlet and outlet ports, an internal and an external steering disc, a cam ring disposed therebetween, a shaft rotatably journaled in said steering discs and extending beyond said external disc, a vane-type rotor fixedly secured to said shaft and rotatably journaled in said cam ring, a single means to both connect and center said discs and said ring with respect to each other thus forming an integral unlit independently mountable, said unit being received by 'said case; bolt means to fasten and sealing means to seal said' unit in said case, a suction chamber and a pressure chamber being defined'between said case and saidunit, said inlet port communicating through said suction chamber with the interior of said cam ring and said outlet port communicating through said pressure chamber with the interior of said cam ring, and wherein said discs and said ring are defined by cylindrical outer surfaces, said surfaces all having the same outer diameter and wherein said means to both connect and center said discs and said ring with respect to each other is an outer ring having an inner diameter equal to the outer diameter of said discs and said cam ring, and said outer ring having a width exceeding the W'idth'of said cam r-ing, said outer ring being impressed over said inner'disc; said cam ring and said external disc thus securing said discs and said ring with respect to each other and likewise centering them.
2. The pump of claim 1 wherein said block assembly includes a circumferential sealing ring engaging said cas- 4 ing open end and sealing said casing against the escape of fluid from said suction chamber. f
3. The pump of claim 1 wherein said block assembly includes an outer circumferential sealing ring engaging said casing open end and sealing said casing against the escape of fluid from said suction chamber, and an inner sealing'ri-ng on said block assembly engaging said casing opposite end and sealing said blockassembly against the inflow of fluid pressurized by said vane in said pressure chamber.
7 References Cited by the Examiner UN D S AT S P E TS.
2,825,287 3/ 58 Ostwald 103-136 2,827,854 3/5 ub r 103 13s 2,856,860 10/58 Roth 103,. 13s 3,012,511 12/61 Adams??? 103 136 3,065,707 11/62 -:'?.-.--.7---"r:--..---
KARL J. ALBRECHT, Primary Eramimer.

Claims (1)

1. A VANE-TYPE PUMP, COMPRISING A POT-LIKE CASING WITH INLET AND OUTLET PORTS, AN INTERNAL AND EXTERNAL STEERING DISC, A CAM RING DISPOSED THEREBETWEEN, A SHAFT ROTATABLY JOURNALED IN SAID STEERING DISCS AND EXTENDING BEYOND SAID EXTERNAL DISC, A VANE-TYPE ROTOR FIXEDLY SECURED TO SAID SHAFT AND ROTATABLY JOURNALED IN SAID CAM RING, A SINGLE MEANS TO BOTH CONNECT AND CENTER SAID DISCS AND SAID RING WITH RESPECT TO EACH OTHER THUS FORMING AN INTEGRAL UNIT INDEPENDENTLY MOUNTABLE, SAID UNIT BEING RECEIVED BY SAID CASE, BOLT MEANS TO FASTEN AND SEALING MEANS TO SEAL SAID UNIT IN SAID CASE, A SUCTION CHAMBER AND A PRESSURE CHAMBER BEING DEFINED BETWEEN SAID CASE AND SAID UNIT, SAID INLET PORT COMMUNICATING THROUGH SAID SUCTION CHAMBER WITH THE INTERIOR OF SAID CAM RING AND SAID OUTLET PORT COMMUNICATING THROUGH SAID PRESSURE CHAMBER WITH THE INTERIOR OF SAID CAM RING, AND WHEREIN SAID DISCS AND SAID RING ARE DEFINED BY CYLINDRICAL OUTER SURFACES, SAID SURFACES ALL HAVING THE SAME OUTER DIAMETER AND WHEREIN SAID MEANS TO BOTH CONNECT AND CENTER SAID DISCS AND SAID
US141087A 1960-10-06 1961-09-27 Rotating vane type pump Expired - Lifetime US3175506A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET19089A DE1226419B (en) 1960-10-06 1960-10-06 Rotary lobe pump

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US3175506A true US3175506A (en) 1965-03-30

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US141087A Expired - Lifetime US3175506A (en) 1960-10-06 1961-09-27 Rotating vane type pump

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3403630A (en) * 1966-12-22 1968-10-01 Trw Inc Power steering pump
WO2008148472A1 (en) * 2007-06-05 2008-12-11 Robert Bosch Gmbh Vane pump

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4414913C2 (en) * 1994-04-28 1997-03-20 Bosch Gmbh Robert Hydrostatic machine
DE4420370A1 (en) * 1994-06-10 1995-12-14 Rexroth Mannesmann Gmbh Single-stroke vane constant displacement pump
DE102006052996A1 (en) * 2006-11-10 2008-05-15 Zf Lenksysteme Gmbh Vane pump for steering unit of motor vehicle, has housing, outer ring and front plate centered to shaft, where front plate is provided with shaft hub that is provided with outlet for leakage oil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825287A (en) * 1953-12-17 1958-03-04 Teves Kg Alfred Rotary vane-type pump
US2827854A (en) * 1953-03-16 1958-03-25 New York Air Brake Co Variable speed pump with non-graduating by-pass valve control
US2856860A (en) * 1955-08-03 1958-10-21 Mechanisms Company Fluid pressure transducer with end clearance control
US3012511A (en) * 1958-04-22 1961-12-12 Cecil E Adams Fluid pressure energy translating device
US3065707A (en) * 1958-10-20 1962-11-27 Int Harvester Co Vane type oil pump lubrication system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2377299A (en) * 1942-11-19 1945-05-29 Detroit Lubricator Co Rotary pump
US2525619A (en) * 1947-02-13 1950-10-10 Thompson Prod Inc Pump
US2642802A (en) * 1948-12-14 1953-06-23 Vickers Inc Dual rotary pump for power transmissions
US2924182A (en) * 1955-08-31 1960-02-09 American Brake Shoe Co Fluid pressure energy translating device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2827854A (en) * 1953-03-16 1958-03-25 New York Air Brake Co Variable speed pump with non-graduating by-pass valve control
US2825287A (en) * 1953-12-17 1958-03-04 Teves Kg Alfred Rotary vane-type pump
US2856860A (en) * 1955-08-03 1958-10-21 Mechanisms Company Fluid pressure transducer with end clearance control
US3012511A (en) * 1958-04-22 1961-12-12 Cecil E Adams Fluid pressure energy translating device
US3065707A (en) * 1958-10-20 1962-11-27 Int Harvester Co Vane type oil pump lubrication system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3403630A (en) * 1966-12-22 1968-10-01 Trw Inc Power steering pump
WO2008148472A1 (en) * 2007-06-05 2008-12-11 Robert Bosch Gmbh Vane pump
DE102007039172B4 (en) 2007-06-05 2024-02-15 Robert Bosch Gmbh vane pump

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GB989068A (en) 1965-04-14
DE1226419B (en) 1966-10-06

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