US3303790A - Rotating-cam vane pump - Google Patents

Rotating-cam vane pump Download PDF

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Publication number
US3303790A
US3303790A US378150A US37815064A US3303790A US 3303790 A US3303790 A US 3303790A US 378150 A US378150 A US 378150A US 37815064 A US37815064 A US 37815064A US 3303790 A US3303790 A US 3303790A
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United States
Prior art keywords
cam
outlet
housing
pumping chamber
passage means
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.)
Expired - Lifetime
Application number
US378150A
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English (en)
Inventor
Richard A Mccray
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.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries 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
Application filed by Deutsche ITT Industries GmbH filed Critical Deutsche ITT Industries GmbH
Priority to US378150A priority Critical patent/US3303790A/en
Priority to GB43353/64A priority patent/GB1061278A/en
Priority to FR995355A priority patent/FR1417472A/fr
Priority to DE19651553083 priority patent/DE1553083A1/de
Priority to SE8430/65A priority patent/SE322128B/xx
Application granted granted Critical
Publication of US3303790A publication Critical patent/US3303790A/en
Anticipated expiration legal-status Critical
Assigned to ITT CORPORATION reassignment ITT CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • F04C2/40—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 group F04C2/08 or F04C2/22 and having a hinged member
    • F04C2/46—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 group F04C2/08 or F04C2/22 and having a hinged member with vanes hinged to the outer member

Definitions

  • the present invention relates in general to a rotary pump of this vane type and, more particularly, to a pump of this type wherein the vanes are ca-rried by the housing of the pump and extend radially inwardly into the lpumping chamber, and wherein the volumes of the intervane spaces are alternately increased and decreased by a rotating cam in engagement with the inner ends of the vanes.
  • a rotating-cam vane pump of the foregoing type includes: ya housingr provided therein with a cylindrical pumping chamber; ⁇ a cam in and rotatable about the axis of the pumping chamber and having axially spaced end Walls and a peripheral wall defining one or more lobes; a shaft rotatable relative to the housing about the axis of the pumping chamber and connected to the cam to rotate same; and circumferentially spaced, displaceable vanes carried by the housing and extending radially inwardly into the pumping chamber :and into engagement with the .peripheral wall of the cam.
  • the cam alternately increase and decreases ythe volumes lof the spaces between the vanes one or more times p-er revolution so as to provide the pumping action characteristic of a pump of this type.
  • each inlet end of the inlet passage means is centrally located on the axis of rotation of the cam, Vand the inlet passage means may be so shaped that it provides a centrifugal pumping action as the cam rotates.
  • the primary object of the invention is to provide a rotating-cam vane pump of the foregoing construction including an outlet valve means, for discharging t-he fluid being pumped from the decreasing-volume intervane spaces, comprising at least one outlet valve plate rotatable with the cam and provided radially outwardly of the peripheral wall of the cam with at least one outlet opening so ylocated circumferentially that it constantly communicates with intervane spaces of decreasing volume.
  • Another object is to provide a cam having at least one outlet valve plate Aconstituting a radially outward extension of one end of the cam, and preferably a cam end in which ⁇ an axial inlet end of the inlet passage means is formed.
  • Still another object is to utilize the outlet valve plate or plates as a means for closing an open end or ends of the cylindrical pumping chamber, the periphery of ice each outlet v-alve plate cooperating with the housing in a Huid tight manner to achieve this result.
  • a further object of the invention is to provide a pump having in the housing at least one axial inlet port which communicates with an adjacent axial inlet end of the inlet passage means in cam, and having in the housing at least one annular outlet passage means which communicates with the outlet opening or openings in an adjacent outlet valve plate and which encircles an adjacent axial inlet port in the housing, such annular outlet passage means being located on the opposite side of the adjacent outlet valve plate from the pum-ping chamber.
  • Yet another object of the invention is to provide a housing which includes an open-end body portion having the open-end pumping chamber therein, and which includes at least one end closure portion having therein an axial inlet port and a surrounding annular outlet passage, means, and also having therein an outlet port in communication with the annular outlet passage means.
  • the fluid being pumped may be taken into the cam at one or both ends of the cam, and may Ebe discharged from the pumping chamber at one or both ends of the pumping chamber.
  • FIG. l is a perspective view of a rotating-cam vane pump wnich embodies the invention, with parts of the y housing of the pump broken away to reveal the interior of the pump;
  • FIG. 2 is an enlarged, longitudinal sectional View containing the axis of the pump of FIG. l;
  • FIGS. 3 and 4 are transverse sectional views both taken along the arrowed line 3 3 of FIG. 2, but illustrating diierent operating positions of various components of the Pump;
  • FIG. 5 is a longitudinal sectional view of another rotating-cam vane pump which embodies the invention, FIG. 5 being taken along the arrowed line 5 5 of FIG. 6;
  • FIG. 6 is a transverse sectional View taken along the arrowed line 6 6 of FIG. 5;
  • FIG. 7 is a semidiagrammatic longitudinal sectional view of still another rotating-cam vane pump which embodies the invention.
  • PUMP 10 Referring particularly to FIGS. l and 2 of the drawings, the embodiment of the invention illustrated therein is designated generally by the numeral 10 and is shown as including a housing 12 carried by a suitable mounting pedestal 14.
  • the housing 12 is formed in two parts, viz., a body portion 16 open at one end, and a closure portion 18 for closing the open end of the body portion. 'Ihe two parts of the housing 12 may be secured together in any suitable manner, no securing means being shown.
  • the body portion 16 of the housing 12 is provided therein with a cylindrical pumping chamber 20 having an open end 22, the other end of the pumping chamber being shown as closed by an end wall 24 of the body portion of the housing.
  • a shaft 26 Coaxial with the pumping chamber 20, and extending thereinto through the end wall Y24,V is a shaft 26 mounted for rotation in a suitably sealed bearing 28 carried by the mounting pedestal 14.
  • the shaft 26 is sealed relative to the end wall 24 of the pumping chamber 20 by a suitable sealing assembly 30 interposed therebetween.
  • the shaft 26 which may be driven in any suitable manner, drives a cam 32 disposed in and rotatable about the axis of the pumping chamber 20.
  • the cam 32 is suitably connected to the shaft 26 for rotation therewith.
  • the cam 32 is seated against an annular shoulder 34 on the shaft 26 by a nut 36 acting on the cam through a washer 38.
  • a key 40 provides a torque transmitting connection between the shaft 26 and the cam 32.
  • the cam 32 includes end Walls 42 and 44 and a peripheral wall 46 spaced from the peripheral wall of the pumping chamber 20, the end wall 42 abutting the end wall 24 of the pumping chamber.
  • the open end 22 of the pumping chamber 20 is closed by an annular flange 48 on the cam 32.
  • the annular flange 48 which is shown as formed integrally with the cam 32, extends radially outwardly beyond the peripheral wall 46 of the cam, and one side of the annular flange forms a radially outward extension of the end wall 44 of the cam.
  • the periphery of the annular flange 48 is disposed in an annular groove 50 in the housing 12, such groove being formed in part by the body portion 16 of the housing and in part by the closure portion 18 thereof.
  • circumferentially spaced, displaceable vanes 52 are carried by the body portion 16 of the housing 12 and extend inwardly into the pumping chamber 20 and into eugagement with the peripheral wall 46 of the cam 32. Any suitable displaceable vanes may be utilized.
  • flexible, elastomeric vanes 52 are employed, the outer ends of such vanes being inserted into longitudinal grooves 54 in the peripheral wall of the pumping chamber 20.
  • the longitudinal grooves 54 and the outer ends of the vanes 52 are so formed as to key the vanes in the grooves.
  • the cam 32 is shown as provided with a single lobe 56 which alternately increases and decreases the volumes of the spaces 58 between the vanes 52, as the cam rotates, to provide the pumping action characteristic of a pump of this type.
  • the single lobe 56 shown the volume of each intervane space 58 is alternately increased and decreased once during each cam revolution.
  • two or more pumping cycles per cam revolution may be achieved through the use of a cam having two or more lobes.
  • the cam 32 acts as an inlet valve means for delivering the iluid to be pumped to the intervane spaces 58 as the volumes thereof are increased in response to cam rotation. More particularly, the cam 32 is provided therein with inlet passage means 60 having an axial inlet and end 62 formed in the end wall 44 of the cam and centrally located on the axis of rotation thereof.
  • the inlet passage means 60 includes a cylindrical central portion 64 one end of which defines the axial inlet end 62 of such passage means.
  • the inlet passage means 60 spirals outwardly to an outlet end 66 in the peripheral wall 46 of the cam 32, such outlet end being bifurcated by a radial partition 68 to prevent damage to the vanes 52 by the edges of the outlet end of the inlet passage means.
  • the outlet end 66 of the inlet passage means 60 is so located circumferentially of the peripheral wall 46 of the cam 32 that it delivers the lluid to be pumped to those intervane spaces 58 the volumes of which are being increased as the cam rotates in the direction of the arrow 70.
  • a portion 72 of the inlet passage means 60 adjacent the outlet end 66 thereof is separated from the cylindrical central portion 64 of the inlet passage means by a partition 74 extending circumferential-ly in the direction of rotation.
  • This centrifugal pumping action is important since it delivers the fluid being pumped to the increasing-volume intervane spaces 58 under pressure to insure maximum filling thereof. Also, the utilization of the axial inlet provided by the axial inlet end 62 of the inlet passage means 60, and the cylindrical central portion 64 thereof, minimizes any tendency toward cavitation.
  • the uid to be pumped is introduced into the axial inlet end 62 of the inlet passage means 60 through an axial inlet port 76 formed in the closure portion 18 of the housing 12.
  • the closure portion 18 and the end wall 44 of the c-am 32 are formed to provide a labyrinth seal 78 encircling the axial inlet end 62 ⁇ of the inlet passage means 60 ⁇ and the axial inlet port 76.
  • a labyrinth seal 78 encircling the axial inlet end 62 ⁇ of the inlet passage means 60 ⁇ and the axial inlet port 76.
  • other types of seals may be employed.
  • annular ange 48 in addition to performing the function of closing the open end 22 of the pumping chamber 20, l also serves as an outlet valve means for receiving the pumped fluid from those intervane spaces 58 the volumes of which are being decreased by the cam 32.
  • the annular l'flange 48 may be regarded as constituting an outlet valve plate, and it is provided, between the peripheral wall 46 of the cam 32 and the peripheral wall of the pumping chamber, with -a circumferentially extending outlet opening 80 so located circumferentially ⁇ as to be in communication with the decreasing-volume intervane spaces. This action will be apparent from a comparison of FIGS. 3 and 4 of the drawings.
  • the outlet yopening 80 in the outlet valve plate 48 is in constant communication with an annular outlet passage means 82 formed in the closure portion 18 of the housing 12 and leading -to an outlet port 84 formed therein.
  • the outlet passage means 82 which is located on the opposite side of the outlet valve plate 48 from the pumping chamber 20, encircles the axial inlet port 76 and is sealed with respect thereto by the laby-rinth seal 78.
  • the outer periphery of the outlet passage means 82 is sealed by a simil-ar labyrinth seal y86, or other suitable seal.
  • the particular construction illustrated provides a convenient porting arrangement wherein both the inlet port 76 and the outlet port 84 are accessible from the same end of the pump 10.
  • FIGS. 5 and 6 of the drawings the embodiment of the invention illustrated -therein is designated generally by the numeral 110 and is shown as including a housing 112 bolted, or otherwise secured, to a suitable mounting pedestal 114.
  • the housing 112 is formed in three parts, viz., a tubular lbody portion 116, an end mounting portion 117 closing one end of the body portion 116 and secured to the pedestal 114, and an end closure portion 118 closing the other end of the body portion.
  • the three parts lof the housing 112 may be bolted together as shown, or secured together in any other sui-table manner.
  • the tubular body portion 116 of the housing 112 is provided therein with a cylindrical pumping chamber 120 having an open end 122, the ⁇ other end of the pumping chamber being shown as closed by the end portion 117 of the housing.
  • a shaft 126 Coaxial with the pumping chamber 120, and extending thereinto through the end portion 117 of the housing 112, is a shaft 126 mounted for 4rotation in a suitably sealed bearing 128 carried by the mounting pedestal 114.
  • the shaft 126 is sealed relative to the end portion 117 of the housing 112 by a suitable sealing asf sembly 130 interposed therebetween.
  • the shaft 126 which may be driven in any suitable manner, drives a cam 132 disposed in and rotatable about the axis of the pumping chamber 120.
  • the cam 32 is suitably connected Ito the shaft 126 for rotation therewith.
  • the cam 132 has an annular surface seated against an annular shoulder 134 on the shaft 126 by a -nut 136 acting on the cam through a washer 138.
  • a ⁇ key 140 provides a 4torque transmitting connection between the shaft 126 and the cam 132.
  • the cam 132 includes end walls 142 and 144 yand a peripheral wall 146 spaced from the Iperipheral Wall of the pumping chamber 120, the end wall 142 abutting the end portion 117 of the housing 112.
  • the open end 112 of the .pumping chamber 120 is closed by an Iannular flange 148 on the cam 132.
  • the annular ange 148 which is shown as formed integrally with the cam 132, extends radially outwardly beyond the peripheral wall 146 of the cam, and one side of the annular liange forms a radially outward extension of the end wall 144 of the cam.
  • the periphery of the annular ange 148 is disposed in an annular groove 150 in the end portion 118 of the housing 112.
  • vanes 152 are carried by the tubular body portion 116 of the housing 112 and extend inwardly into the pumping chamber 120 and into engagement with the peripheral wall 146 of the cam 132.
  • the vanes 152 are elastomeric and are formed integrally with an elastomeric annulus 154 carried by, and preferably bonded to, the tubular body .portion 116 ofthe housing 112.
  • the elastomeric annulus 154 has considerable thickness in the radial direction so that, as the vanes 152 flex, adjacent portions of the elastomeric annulus 154 flex with them.
  • the cam 132 is shown as provided with two diametrically-opposed lobes 156 which alternately increase and decrease the volumes of the spaces 158 between the vanes 152, as the cam rotates, to provide the pumping action characteristic of a pump of this type.
  • the volume of each intervane space 158 is alternately increased and decreased twice during each cam revolution.
  • the number of pumping cycles per cam revolution may be increased or decreased through the use of a cam having more lobes, or one lobe.
  • the cam 132 acts as an inlet valve means for delivering the fluid to be pumped to the intervane spaces 158 as the volumes thereof are increased in response to cam rota' tion. More particularly, the cam 132 is provided therein with inlet passage means 160 having an axial inlet end 162 formed in the end wall 144 of the ⁇ cam and centrally located on the axis of rotation thereof.
  • the inlet passage means 169 includes a cylindrical cent-ral portion 164 one end of which defines the axial inlet end 162.
  • the inlet passage means 160 includes outlet branches 165 respectively terminating in outlet ends 166 in the peripheral wall 146 of the cam 132, such outlet ends being -bifurcated by radial partitions 168 to prevent damage to the vanes 152 by the edges of the outlet ends of the inlet passage means.
  • outlet ends 166 of the inlet passage means 160 are so located circumferentially of the peripheral wall 146 of the cam 132 that they deliver the fluid to be pumped to those intervane spaces 158 the volumes of which are being increased as the cam rotates in the direction of the arrow 170, FIG. 6. This action is characteristic of pumps of this type so that a further description is not necessary.
  • the iiuid to be pumped is introduced into the axial inlet end 162 of the inlet passage means 160 through an axial inlet port 176 in the end portion 118 of the housing 112.
  • An O-ring 178 is carried by the e-nd portion 118 and encircles the axial inlet port 176, such O-ring engaging the end wall 144 of the cam 132 around the axial inlet end 162 of the inlet passage means 160 to provide a fluid tight seal.
  • the annular flange 148 in addition to closing the open end 122 of the pumping chamber 120, also serves as an outlet valve means for receiving the pumped fluid from those intervane spaces 158 the volumes of which are being decreased by the cam 132.
  • the annular ange 14-8 may be regarded as constituting -an outlet valve plate, and it is provided, between the peripheral wall 146 of the cam 132 and the peripheral wall of the pumping chamber, i.e., between the peripheral wall 146 of the cam 132 and the elastomeric annulus 154, with two circumferentially extending outlet openings 180 so located circumferentially as to be in communication with the decreasing-volume intervane spaces.
  • the outlet openings 180 in the outlet valve plate 148 are in constant communication with an annular outlet passage means 182 formed in the end portion 118 of the housing 112 and leading to an outlet port 184 formed therein.
  • the outlet passage means 182 which is located on the opposite side of the outlet valve plate 148 from the pumping chamber 120, encircles the axial inlet port 176 and is sealed with ⁇ respect thereto by the O-ring 178.
  • Another O-ring 186 carried by the end portion 118, engages the outlet valve plate 148v Vadjacent its periphery and seals the outer periphery of the annular outlet passage means 182. It will be noted that the side of the outlet valve plate 148 opposite the O-ring 186 engages the elastomeric annulus 154 to seal the outer boundaries of the intervane spaces 158 in a uid ltight manner.
  • FIG. 7 shows, semi-diagrammatically, a pump 210 of the invention which accomplishes this.
  • the pump 210 comprises a housing 212 which includes a tubular body portion 216 closed at its end by closure portions 218.
  • a shaft 226 extends axially through the body and closure portions 216 and 218 of the housing 212 and is supported by suitable lbearings, not shown, and sealed by suitable sealing assemblies 230.
  • the shaft 226 carries a cam 232 which may be generally similar to the cam 132 and which is secured to the shaft by a key 240.
  • the cam 232 differs from the cam 132 in having an outlet valve plate 248 at each end running in an annular groove 250 in the corresponding closure portion 218.
  • the cam 232 engages flexible, elastomeric vanes 252 integral with an elastomeric annulus 254 bonded to the tubular body portion 216.
  • the tubular body portion 216 is similar to the tubular body portion 116.
  • the cam 232 differs further from the cam 132 in that it is provided with an inlet passage means 260 having axial inlet ends 262 at both ends of the cam.
  • the inlet passage means 260 ter-minates in outlet ends 266 in much the same manner as the inlet passage means 160.
  • the closure portions 218 are provided with inlet ports 276 respectively -communicating with the axial inlet ends 262 of the inlet passage means 260 in the cam 232, fluid tight seals around the inlet ports 276 being provided by O- rings 278.
  • the outlet valve plates 248 are provided therein with outlet openings 280 similar to the outlet openings 180 in the outlet valve plate 148.
  • the closure portions 21S of the housing 212 are respectively provided with annular outlet passage means 282 communicating with the ⁇ outlet openings 280 ⁇ in the respective outlet valve plates 248.
  • the closure portions 218 are also provided with outlet ports 284 ⁇ respectively communicating with the two annular outlet passage means 282.
  • O-rings 286 provide fluid tight seals around the two annular outlet passage means 282, such O-rings engaging the outer sides of the two outlet valve plates 248 yadjacent the peripheries thereof.
  • the inner sides of the two outlet valve plates 248 engage the elastomeric annulus 245 in much the same manner as the outlet valve plate 148 engages the elastomeric annulus 154.
  • the pump 210 supplies the fluid to be pumped to the increasing-volume intervane spaces through both ends of the cam 232. Similarly, the pumped fluid is discharged from the decreasingvolume intervane spaces at both ends of the pump 218. Consequently, higher speeds may be used with the cam 232 than with the cam 132.
  • said inlet passage means having an inlet end formed in one of said end walls of said cam, and having an outlet end in said peripheral wall of said cam;
  • said inlet passage means having an axial inlet end formed in one of said end walls of said cam and lying on the axis of said pumping chamber, and having an outlet end in said peripheral wall of said cam;
  • said inlet passage means having an axial inlet end formed in one of said end walls of said cam and lying on the axis of said pumping chamber, and having an outlet end in said peripheral wall of said cam;
  • said inlet passage means having an axial inlet end formed in one of said end walls of said cam and lying on the axis of said pumping chamber, and having an outlet end in said peripheral wall of said cam;
  • said housing including a body portion having ⁇ said pumping chamber therein and an end closure portion having said outlet passage means, said inlet port and said outlet port formed therein.
  • inlet passage means in said ycam for delivering fluid to be pumped to the intervane spaces as the volumes thereof are increased;
  • said inlet passage means having an axial inlet end formed in one of said end walls of said cam and lying on the axis of said pumping chamber, and having an outlet end in said peripheral wall of said cam;
  • said housing including a body portion having said pumping chamber therein and an end closure portion having said outlet passage means, said inlet port and said outlet port formed therein.
  • said inlet passage means having inlet ends respectively formed in said end walls of said cam, and having an outlet end in said peripheral wall of said cam;
  • vanes being formed integrally at their outer ends with an elastomeric annulus within and bonded to said housing;
  • said inlet passage means having an inlet end formed in one of said end walls of said cam, and having an outlet end in said peripheral wall of said cam;

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
US378150A 1964-06-26 1964-06-26 Rotating-cam vane pump Expired - Lifetime US3303790A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US378150A US3303790A (en) 1964-06-26 1964-06-26 Rotating-cam vane pump
GB43353/64A GB1061278A (en) 1964-06-26 1964-10-23 Rotating-cam vane pump
FR995355A FR1417472A (fr) 1964-06-26 1964-11-26 Pompe rotative à aubes
DE19651553083 DE1553083A1 (de) 1964-06-26 1965-03-19 Rotationspumpe
SE8430/65A SE322128B (enrdf_load_stackoverflow) 1964-06-26 1965-06-24

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Application Number Priority Date Filing Date Title
US378150A US3303790A (en) 1964-06-26 1964-06-26 Rotating-cam vane pump

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US3303790A true US3303790A (en) 1967-02-14

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Application Number Title Priority Date Filing Date
US378150A Expired - Lifetime US3303790A (en) 1964-06-26 1964-06-26 Rotating-cam vane pump

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US (1) US3303790A (enrdf_load_stackoverflow)
DE (1) DE1553083A1 (enrdf_load_stackoverflow)
FR (1) FR1417472A (enrdf_load_stackoverflow)
GB (1) GB1061278A (enrdf_load_stackoverflow)
SE (1) SE322128B (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410219A (en) * 1967-04-17 1968-11-12 Gen Motors Corp Distortionable chamber low leakage pump
US3712765A (en) * 1970-04-03 1973-01-23 Itt Fluid handling apparatus
US4047857A (en) * 1974-11-04 1977-09-13 Arno Fischer Rotary piston engine
USD262538S (en) 1979-04-27 1982-01-05 Itt Industries, Inc. Pump impeller
EP0617201A1 (de) 1993-03-25 1994-09-28 Manfred Sommer Füll-, Fluid-Transport- und Pumpeinrichtung
WO2003062604A3 (en) * 2002-01-17 2003-11-27 Ea Technical Services Ltd Rotary positive displacement machine
WO2004031539A1 (en) * 2002-10-02 2004-04-15 E.A. Technical Services Limited Rotary positive displacement machine with orbiting piston
WO2015116230A1 (en) * 2014-02-03 2015-08-06 Cummins Inc. Camshaft thrust control secured by drive gear

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2019781A6 (es) * 1990-01-15 1991-07-01 Weber Espana Sa Bomba impulsora de gasolina para sistemas de inyeccion de motores de explision.
DE69911013T2 (de) * 1998-06-19 2004-07-08 Photosynthesis (Jersey) Ltd. Impellerpumpe mit flexiblen flügeln
DE102012211644B4 (de) * 2012-07-04 2016-05-12 Metabowerke Gmbh Flüssigkeitszuführeinrichtung für ein motorisch angetriebenes Werkzeuggerät und Werkzeuggerät

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Publication number Priority date Publication date Assignee Title
FR622779A (fr) * 1926-09-30 1927-06-07 Pompe rotative
CA452757A (en) * 1948-11-23 Wallace Chapman Charles Rotary compressor and exhauster
US2933046A (en) * 1956-12-26 1960-04-19 Jabsco Pump Co Pump with flexible impeller and flexible annular cam
US2971469A (en) * 1959-09-14 1961-02-14 Jabsco Pump Co Pump with floating end plates
US2976811A (en) * 1958-07-28 1961-03-28 Jabsco Pump Co Impeller with independent elastomeric blades and sealing means
FR1276001A (fr) * 1957-06-05 1961-11-17 Moteur cellulaire à palettes actionné par un fluide sous pression
US3128707A (en) * 1960-03-11 1964-04-14 Robert W Brundage Multiple discharge hydraulic pump

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA452757A (en) * 1948-11-23 Wallace Chapman Charles Rotary compressor and exhauster
FR622779A (fr) * 1926-09-30 1927-06-07 Pompe rotative
US2933046A (en) * 1956-12-26 1960-04-19 Jabsco Pump Co Pump with flexible impeller and flexible annular cam
FR1276001A (fr) * 1957-06-05 1961-11-17 Moteur cellulaire à palettes actionné par un fluide sous pression
US2976811A (en) * 1958-07-28 1961-03-28 Jabsco Pump Co Impeller with independent elastomeric blades and sealing means
US2971469A (en) * 1959-09-14 1961-02-14 Jabsco Pump Co Pump with floating end plates
US3128707A (en) * 1960-03-11 1964-04-14 Robert W Brundage Multiple discharge hydraulic pump

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410219A (en) * 1967-04-17 1968-11-12 Gen Motors Corp Distortionable chamber low leakage pump
US3712765A (en) * 1970-04-03 1973-01-23 Itt Fluid handling apparatus
US4047857A (en) * 1974-11-04 1977-09-13 Arno Fischer Rotary piston engine
USD262538S (en) 1979-04-27 1982-01-05 Itt Industries, Inc. Pump impeller
EP0617201A1 (de) 1993-03-25 1994-09-28 Manfred Sommer Füll-, Fluid-Transport- und Pumpeinrichtung
US5613846A (en) * 1993-03-25 1997-03-25 Sommer; Manfred Filling, fluid-transporting, and pumping device
WO2003062604A3 (en) * 2002-01-17 2003-11-27 Ea Technical Services Ltd Rotary positive displacement machine
US20050000214A1 (en) * 2002-01-17 2005-01-06 Driver Ronald William Rotary positive displacement machine
US7231894B2 (en) 2002-01-17 2007-06-19 E.A. Technical Services Limited Rotary positive displacement machine
WO2004031539A1 (en) * 2002-10-02 2004-04-15 E.A. Technical Services Limited Rotary positive displacement machine with orbiting piston
WO2015116230A1 (en) * 2014-02-03 2015-08-06 Cummins Inc. Camshaft thrust control secured by drive gear
CN106133313B (zh) * 2014-02-03 2018-10-30 康明斯公司 泵和组装泵的方法
US10487810B2 (en) 2014-02-03 2019-11-26 Cummins Inc. Camshaft thrust control secured by drive gear

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DE1553083A1 (de) 1970-03-19
GB1061278A (en) 1967-03-08
SE322128B (enrdf_load_stackoverflow) 1970-03-23
FR1417472A (fr) 1965-11-12

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