US3373691A - Gearwheel type distributor pump - Google Patents

Gearwheel type distributor pump Download PDF

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Publication number
US3373691A
US3373691A US545962A US54596266A US3373691A US 3373691 A US3373691 A US 3373691A US 545962 A US545962 A US 545962A US 54596266 A US54596266 A US 54596266A US 3373691 A US3373691 A US 3373691A
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US
United States
Prior art keywords
gearwheels
pressurized liquid
gearwheel
liquid
driver
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
US545962A
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English (en)
Inventor
Kohler Arnold
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.)
Sulzer Escher Wyss AG
Original Assignee
Escher Wyss AG
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Filing date
Publication date
Application filed by Escher Wyss AG filed Critical Escher Wyss AG
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Publication of US3373691A publication Critical patent/US3373691A/en
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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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
    • 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
    • F04C2240/00—Components
    • F04C2240/70—Use of multiplicity of similar components; Modular construction
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2514—Self-proportioning flow systems
    • Y10T137/2516—Interconnected flow displacement elements

Definitions

  • GEARWHEEL TYPE DISTRIBUTOR PUMP Filed April 28, 1966 United States Patent 3,373,691
  • This invention relates to a gearwheel type distributor pump having at least two gearwheels, connected together in a rotationally fast manner, each of which is connected with at least one further gearwheel and forms with the latter a conveying element for at least one pressurized liquid consumer, said conveying elements having a common inflow chamber for the pressurized liquid to be distributed to the consumers.
  • gearwheel type distributor pump The purpose of such a gearwheel type distributor pump is to distribute pressurized liquid, supplied by a pre-connected pump, in a predetermined ratio among the various consumers.
  • the distributor pump is not to receive any power from the outside, but is driven by the pressurized liquid supplied by the pro-connected pump.
  • FIG. 1 shows a gearwheel type distributor pump partly in side elevation and partly in section
  • FIG. 2 shows a section on the line IIII in FIG. 1,
  • FIG. 3 shows a partial section on the line HIIII in FIG. 2
  • FIG. 4 shows the same section as FIG. 2, but with altered position of the starting device
  • FIG. 5 shows a section on the line V-V in FIG. 1
  • FIG. 6 shows a section on the line VIVI in FIG. 1.
  • the gearwheel type distributor pump shown is similar to the multiple gearwheel pump disclosed in copending application Serial No. 540,882. It has a number of conveying elements 1 arranged axially in a row, each having a central gearwheel 2, and two further gearwheels 3 in engagement with said central gearwheel. Between the gearwheels 2, 3 of the individual elements 1, following each other in the axial direction, are bearing discs 4, and at the respective ends of the row of elements is bearing disc 5 and 6.
  • the gearwheels 2, 3 lie in bores of intermediate discs 7, by which they are surrounded with only a slight clearance and are provided with journals 8 and 8' supported in corresponding bores of the bearing discs 4, 5, 6.
  • the bearing discs 4, 5, 6, the intermediate discs 7 and a front disc 9 form the housing of the distributor pump and are held together by four screws 10 passing through in the axial direction.
  • the other front discs 9' is secured to the bearing disc 8 by means of six screws 10.
  • the middle gearwheels 2 with their journals 8 are arranged in axial alignment and have central bores and in these bores are provided with splines 11.
  • a common shaft 12, passing through all the gearwheels 2, has splines corresponding to and engaging the splines 11 of the gearwheels 2.
  • the gearwheels 2 are thus connected together by the shaft in a manner fast for rotation.
  • the shaft 12 is not provided with any drive from the outside, but it serves merely for the rotationally fast connection of the gearwheels 2.
  • the latter are driven by the pressurized liquid supplied through the channels 13. Back-pressure diiference between the individual consumers then implies an equalization of performance between the individual conveying elements through the shaft 12.
  • This starting device has a driver 18 mounted co-axially with the gearwheels 2 connected together rotationally fast.
  • This driver 18 is connected to the shaft 12 and hence also to the gearwheels 2 by a freewheel coupling '19 of known type, shown diagrammatically in FIGS. 2 and 4.
  • the driver 18 is rotatable between two limit positions shown in FIGS. 2 and 4. It has a substantially cylindrical part 18' and two vanes 18', diametrically opposite one another.
  • the pressurized liquid delivered by a pre-connected pump, not shown, and to be distributed, is supplied to the gearwheel distributor pump through a central opening 23 of the front disc 9', and enters a channel 24 (FIG. 6), extending transversely of the axis, and communicating through openings 25 with the space 21 (FIGS. 2 and 4).
  • the driver 18 will be held in the limit position shown in FIG. 2 by the springs .22 acting against the operational direction of rotation of the gearwheels 2.
  • the channels 13 passing axially through the bearing discs 4, 6 and the intermediate discs 7 are then covered by the vanes 18" of the driver 18. If the pre-connected pump is set in operation, and at the same time the pressurized liquid to be distributed is pumped to the spaces 21, this liquid is unable at first to enter the channel 13.
  • the vanes 18" of the driver 18, however, are now acted on by the pressurized liquid in the operational direction of rotation of the gearwheels 2, and the driver 18 rotates in the clockwise direction as soon as the pressure of the liquid has overcome thecounteracting forces of the springs 22.
  • the freewheel coupling then engages and drives the shaft 12.
  • the driver 18 finally reaches the angular position shown in FIG. 4, in which the channels 13 are fully uncovered by the vanes 18", so that the pressurized liquid can pass unimpeded to the conveying elements 1.
  • the starting device with the driver 18 is thus connected in front of the inflow chamber of the conveying elements 1, which chamber is formed by the channels 13, such that said starting device prevents entry of the pressurized liquid into said inllow chamber until the gearwheels 2, 3 of the pumping elements 1 have made a rotary movement.
  • vanes 18 of the driver 18 are provided with axial throughgoing bores 26 (FIGS. 2, 3, 4), which establish pressure equalization.
  • a gearwheel type distributor pump comprising at least two conveying elements for the distribution of supplied pressurized liquid to a number of liquid consumers, each conveying element consisting of at least two gearwheels arranged to engage one another; housing means for rotatably supporting and for enclosing said gearwheels; said "housing means defining a common ini flow chamber for the pressurized liquid being supplied to said conveying elements and individual discharge channels for the delivery of the liquid to said consumers; means for rotatationally fast interconnecting a group of said gearwheels comprising one gearwheel of each conveying element; and an automatic starting device connected to said group of gearwheels and designed to be actuated by the pressurized liquid to be supplied to said inflow chamber so as to rotate said group of gearwheels in their operational direction of rotation.
  • said starting device comprises a closure means arranged in front of said common inlet chamber of the conveying elements and constructed in such a manner that it prevents the pressurized liquid being supplied from entering into said inflow chamber until the conveying elements have been started.
  • said starting device comprises a driver mounted coaxially with said group of gear wheels so as to be rotatable between two limit positions; a freewheel coupling for the connection of said driver with said group of gearwheels to retate them in their operational direction of rotation; means for causing the pressurized liquid being supplied to drivingly act upon said driver in said operational direction of rotation to rotate it toward one of said limit positions; and spring means counteracting said action of the pressurized liquid upon said driver to hold it in the other limit position in the absence of pressurized liquid supply.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
US545962A 1965-06-03 1966-04-28 Gearwheel type distributor pump Expired - Lifetime US3373691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH777965A CH423491A (de) 1965-06-03 1965-06-03 Zahnradverteilerpumpe

Publications (1)

Publication Number Publication Date
US3373691A true US3373691A (en) 1968-03-19

Family

ID=4330332

Family Applications (1)

Application Number Title Priority Date Filing Date
US545962A Expired - Lifetime US3373691A (en) 1965-06-03 1966-04-28 Gearwheel type distributor pump

Country Status (4)

Country Link
US (1) US3373691A (de)
AT (1) AT259375B (de)
CH (1) CH423491A (de)
DE (1) DE1553036A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243978A (en) * 1938-08-27 1941-06-03 Integral Aux Y Equipment Ltd Rotary hydraulic intensifier
US2386219A (en) * 1943-04-15 1945-10-09 Pesco Products Co Multiple unit compact gear divider assembly
US2862449A (en) * 1956-11-08 1958-12-02 Boeing Co Positive action flow divider
US3326136A (en) * 1965-09-30 1967-06-20 Houdaille Industries Inc Fluid flow control device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243978A (en) * 1938-08-27 1941-06-03 Integral Aux Y Equipment Ltd Rotary hydraulic intensifier
US2386219A (en) * 1943-04-15 1945-10-09 Pesco Products Co Multiple unit compact gear divider assembly
US2862449A (en) * 1956-11-08 1958-12-02 Boeing Co Positive action flow divider
US3326136A (en) * 1965-09-30 1967-06-20 Houdaille Industries Inc Fluid flow control device

Also Published As

Publication number Publication date
AT259375B (de) 1968-01-10
CH423491A (de) 1966-10-31
DE1553036A1 (de) 1969-11-06

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