WO2015104597A1 - Pompe trochoïde - Google Patents

Pompe trochoïde Download PDF

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Publication number
WO2015104597A1
WO2015104597A1 PCT/IB2014/066697 IB2014066697W WO2015104597A1 WO 2015104597 A1 WO2015104597 A1 WO 2015104597A1 IB 2014066697 W IB2014066697 W IB 2014066697W WO 2015104597 A1 WO2015104597 A1 WO 2015104597A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
sleeve
piston
cos
sin
Prior art date
Application number
PCT/IB2014/066697
Other languages
English (en)
Russian (ru)
Inventor
Станиславс МИРОПОЛЕЦС
Павелс МИРОПОЛЕЦС
Original Assignee
Станиславс МИРОПОЛЕЦС
Павелс МИРОПОЛЕЦС
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 Станиславс МИРОПОЛЕЦС, Павелс МИРОПОЛЕЦС filed Critical Станиславс МИРОПОЛЕЦС
Publication of WO2015104597A1 publication Critical patent/WO2015104597A1/fr

Links

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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/22—Rotary-piston machines or pumps of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth-equivalents than the outer member
    • 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
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • F01C21/106—Stators; Members defining the outer boundaries of the working chamber with a radial surface, e.g. cam rings
    • 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
    • F04C2250/00—Geometry
    • F04C2250/30—Geometry of the stator

Definitions

  • the invention relates to mechanical engineering and can be used for power drive, cooling and lubrication systems serving various mechanisms, in particular engines, as well as for pumping liquid and gas between containers.
  • Trochoid pumps in which the shaped profiles of the working surfaces are formed by trochoid fragments, are numerously represented in private inventions. Their main disadvantages are as follows: productivity and volumetric flow rate are limited by the permissible height of the teeth and blades; partial reverse return of the injected substance between the teeth of the interacting wheels reduces the efficiency of the pump.
  • the purpose of the invention is to increase the efficiency of the pump, reduce the size, weight and provide the following advantages: simplicity of design lack of ripple; ability to work at low and high pressures; the possibility of constructive refinement to obtain feed control.
  • the purpose of the present invention is achieved by using a cam shaft with a piston of a hyprochoidal profile placed inside the sleeve into the cavity of the epitrochoidal profile.
  • These structural improvements include the following.
  • the sleeve from the ends is closed by covers and inserted into the case in the form of a shell with inlet and outlet fittings.
  • the covers are the supports of the cam shaft, through one of them the shaft shaft protrudes outward, allowing rotation in both directions to change the pumping direction.
  • the processes of suction and discharge occur due to the fact that the contact lines of the piston with the sleeve divide the internal space into 4 variables with respect to the volume of the cavity.
  • the cavities are connected to the suction fitting at the time of expansion, sucking in liquid or gas, and with the pumping nozzle, at the time of reduction, squeezing them out. Stable pumping occurs.
  • figure 1 the device of the pump in longitudinal section
  • figure 2 is a view of the device along arrow A in figure 1;
  • FIG. 3 is a cross-sectional view of the device along line BB in FIG. 1;
  • figure 4 projection sleeve 1 in figure 1.
  • the device of the main components and parts of the pump is made as follows.
  • the sleeve 1 (Fig. 1, 3, 4) is a device in which the rotary pumping mechanism is located.
  • the outer surface of the sleeve is stationary in contact with the inner surface of the shell of the housing 3 and has five surface grooves: three for the seals 14, and two are communication channels 17 and 17 'of the same pressure cavities inside the sleeve through four channel openings 18 and 18'. Grooves are allowed to be made on the body.
  • the distance I between the communication channels should be equal to the distance between the holes in the housing under the fitting.
  • At the ends of the sleeve have threaded bores for fastening the covers and b 7.
  • a slip curve is rolled in from the inside by a hypotrochoid of the piston during shaft rotation. From both ends of the sleeve, the passage 19 is bored from the inside to a diameter d 19 > 14e for centering the covers b and 7.
  • the nominal length L i9 between the inner ends of the sleeve should be equal to the length C of the piston 2.
  • the angle ⁇ between the axes of the channel openings 18, 18 'and their diameters must be selected so that the holes are located closer to the small horizontal axis of the epitrochoid, but do not intersect it.
  • the piston 2 (Fig. 1, 3) has an axial longitudinal hole for landing on the cam 5 of the shaft directly, but movably or through sliding and rolling bearings.
  • the piston or cam shaft should be made of appropriate anti-friction material, such as bronze, etc.
  • the housing 3 (Fig. 1, 2, 3) may consist of a sheet sheath covering the outside of the sleeve, and two bosses 16 welded hermetically to the sheath, one above each communication channel 17 and 17 'of the sleeve. Channels are allowed to be made on the case.
  • the bosses have through threaded holes for connecting the fittings 15 and 15 '. The distance I between the axes of the holes should be equal to the distance between the communication channels on the sleeve.
  • the housing can be made integral with fittings.
  • the shaft 4 (Fig. 1, 3) contains sections with different sizes of the outer surfaces.
  • the output section is supported on the through cover b through the bearing or the flange 8.
  • the middle section serves for a fixed fit of the cam 5.
  • the inner end section of the shaft rests on the Central part of the blind cover 7 through the sliding bearing 9 or rolling.
  • the outer end section is used to connect the power drive.
  • the configuration of this section may be different depending on the known connection methods: keyed, gear, through a polyhedron, etc.
  • the shaft can be made as one integral part with a cam 5.
  • Cam 5 (Fig. 1, 3) is made in the form of a cylinder with a longitudinal hole d 5 .
  • the longitudinal axis of the hole is offset from the axis of the large cylindrical surface with a diameter of D 5 by an eccentricity e, which determines the parameters of the piston hyprochoid and sleeve epitrochoid.
  • a piston 2 is movably mounted on a surface with a diameter of D 5.
  • the cam length must be less than the piston length L 2 .
  • Caps b and 7 serve to center the shaft relative to the liner and to limit the longitudinal displacement of the piston.
  • the end face of the piston should freely, but without gaps, end the piston end.
  • This inner part of the cover is inserted into the end bore of the sleeve, centering it, and has a groove under the seal 13 on the centering surface.
  • Simple fixing holes are placed on the covers opposite the threaded holes on the ends of the sleeve. The covers differ only in the central part.
  • In the through cover b there is a central hole for accommodating the bearing or flange 8 under the shaft outlet and threaded holes for mounting the flange.
  • In the blind cover 7 there is a central recess for the rolling or sliding bearing 9 of the shaft 4.
  • Flange 8 (Fig. 1, 2) serves as a support for the outgoing part of the shaft. It has a Central hole with a groove for the seal 11. On the cylindrical surface of the flange embedded in the Central hole of the cover b, there is a second groove for the seal 12. On the flange there are simple mounting holes opposite the threaded holes of the cover b. The flange material is anti-friction.
  • the sliding bearing 9 (Fig. 1) has a central hole machined by the diameter of the shaft support portion, an outer surface pressed into the blind cover 7, and a protruding belt limiting the insertion depth near the end.
  • the sealing washer 10 (Fig. 3) with the outer and inner diameters machined by fittings 15, 15 'and the boss 16, are made of material resistant to the pumped substance.
  • O-rings 11, 12, 13, 14 (Fig. 1) - from a cord with a round or other cross-sectional profile.
  • the seal material is resilient and resistant to the pumped substance. Seals are placed on the corresponding parts in the grooves and are designed for tight contact of the parts: 11 - movable relative to each other and 12, 13, 14 - stationary. When the parts are precisely adjusted to each other, some of the above seals may not be used.
  • the fitting 15 and 15 '(Fig. 2, 3) is selected as a finished product for pump performance.
  • the fittings can be integral from the housing 3, for example, welded.
  • the piston has at least four points of contact with the sleeve, which divide the space between the piston and the sleeve into variables by volume of the part.
  • the presented pump sucks in and further squeezes out more liquid (approximately twice) than with gears of the gear pump, conventionally inserted into the internal dimensions of FIG. 3 (due to limited tooth height).
  • 7 - cover is deaf; 17 - - high pressure communication channel;

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

L'invention concerne des pompes hydrauliques et pneumatiques comportant un rotor fonctionnel, lesquelles peuvent être utilisées pour le pompage de liquide et de gaz entre des récipients ou pour assurer l'alimentation en ces derniers afin d'assurer des fonctions de refroidissement, de lubrification et d'actionnement hydraulique, notamment dans des moteurs à combustion interne (Fig. 1). La possibilité d'atteindre un rendement et un coefficient d'efficacité élevés par rapport aux pompes à dents et à pales pour des dimensions et une masse identique est due au fait que la pompe de la présente invention utilise une nouvelle structure comprenant une gorge à motif dans laquelle se trouve un arbre à came d'actionnement avec un piston à motif. Lors du changement du sens de rotation de l'arbre, la pompe change la direction de pompage du fluide ou du gaz.
PCT/IB2014/066697 2014-01-07 2014-12-08 Pompe trochoïde WO2015104597A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LVP-14-04 2014-01-07
LVP-14-04A LV15039B (lv) 2014-01-07 2014-01-07 Trohoidālais sūknis

Publications (1)

Publication Number Publication Date
WO2015104597A1 true WO2015104597A1 (fr) 2015-07-16

Family

ID=53523576

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2014/066697 WO2015104597A1 (fr) 2014-01-07 2014-12-08 Pompe trochoïde

Country Status (2)

Country Link
LV (1) LV15039B (fr)
WO (1) WO2015104597A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018073620A1 (fr) * 2016-10-18 2018-04-26 Станиславс МИРОПОЛЕЦС Pompe à piston rotatif

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976780U (ja) * 1982-11-17 1984-05-24 三菱重工業株式会社 回転式流体機械
JPH0842462A (ja) * 1994-07-27 1996-02-13 Sato Shinku Kikai Kogyo Kk 回転ポンプ
RU2265321C2 (ru) * 2004-02-03 2005-12-10 Иркутская государственная сельскохозяйственная академия Федеральное государственное образовательное учреждение высшего профессионального образования Вакуумный насос
WO2011135747A1 (fr) * 2010-04-27 2011-11-03 大豊工業株式会社 Pompe à palettes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976780U (ja) * 1982-11-17 1984-05-24 三菱重工業株式会社 回転式流体機械
JPH0842462A (ja) * 1994-07-27 1996-02-13 Sato Shinku Kikai Kogyo Kk 回転ポンプ
RU2265321C2 (ru) * 2004-02-03 2005-12-10 Иркутская государственная сельскохозяйственная академия Федеральное государственное образовательное учреждение высшего профессионального образования Вакуумный насос
WO2011135747A1 (fr) * 2010-04-27 2011-11-03 大豊工業株式会社 Pompe à palettes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018073620A1 (fr) * 2016-10-18 2018-04-26 Станиславс МИРОПОЛЕЦС Pompe à piston rotatif

Also Published As

Publication number Publication date
LV15039A (lv) 2015-07-20
LV15039B (lv) 2015-09-20

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