EP0048673B1 - Ensemble palette-fond statorique pour dispositifs hydrauliques rotatifs - Google Patents

Ensemble palette-fond statorique pour dispositifs hydrauliques rotatifs Download PDF

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Publication number
EP0048673B1
EP0048673B1 EP81401457A EP81401457A EP0048673B1 EP 0048673 B1 EP0048673 B1 EP 0048673B1 EP 81401457 A EP81401457 A EP 81401457A EP 81401457 A EP81401457 A EP 81401457A EP 0048673 B1 EP0048673 B1 EP 0048673B1
Authority
EP
European Patent Office
Prior art keywords
pallet
stator
ramps
rotor
assembly according
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
Application number
EP81401457A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0048673A1 (fr
Inventor
Jacob Kaegi
Daniel Leroy
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.)
Compagnie de Construction Mecanique Sulzer
Original Assignee
Compagnie de Construction Mecanique Sulzer
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 Compagnie de Construction Mecanique Sulzer filed Critical Compagnie de Construction Mecanique Sulzer
Priority to AT81401457T priority Critical patent/ATE7729T1/de
Publication of EP0048673A1 publication Critical patent/EP0048673A1/fr
Application granted granted Critical
Publication of EP0048673B1 publication Critical patent/EP0048673B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F01C21/0881—Construction of vanes or vane holders the vanes consisting of two or more parts

Definitions

  • the invention relates to rotary hydraulic devices, of the positive displacement pump type, with stator and rotor and axially sliding vanes in the rotor.
  • the Applicant has already produced a rotary hydraulic device of the positive displacement pump type with stator and coaxial rotor and with vanes sliding axially in the rotor, the stator comprising at least one bottom surface having, in a variable number, deformations with rectilinear zones suitable for operation, or recesses, said pallets following said bottom surface, characterized in that said recesses are made on movable elements of the stator, so that the depth of said recesses can be made variable, hence a variable flow rate for the device .
  • the stator S comprises, on the one hand, ramps R and, on the other hand, mobile stator elements M with recess E, ramps and recesses successively making the relay for constant contact with all or part of the front spout of each sliding pallet ( Figure 1).
  • the movable elements M can move in housings L made in the fixed stator part, under the action when stopped and / or during operation, by an external mechanical, hydraulic or magnetic control.
  • the Applicant has also produced a hydrostatic motor with axial sliding vanes in rotor housings and against a continuous surface of a stator bottom with a recess, and comprising an intercommunication circuit between pallets behind them.
  • the pallets are each housed in a housing formed in a rotor opposite a stator bottom S comprising recesses, one of which E has, with respect to an interstitial plane between rotor and stator and with respect to a rotor displacement , a ramp R1 deviating geometrically from said plane, a range P parallel to said plane and a ramp R2 geometrically approaching said plane.
  • Each recess E has a fluid inlet clearance LE and a fluid outlet clearance LS (FIG. 2).
  • the hydraulic motor with axial vanes leads to the production of trapezoidal vanes, this for a necessity of linear contact between the base of the vanes and the face of the stator in the access ramps to the recesses.
  • the contact generators G are oriented towards the center of rotation, and parallel to one another ( Figure 3).
  • the object of the present invention is to alleviate this problem and to facilitate manufacture (pallets, rotor, stator) and, moreover, to improve the resistance of the pallets to wear and impact.
  • the pallet In its movement, the pallet is perfectly in contact with the stator, its movement corresponds to that of the cylindrical milling cutter.
  • cylindrical contact bases are also to collect the end-of-travel thrust due to the acceleration of the pallet caused by its descent or its rise in the recess of the stator.
  • the pallet comprises a cylindrical contact base with the ramps of the stator bottom, according to a radius of curvature corresponding to that of the cutter used for machining the stator bottom, and sealing and plating lips. against the rectilinear zones of the stator bottom, a flat contact part of these lips and a cylindrical contact generator of the base being in the same plane, clearances being provided between the opposite ramps of each recess.
  • the purpose of the lips is to cause the sealing and the veneering of the pallet in the flat and active areas of the stator.
  • the base of the pallet corresponding to the geometry of the stator, it is no longer necessary to produce a trapezoidal pallet body.
  • the parallelepiped shape facilitates the production of pallets and housings in the rotor.
  • a pallet 1 in the embodiment shown in FIGS. 4 to 6, comprises a base made of material or attached, offering the particularity of presenting, on the one hand, two end lobes 2 cylindrical in shape whose radius of curvature corresponds to that of the milling cutter F used for machining the stator base surface with ramps R and ranges P and, on the other hand, of the lips longitudinal 3, the sole 3A of which is capable of bearing on said areas in order to obtain sealing and plating of the pallet.
  • a generator 4 of the cylindrical end lobes 2 is in the plane corresponding to that of the soles 3A.
  • the lips 3 of the pallet are moreover capable, during the rotor movement, of passing, in whole or in part, in clearances L provided between pairs of ramps R1 or R2.
  • the lips 3 are preferably made of a material having its own elasticity which is used to improve their contact against the active areas of the bottom stator surface. This material can, of course, be natural or synthetic.
  • Each lip has a compensating portion 3B exposed to the pressure of the fluid so that this pressure is exerted substantially perpendicular to the stator surface, thus improving the application of the pallet against the stator surface.
  • each lip is hollowed out with a groove 5 allowing it to be mounted on a corresponding rib 6 of the pallet and has a flange 7 allowing it to be immobilized against the pallet using of a plate 8 (FIG. 6) and of threaded studs 9 of which only one is shown diagrammatically in FIG. 6.
  • each lip 3 has a dovetail rib 10 slid into a corresponding groove 11 provided in the pallet. This mounting dispenses with the fixing plate 8 with threaded stud 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Milling Processes (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Actuator (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
EP81401457A 1980-09-19 1981-09-18 Ensemble palette-fond statorique pour dispositifs hydrauliques rotatifs Expired EP0048673B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81401457T ATE7729T1 (de) 1980-09-19 1981-09-18 Schieber-statorwand-kombination fuer hydraulische drehkolben.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8020208A FR2490747A1 (fr) 1980-09-19 1980-09-19 Ensemble palette-fond statorique pour dispositifs hydrauliques rotatifs
FR8020208 1980-09-19

Publications (2)

Publication Number Publication Date
EP0048673A1 EP0048673A1 (fr) 1982-03-31
EP0048673B1 true EP0048673B1 (fr) 1984-05-30

Family

ID=9246099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401457A Expired EP0048673B1 (fr) 1980-09-19 1981-09-18 Ensemble palette-fond statorique pour dispositifs hydrauliques rotatifs

Country Status (9)

Country Link
US (1) US4425088A (ja)
EP (1) EP0048673B1 (ja)
JP (1) JPS5783688A (ja)
AT (1) ATE7729T1 (ja)
BR (1) BR8105989A (ja)
DE (1) DE3163898D1 (ja)
DK (1) DK415581A (ja)
ES (1) ES505607A0 (ja)
FR (1) FR2490747A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605360B1 (fr) * 1986-10-16 1991-04-12 Sulzer Ag Palette pour composant hydrostatique et composant hydrostatique le comportant
US7479001B2 (en) * 2006-03-03 2009-01-20 Stroganov Alexander A Rotor sliding-vane machine with adaptive rotor
US20100319653A1 (en) * 2009-06-19 2010-12-23 Honeywell International Inc. Reduced friction rotary combustion engine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1553021A1 (de) * 1964-01-02 1969-10-16 Breinlich Dr Richard Fluegelzellenmaschine mit auf ihrem Mittelteil gelagerten Fluegeln

Also Published As

Publication number Publication date
ATE7729T1 (de) 1984-06-15
FR2490747A1 (fr) 1982-03-26
EP0048673A1 (fr) 1982-03-31
ES8206773A1 (es) 1982-08-16
DE3163898D1 (en) 1984-07-05
BR8105989A (pt) 1982-06-08
FR2490747B1 (ja) 1982-12-17
DK415581A (da) 1982-03-20
ES505607A0 (es) 1982-08-16
JPS5783688A (en) 1982-05-25
US4425088A (en) 1984-01-10

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