FR2476762A2 - HYDRAULIC PUMP WITH BIAIS TRAY THAT CAN TURN IN BOTH WAYS - Google Patents

HYDRAULIC PUMP WITH BIAIS TRAY THAT CAN TURN IN BOTH WAYS Download PDF

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Publication number
FR2476762A2
FR2476762A2 FR8003933A FR8003933A FR2476762A2 FR 2476762 A2 FR2476762 A2 FR 2476762A2 FR 8003933 A FR8003933 A FR 8003933A FR 8003933 A FR8003933 A FR 8003933A FR 2476762 A2 FR2476762 A2 FR 2476762A2
Authority
FR
France
Prior art keywords
plate
bias
pump according
hydraulic pump
grooves
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.)
Granted
Application number
FR8003933A
Other languages
French (fr)
Other versions
FR2476762B2 (en
Inventor
Louis-Claude Porel
Porel Louis-Claude
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.)
Leduc & Fils Rene
Original Assignee
Leduc & Fils Rene
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 Leduc & Fils Rene filed Critical Leduc & Fils Rene
Priority to FR8003933A priority Critical patent/FR2476762A2/en
Priority to DE19803049538 priority patent/DE3049538A1/en
Priority to CH48781A priority patent/CH641528A5/en
Priority to ES1981256231U priority patent/ES256231Y/en
Priority to SE8101122A priority patent/SE444467B/en
Priority to YU00426/81A priority patent/YU42681A/en
Priority to BE2/59022A priority patent/BE887598A/en
Priority to IT19870/81A priority patent/IT1135551B/en
Publication of FR2476762A2 publication Critical patent/FR2476762A2/en
Application granted granted Critical
Publication of FR2476762B2 publication Critical patent/FR2476762B2/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/005—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 changing the phase relationship of two working pistons in one working chamber or the phase-relationship of a piston and a driven distribution member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/146—Swash plates; Actuating elements

Landscapes

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

Abstract

The pump comprises a plate (10) fitted with a crescent for supply through it. This plate (10) is rotationally mounted on the skew-plate (6) with the aid of a cylindrical ring (26) placed in a groove (27) made in the skew-plate (6) and in a groove (28) made in the plate (10). A ratchet device made up of a ball (29) held back by a spring (31) and projecting into a groove (32) of the plate (10) locks the plate (10) in its position with respect to the skew-plate (6). With the aid of a screwdriver (33) the ball (29) can be pushed in in order to revolve the plate (10) through 180 DEG into a position in which it is locked again by the ratchet (29, 31). This displacement of the plate allows the pump to be used in the other direction of rotation as well.

Description

Dans la demande de brevet principal déposée le 17 Juin 1977, sous le nO 77-18715, on a décrit une pompe hydraulique à plateau biais, comportant des moyens permettant d'inverser le sens de fonctionnement de la pompe. In the main patent application filed on June 17, 1977, under the No. 77-18715, a hydraulic pump with a bias plate was described, comprising means making it possible to reverse the direction of operation of the pump.

La présente addition a pour objet des perfectionnements à ce dispositif. The present addition relates to improvements to this device.

Il s'est en effet avéré à l'usage, que la plaque d'appui circulaire montée à rotation sur le plateau oscillant, peut tourner accidentellement par rapport à ce dernier. Ceci peut notamment arriver lorsque la pompe est montée sur un camion pour alimenter le circuit hydraulique de la benne . si le moteur thermique fait de l'auto-allumage lors de l'arfêt, ou si le conducteur inverse brutalement le sens de marche pour vider la benne, il peut arriver que le sens de rotation de l'arbre de la pompe s'inverse momentanément et que la plaque intermédiaire retenue par la pression exercée sur lui par les pistons en charge tourne par rapport au plateau biais, ce qui inverse le cycle d'admission du fluide; lorsque la pompe est remise en marche dans le bon sens elle ne donne alors plus aucun débit. It has indeed been found in use, that the circular support plate rotatably mounted on the swash plate, can accidentally rotate relative to the latter. This can happen in particular when the pump is mounted on a truck to supply the hydraulic circuit of the bucket. if the engine self-ignites during stop, or if the driver suddenly reverses the direction of travel to empty the bucket, it may happen that the direction of rotation of the pump shaft reverses momentarily and the intermediate plate retained by the pressure exerted on it by the pistons under load rotates relative to the bias plate, which reverses the fluid intake cycle; when the pump is restarted in the right direction, it no longer gives any flow.

Selon un premier objet de la présente addition, le plateau biais et la plaque intermédiaire sont pourvus d'un moyen de verrouillage. According to a first object of the present addition, the bias plate and the intermediate plate are provided with a locking means.

D' autre part, dans la pompe décrite au brevet principal, la plaque intermédiaire est montée à rotation sur le plateau biais par l'intermédiaire d'un arbre creux communiquant avec un trou borgne central améliorant l'alimentation des pistons. On the other hand, in the pump described in the main patent, the intermediate plate is rotatably mounted on the bias plate by means of a hollow shaft communicating with a central blind hole improving the supply of the pistons.

Selon un deuxième objet de la présente addition, la plaque intermédiaire est montée à rotation sur le plateau biais par l'intermédiaire d'une couronne cylindrique, ce qui facilite l'alimentation. According to a second object of the present addition, the intermediate plate is rotatably mounted on the bias plate by means of a cylindrical crown, which facilitates feeding.

A titre d'exemple non limitatif et afin de faciliter la compréhension de l'invention, on a représenté aux dessins annexés
Figure 1, une vue partielle en coupe longitudinale d'une pompe selon la présente addition.By way of nonlimiting example and in order to facilitate the understanding of the invention, there is shown in the accompanying drawings
Figure 1, a partial view in longitudinal section of a pump according to this addition.

Figure 2, une vue partielle selon la flèche F, de la figure 1.  Figure 2, a partial view along arrow F, of Figure 1.

Figure 3, une vue de détail de la figure 1, illustrant une variante de réalisation. Figure 3, a detail view of Figure 1, illustrating an alternative embodiment.

En se reportant à ces figures, dans lesquelles les éléments identiques à ceux décrits au brevet principal portent les mêmes références, on voit que la plaque intermédiaire 10, à travers laquelle est gravée la lunule d'alimentation 12 sur laquelle passent les plots 4, est montée à rotation sur le pla teau biais 6, par l'intermédiaire d'une couronne cylindrique 26, qui est placée dans deux gorges 27 et 28 gravées, l'une dans la face 5 du plateau biais 6 et l'autre dans la face arrière lOb de la plaque 10-, ces deux gorges et la couronne ayant un diamètre légèrement inférieur à celui du plateau 6. Referring to these figures, in which the elements identical to those described in the main patent bear the same references, it can be seen that the intermediate plate 10, through which is engraved the supply lunula 12 over which the studs 4 pass, is rotatably mounted on the bias plate 6, by means of a cylindrical crown 26, which is placed in two grooves 27 and 28 engraved, one in the face 5 of the bias plate 6 and the other in the face rear lOb of the plate 10-, these two grooves and the crown having a diameter slightly smaller than that of the plate 6.

D'autre part, le plateau biais 6 comporte un cliquet de verrouillage constitué par une bille 29 (ou un doigt 30, figure 3) contretenue par un ressort 31 et venant faire saillie dans une rainure 32, gravée sur la face arrière lOb de la plaque 10. On the other hand, the bias plate 6 comprises a locking pawl constituted by a ball 29 (or a finger 30, FIG. 3) constrained by a spring 31 and coming to protrude in a groove 32, engraved on the rear face 10b of the plate 10.

Cette rainure peut avoir une largeur pratiquement égale à celle de la bille 29 ou du doigt 30, mais elle peut, comme cela est représenté, avoir une largeur suffisante pour qu'il soit possible d'y introduire la pointe d'un tourne-vis 33, afin d'enfoncer la bille 29 (ou le doigt 30) et de faire tourner la plaque 10 de 18O0.Là plaque 10 comporte deux rainures 32, disposées à un peu moins de 1800 de façon quelles puisse être verrouillées en deux positions symétriques 11 une de l'autre par rapport à la ligne de plus grande pente du plateau biais. This groove may have a width practically equal to that of the ball 29 or of the finger 30, but it may, as shown, have a width sufficient for it to be possible to introduce the point of a screwdriver therein. 33, in order to insert the ball 29 (or the finger 30) and to rotate the plate 10 by 180 °. The plate 10 has two grooves 32, arranged at slightly less than 1800 so that they can be locked in two symmetrical positions 11 from each other with respect to the line of greatest slope of the bias plate.

Claims (4)

REVENDICATIONS 1. Pompe hydraulique selon le brevet principal, caractérisée par le fait que la plaque d'appui circulaire (10) comportant la lunule d'alimentation (12) est munie de moyens (29, 30, 32) permettant de la verrouiller au plateau biais (6) en deux positions symétriques par rapport à la ligne de plus grande pente dudit plateau biais. 1. Hydraulic pump according to the main patent, characterized in that the circular support plate (10) comprising the supply lunula (12) is provided with means (29, 30, 32) allowing it to be locked to the bias plate (6) in two symmetrical positions with respect to the line of greatest slope of said bias plate. 2. Pompe selon la revendication 1, dans laquelle les moyens de verrouillage sont constitués par une bille (29), ou un doigt (30) porté par le plateau biais, contretenu par un ressort (31) et faisant saillie à la surface dudit plateau, venant s'engager dans l'une ou l'autre de deux rainures (32) creusées dans la face arrière (1Ob) de la plaque intermédiaire d'appui (10). 2. Pump according to claim 1, in which the locking means are constituted by a ball (29), or a finger (30) carried by the bias plate, counter-retained by a spring (31) and projecting from the surface of said plate. , coming to engage in one or the other of two grooves (32) hollowed out in the rear face (10b) of the intermediate support plate (10). 3. Pompe selon la revendication 2, dans laquelle les deux rainures (32) sont disposées à la face arriere(lOb) de la plaque (10) à un peu moins de 1800, de façon que ladite plaque (10) soit verrouillée en deux positions pour lesquelles la lunule (12) occupe deux positions symétriques par rapport à la ligne de plus grande pente du plateau biais (6). 3. Pump according to claim 2, wherein the two grooves (32) are arranged at the rear face (10b) of the plate (10) at slightly less than 1800, so that said plate (10) is locked in two positions for which the lunula (12) occupies two symmetrical positions with respect to the line of greatest slope of the bias plate (6). 4. Pompe selon l'une quelconque des revendications 1 à 3, dans laquelle la plaque (10)est montée à rotation sur le plateau biais (6), par l'intermédisire d'une couronne cylindrique (26) s'engageant dans deux gorges correspondantes (27 et 28) creusées respectivement dans le face (5) du plateau biais (6) et la face arrière (10b) de la plaque (10).  4. Pump according to any one of claims 1 to 3, wherein the plate (10) is rotatably mounted on the bias plate (6), by means of a cylindrical crown (26) engaging in two corresponding grooves (27 and 28) hollowed respectively in the face (5) of the bias plate (6) and the rear face (10b) of the plate (10).
FR8003933A 1980-02-22 1980-02-22 HYDRAULIC PUMP WITH BIAIS TRAY THAT CAN TURN IN BOTH WAYS Granted FR2476762A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR8003933A FR2476762A2 (en) 1980-02-22 1980-02-22 HYDRAULIC PUMP WITH BIAIS TRAY THAT CAN TURN IN BOTH WAYS
DE19803049538 DE3049538A1 (en) 1980-02-22 1980-12-31 SWASH DISC PUMP
CH48781A CH641528A5 (en) 1980-02-22 1981-01-26 Hydraulic pump with a skew-plate which can revolve in both directions
ES1981256231U ES256231Y (en) 1980-02-22 1981-02-16 HYDRAULIC PUMP WITH OBLIQUE CYLINDER THAT CAN ROTATE IN THE TWO SENSES
SE8101122A SE444467B (en) 1980-02-22 1981-02-19 HYDRAULIC PUMP WITH SLEEPED PLATE AND TWO DIRECTIONS
YU00426/81A YU42681A (en) 1980-02-22 1981-02-20 Hydraulic pump with a tilted disc turnable in both directions
BE2/59022A BE887598A (en) 1980-02-22 1981-02-20 HYDRAULIC PUMP WITH BIAIS TRAY THAT CAN TURN IN BOTH WAYS
IT19870/81A IT1135551B (en) 1980-02-22 1981-02-20 INCLINED PLATE HYDRAULIC PUMP WITH THE POSSIBILITY OF ROTATING IN TWO WAYS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8003933A FR2476762A2 (en) 1980-02-22 1980-02-22 HYDRAULIC PUMP WITH BIAIS TRAY THAT CAN TURN IN BOTH WAYS

Publications (2)

Publication Number Publication Date
FR2476762A2 true FR2476762A2 (en) 1981-08-28
FR2476762B2 FR2476762B2 (en) 1985-02-15

Family

ID=9238869

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8003933A Granted FR2476762A2 (en) 1980-02-22 1980-02-22 HYDRAULIC PUMP WITH BIAIS TRAY THAT CAN TURN IN BOTH WAYS

Country Status (8)

Country Link
BE (1) BE887598A (en)
CH (1) CH641528A5 (en)
DE (1) DE3049538A1 (en)
ES (1) ES256231Y (en)
FR (1) FR2476762A2 (en)
IT (1) IT1135551B (en)
SE (1) SE444467B (en)
YU (1) YU42681A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837241A3 (en) * 1996-10-21 1998-07-22 Brueninghaus Hydromatik Gmbh Axial piston pump with adjustable control plate

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3743125A1 (en) * 1987-12-18 1989-07-06 Brueninghaus Hydraulik Gmbh AXIAL PISTON PUMP
KR930018156A (en) * 1992-02-10 1993-09-21 도요다 요시또시 Reciprocating Compressor
JPH09112408A (en) * 1995-10-19 1997-05-02 Hitachi Ltd Fuel pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1055959B (en) * 1957-08-31 1959-04-23 Bosch Gmbh Robert Pump with reciprocating plungers
FR1256064A (en) * 1960-02-03 1961-03-17 Hispano Suiza Lallemant Soc Improvements made to piston machines, in particular to pumps, of the barrel type
US3172368A (en) * 1958-07-24 1965-03-09 William H Mashiater Pump

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394692A1 (en) * 1977-06-17 1979-01-12 Leduc & Fils Rene Reversible swashplate hydraulic pump - has two-position port plate between swashplate and pistons to reverse direction of rotation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1055959B (en) * 1957-08-31 1959-04-23 Bosch Gmbh Robert Pump with reciprocating plungers
US3172368A (en) * 1958-07-24 1965-03-09 William H Mashiater Pump
FR1256064A (en) * 1960-02-03 1961-03-17 Hispano Suiza Lallemant Soc Improvements made to piston machines, in particular to pumps, of the barrel type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837241A3 (en) * 1996-10-21 1998-07-22 Brueninghaus Hydromatik Gmbh Axial piston pump with adjustable control plate

Also Published As

Publication number Publication date
SE8101122L (en) 1981-08-23
YU42681A (en) 1983-12-31
FR2476762B2 (en) 1985-02-15
ES256231Y (en) 1982-06-01
DE3049538C2 (en) 1988-02-04
SE444467B (en) 1986-04-14
ES256231U (en) 1981-12-16
IT1135551B (en) 1986-08-27
IT8119870A0 (en) 1981-02-20
BE887598A (en) 1981-06-15
CH641528A5 (en) 1984-02-29
DE3049538A1 (en) 1981-09-10

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