Hydraulic pump

F - Mech Eng,Light,Heat,Weapons – 04 – B

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Details

F04B 53/16 (2006.01) F04B 1/14 (2006.01) F04B 53/10 (2006.01)

Patent

CA 2655185

Axial piston hydraulic pump, comprising at least one piston (2), coupled by suitable transmission means (103, 113) to drive means (3) and slidable with a reciprocating motion inside a cylinder (101), the said cylinder (101) communicating with a fluid intake passage (151) and a fluid delivery passage (161, 301), one-way means (121, 501) of controlling the flow of the fluid being provided in both passages; the said delivery passage (301) communicates, downstream of the said one-way flow control means (501), with a constricted flow discharge member (401, 411, 431, 441).

L'invention concerne une pompe hydraulique à pistons axiaux comprenant au moins un piston (2) qui est couplé par un moyen de transmission (103, 113) adapté à un moyen d'entraînement (3) et qui peut coulisser selon un mouvement alternatif à l'intérieur d'un cylindre (101), ledit cylindre (101) communiquant avec un passage d'entrée de fluide (151) et un passage de distribution de fluide (161, 301) à l'intérieur desquels sont placés des moyens unidirectionnels (121, 501) destinés à réguler l'écoulement du fluide; ledit passage de distribution (301) communique, en aval dudit moyen unidirectionnel de régulation d'écoulement (501), avec un élément de décharge à étranglement (401, 411, 431, 441).

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