Hydraulic machine of the gear type

Details Hydraulic machine of the gear type Hydraulic machine of the gear type

F - Mech Eng,Light,Heat,Weapons

04

C

F04C 2/08 (2006.01) F04C 15/00 (2006.01)

Patent

CA 2078956

The machine includes at least one set of two cooperating pinions rotating between two mobile bearing flanges which are mobile in translation in cavities provided in a median casing closed on the two opposite sides thereof by anterior and posterior covers. Each of these two bearing flanges is substantially pressure equilibrated by a suitable sealing system arranged between this bearing flange and the adjacent cover. The bearing flanges supporting the pinions are floatingly mounted inside the median casing, and pressure means are provided to press the bearing flanges against the median casing and cause a differential pressure pressing the bearing flanges against side faces of the pinions.

La machine comporte au moins un jeu de deux pignons coopérants en rotation entre deux butées de roulement mobiles, en translation dans les logements d'un boîtier central dont les deux extrémités opposées sont fermées par un couvercle antérieur et un couvercle postérieur. La pression dans chacune de ces deux butées de roulement est équilibrée par un circuit d'étanchéité établi entre la butée et le couvercle adjacent. Les butées de roulement supportant les pignons sont en flottement à l'intérieur du boîtier central, et un dispositif assure la pression nécessaire pour maintenir les butées en appui contre le boîtier central et créer une pression différentielle qui maintient les butées en appui sur les faces latérales des pignons.

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