Manifolded multiple hydraulic pump structure

Details Manifolded multiple hydraulic pump structure Manifolded multiple hydraulic pump structure

F - Mech Eng,Light,Heat,Weapons

04

B

103/22, 138/8

F04B 23/04 (2006.01)

Patent

CA 1113306

Manifolded Multiple Hydraulic Pump Structure Abstract An improved hydraulic pump structure for hydraulic systems which require a plurality of rotary pumps has a pump casing assembly consisting of a plurality of pump casing elements which are fastened together in abutting relationship to define a first pump cavity and a second pump cavity with aligned drive shaft holes and a drive shaft which is journalled in the holes and carries a rotary pump member in each cavity. The casing elements are manifolded to provide a first fluid inlet passage, a first fluid delivery passage which terminates in a port in a fluid delivery end plate, a second fluid inlet passage which has an entrance opening in the fluid delivery end plate, and a second fluid outlet passage which terminates in a port in the fluid delivery end plate. There may be two subassemblies with two pumps in each, secured together in face abutting relationship with an axially interengaged driving connection between drive shaft segments in the two subassemblies and with fluid delivery passages extending from one assembly through the other.

336558

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