SBS Piston Pump Housing Assembly

摘要

A housing assembly for a side-by-side (SBS) piston pump may define a pump cavity enclosing first and second piston pumps having parallel longitudinal axes. The housing assembly may include a shroud partially or wholly separating the piston pumps to substantially reduce churning of lubricating fluid flow flowing around the piston pumps and pooling in a fluid intersection area between the piston pumps. The shroud may be a planar shroud plate extending between the piston pumps, or a curved shroud plate between the piston pumps and having sections partially encircling each of the piston pumps. The shroud may alternatively be first and second shroud portions extending inwardly from the cavity walls and directing the lubricating fluid flows the merge in a combined lubricating fluid flow area.

主权项

1. A housing assembly for a side-by-side (SBS) piston pump having a first piston pump with a first longitudinal axis and a second piston pump having a second longitudinal axis, the housing assembly comprising:
a first end surface; a second end surface disposed opposite the first end surface; a pump cavity surface extending from the first end surface to the second end surface and encircling the first piston pump and the second piston pump so that the first end surface, the second end surface and the pump cavity surface define a pump cavity in which the first piston pump and the second piston pump are contained, wherein the pump cavity surface includes a first side portion and a second side portion disposed opposite the first side portion, and wherein the first piston pump and the second piston pump are arranged side-by-side with the first longitudinal axis parallel to the second longitudinal axis; and a shroud plate extending from the first side portion of the pump cavity surface toward the second side portion in a fluid intersection area between the first piston pump and the second piston pump.