Pneumatic immersion lubricant pump
AssigneeDROPSA S.p.A.
InventorWalter Divisi
Life of this patent
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Abstract
A pneumatic immersion lubricant pump, including a primary piston sliding in a sealed manner in contrast to at least one spring inside a cylindrical body together with which the primary piston defines a chamber provided on an opposite side of the primary piston with respect to that where the at least one spring is positioned, a body of the pump including at least one channel in which an element projecting from the primary piston is slidably housed in a sealed manner. The body of the pump including a plurality of cylinders each equipped with a loading port open on the outside of the pump body. Each cylinder housing a secondary piston axially constrained to the primary piston. The projecting element and the channel defining a pressurization duct of the chamber.
Claims19
A pneumatic immersion lubricant pump, comprising
- a primary piston sliding in a sealed manner, in contrast to at least one spring, inside a cylindrical body together with which said primary piston defines a chamber provided on an opposite side of the primary piston with respect to that where said at least one spring is positioned,
- a body of the pump comprising at least one channel in which an element projecting from the primary piston is slidably housed in a sealed manner, the body of the pump comprising a plurality of cylinders each equipped with a loading port open on the outside of the pump body,
- each cylinder housing a secondary piston axially constrained to the primary piston,
- the projecting element and the channel defining a pressurization duct of the chamber.
Dependencies are inferred from the claim text.