Patent · US Active

Fluid pump

US8162632B2 · kind B2 · utility

4Cited by

13References

13Claims

0Family size

Assignee

BRP US Inc. · US

Inventors

Devlin Hunt · Shoreview, US
John Feuerstein · Racine, US
Tony Urbanik · Kenosha, US

Key dates

Filing date	Oct 31, 2007
Grant date	Apr 24, 2012
Priority date	—
Expiry date	Feb 22, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B1/1071
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A pump is disclosed, having a pumping chamber in the rotor. The rotor is rotatable between first, second, third and fourth positions. When the rotor is in the first position, an inlet cam assembly displaces a piston to draw fluid into the pumping chamber via a first housing inlet. When the rotor is in the second position, an outlet cam assembly displaces the piston to expel fluid out of the pumping chamber via a first housing outlet. When the rotor is in the third position, the inlet cam lobe assembly displaces the piston to draw fluid into the pumping chamber via a second housing inlet. When the rotor is in the fourth position, the outlet cam assembly displaces the piston to expel fluid out of the pumping chamber via a second housing outlet. A method of pumping fluid is also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.