Title:
DUAL DRIVE VANE PUMP
Document Type and Number:
WIPO Patent Application WO/2021/229336
Kind Code:
A1
Abstract:
A fluid pumping system for a vehicle having an internal combustion engine comprises a housing, an electric motor, a rotatable first input adapted to be driven by the internal combustion engine, a rotatable second input driven by the electric motor, and a pump. The pump includes a drum selectively rotated about a drum axis of rotation by one of the first input and the second input, and a pump rotor selectively rotated by the other of the first input and the second input. The drum includes a cam ring having a cavity in receipt of the pump rotor. The drum includes a first fluid inlet port and a second fluid inlet port on opposite sides of the drum such that fluid entering the cavity through the first and second fluid ports flows axially in a direction parallel to the drum axis of rotation. The drum includes a radially extending outlet port such that pumped fluid flows radially out of the cavity. The housing contains the electric motor and the pump.
Inventors:
WILLIAMSON MATTHEW (CA)
Application Number:
PCT/IB2021/053433
Publication Date:
November 18, 2021
Filing Date:
April 27, 2021
Export Citation:
Assignee:
HANON SYSTEMS EFP CANADA LTD (CA)
International Classes:
F04C2/324; B60K25/02; F01M1/02; F16N13/20
Foreign References:
| US6874996B2 | 2005-04-05 | |||
| US20130336808A1 | 2013-12-19 | |||
| CA2766452A1 | 2010-12-16 | |||
| US8978600B2 | 2015-03-17 |
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