Invention Grant
- Patent Title: Hydraulic circuit for a power transmission device
- Patent Title (中): 动力传动装置液压回路
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Application No.: US12689295Application Date: 2010-01-19
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Publication No.: US08640452B2Publication Date: 2014-02-04
- Inventor: John C. Schultz , Norman Schoenek , Kevin Michael Dougan , Edwin T. Grochowski , Daryl A Wilton , Edward W. Mellet
- Applicant: John C. Schultz , Norman Schoenek , Kevin Michael Dougan , Edwin T. Grochowski , Daryl A Wilton , Edward W. Mellet
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F04B49/00
- IPC: F04B49/00

Abstract:
A hydraulic fluid circuit for a power transmission device includes a first hydraulic circuit segment fluidly decoupled from a second hydraulic circuit segment. A hydraulic pump includes a first fluidic pumping element and a second fluidic pumping element. The first fluidic pumping element fluidly communicates with the first hydraulic circuit segment. The second fluidic pumping element fluidly communicates with the second hydraulic circuit segment. The first fluidic pumping element is controllable to a first pump operating point to achieve a preferred high fluidic flow rate in the first hydraulic circuit segment. The second fluidic pumping element is controllable to a second pump operating point to achieve a preferred high fluidic pressure in the second hydraulic circuit segment.
Public/Granted literature
- US20110176932A1 HYDRAULIC CIRCUIT FOR A POWER TRANSMISSION DEVICE Public/Granted day:2011-07-21
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