Invention Grant
- Patent Title: Variator lockout valve system
- Patent Title (中): 变速器锁止阀系统
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Application No.: US12943363Application Date: 2010-11-10
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Publication No.: US08744697B2Publication Date: 2014-06-03
- Inventor: Charles F. Long , Darren J. Weber , John William Edward Fuller
- Applicant: Charles F. Long , Darren J. Weber , John William Edward Fuller
- Applicant Address: US IN Indianapolis
- Assignee: Allison Transmission, Inc.
- Current Assignee: Allison Transmission, Inc.
- Current Assignee Address: US IN Indianapolis
- Agency: Barnes & Thornbug LLP
- Main IPC: G06F7/00
- IPC: G06F7/00

Abstract:
A variator lockout valve system for a continuously variable transmission includes a pair of shift valves. Each shift valve has at least one port that is fluidly coupled to a variator of the continuously variable transmission. Electro-hydraulic actuators control the position of each of the shift valves. When the shift valves are in one position, pressure control valves supply fluid pressure to the variator. If one of the shift valves is in another position, one of the pressure control valves is blocked from supplying fluid pressure to the variator.
Public/Granted literature
- US20110144872A1 VARIATOR LOCKOUT VALVE SYSTEM Public/Granted day:2011-06-16
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