Title:
【発明の名称】油圧制御吸気/排気弁
Document Type and Number:
Japanese Patent JP2000514895
Kind Code:
A
Abstract:
A camless valve assembly for an internal combustion engine which utilizes a plurality of three position control valves to open and close the intake and exhaust valves of the assembly. Each valve is coupled to a plurality of hydraulically driven pins that move the valve between the open and closed positions. The flow of fluid to the pins is controlled by the three position digitally latched solenoid actuated control valves that can be switched between a first position, a second position and a neutral position. When a control valve is in the first position the fluid flows into the pins and moves the valve. When the control valve is in the second position the fluid can flow away from the pins to allow the valve to move back to the original position. When the control valve is in the neutral position the fluid does not flow so that the valve cannot move. The control valve can be switched by a controller that can move and maintain a valve at any position during any cycle of the engine.
Inventors:
Starman, Odd Yi
Application Number:
JP50612798A
Publication Date:
November 07, 2000
Filing Date:
July 09, 1997
Export Citation:
Assignee:
Starman Industries
International Classes:
F01L1/32; F01L9/10; (IPC1-7): F01L9/02; F01L1/32
Attorney, Agent or Firm:
Masaki Yamakawa (5 outside)