Rotary valve and system for duration and phase control
April 8, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2110754 2141428 Rotary valve timing apparatus Non-throttling control apparatus for spark ignition internal combustion engines Adjustable non-throttling control apparatus for spark ignition internal combustion engines Intake system for internal combustion engines Engine intake system Method for postcharging an IC engine of the piston type and an apparatus for performing the method Multicylinder IC engine with a stroke charging device Intake system for internal combustion engines InventorsAssigneeApplicationNo. 681596 filed on 04/08/1991US Classes:123/337, Specific throttle valve structure123/190.2, Single function, (i.e., exhaust and intake by separate tube)123/405By engine operated valveExaminersPrimary: Wolfe, Willis R.Attorney, Agent or FirmForeign Patent References
International ClassesF01L 007/02F02D 009/16 AbstractAn internal combustion engine has a stator passage leading to a cylinder. An intake poppet valve is disposed between the cylinder and stator passage, and a rotary valve adjoins the opposite end of the stator passage. The rotary valve has a rotor with an elongated tapered rotor passage partially in registration with the stator passage. The rotor is driven by the crankshaft and is adjustable in phase to vary the time of opening and closing of the rotary valve, and is axially shiftable to vary the valve opening duration. A control system responsive to engine speed and load independently varies the rotary valve phase and duration for optimum engine operation.Field of SearchADDITIONAL AIR SUPPLYRotary valve is perpendicular to cylinder With means for varying timing Having plural throttle valve structure Specific throttle valve structure Charge volume varying (e.g., total amount of mixture fed to engine is varied; relative amounts of air and fuel are fixed) By engine operated valve | |
