4. Internal-combustion engines
  5. Poppet valve operating mechanism
  6. With means for varying timing

Jeffrey M. Pfeiffer

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Detection of valve deactivation failure by monitoring...

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate

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Engine phaser control system using phaser instability...

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate

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Method and apparatus for cleaning an oil control valve for...

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate

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Method and apparatus for controlling a variable valve system...

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate

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Method and apparatus to control a variable valve system

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate

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