Patents Represented by Attorney Sughrue Mion, PIAC

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  • Valve timing adjusting device
    Patent number: 7146946
    Abstract: A valve timing adjusting device includes a first rotor that rotates synchronously with a crankshaft of an engine; a second rotor that is relatively rotatable by a predetermined angle within the first rotor, and is secured on the end face of an intake or an exhaust camshaft; and a tension spring that acts as an assisting spring for adjusting a relative position between both the rotors.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: December 12, 2006
    Assignee: Mitsubishiki Denki Kabushiki Kaisha
    Inventors: Koji Yudate, Hiroyuki Kinugawa, Akira Sakata, Makoto Yamauchi