Variable cam phasing device

Details Variable cam phasing device Variable cam phasing device

1992-03-20

1992-12-22

Argenbright, Tony M.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 464 2, F01L 134

Patent

active

051726610

ABSTRACT:
A phase change device of the type wherein a phase change is effected between an input member and an output member in response to the axial movement of an advancing element interconnecting the input member and the output member, and wherein such axial movement is effected by retarding the rotation of a drum member engaged with the advancing element. A grooved thread is formed in the drum member, and a plurality of balls carried in slots formed in the output member are received in the thread and in helical grooves formed in the input member to effect the relative rotation between the input and output members as the balls advance axially along the thread in response to retardation of the drum member.

REFERENCES:
patent: 3685499 (1972-08-01), Meacham et al.
patent: 4513724 (1985-04-01), Kamleitner
patent: 4548182 (1985-10-01), Kamleitner
patent: 4561390 (1985-12-01), Nakamura et al.
patent: 4754727 (1988-07-01), Hampton
patent: 4841924 (1989-06-01), Hampton et al.
patent: 5031585 (1991-07-01), Muir et al.
patent: 5078647 (1992-01-01), Hampton
patent: 5097804 (1992-03-01), Brune et al.

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