Rotary-to-linear actuator, linear motion shaft mechanism,...

Details Rotary-to-linear actuator, linear motion shaft mechanism,... Rotary-to-linear actuator, linear motion shaft mechanism,...

2006-11-01

2009-06-02

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S345000, C123S090310

Reexamination Certificate

active

07540266

ABSTRACT:
A linear motion shaft mechanism having a control shaft35linearly movable along an axial direction and a rotary-to-linear actuator7causing the control shaft35to move linearly. The actuator7includes a sun shaft81for transmitting linear motion to the control shaft35, and a conversion mechanism8that converts rotational motion to linear motion and causes the sun shaft81to move linearly. The linear motion shaft mechanism includes a load applying portion. When a direction in which the sun shaft81is displaced from the conversion mechanism8toward the control shaft35is defined as a reference direction, the load applying portion causes a thrust load acting in the reference direction to act on the sun shaft81from the control shaft35.

REFERENCES:
patent: 7100553 (2006-09-01), Suzuki et al.
patent: 7424872 (2008-09-01), Fuwa et al.
patent: A 10-196757 (1998-07-01), None
patent: A 2001-263015 (2001-09-01), None
patent: A 2003-041977 (2003-02-01), None

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