Rotation linear actuator, linear movement shafts mechanism, the variable valve actuation mechanism and motor with a variable valve

摘要

A linear movement shafts mechanism has a control shaft (35), the linearly movable along an axial direction, and a rotation in a linear actuator (7), which causes that the control shaft (35) is moved linearally. The actuator (7) has a sun shaft (81), for transmitting a linear movement to the control shaft (35) and a converting mechanism comprises (8), which a rotational movement into a linear movement and causes the sun shaft (81) is moved linearally. The linear movement shafts mechanism has a load section but can. If a direction in which the sun shaft (81) of the converting mechanism comprises (8) in the direction of the control shaft (25) is shifted, is defined as a reference direction, the load section but can, that a compressive load, which acts in the reference direction, on the sun shaft (81) of the control shaft (35) acts.