JP2007071056A5 - - Google Patents

Claims (9)

A valve timing adjustment device for an internal combustion engine that adjusts the valve timing of at least one of an intake valve and an exhaust valve whose camshaft opens and closes by torque transmission from a crankshaft,
A first rotating body having an introduction hole for introducing a lubricating fluid therein, and rotating in conjunction with one of the crankshaft and the camshaft;
A second rotating body that rotates in conjunction with the other of the crankshaft and the camshaft;
An internal gear provided on at least one of the first rotating body and the second rotating body;
A planetary gear that changes a relative rotational phase between the first rotating body and the second rotating body by performing planetary movement while meshing with the internal gear portion;
A planetary frame that supports the planetary gear so as to rotate freely from an inner peripheral side, and rotates in the revolution direction of the planetary gear;
With
Before Symbol introduction hole, and a guide portion in which the lubricating fluid for guiding the lubricating fluid towards the outer periphery of the planet carrier and the throttle portion throttling the flow area of the distribution,
The throttle section, a valve timing control device comprising a flat elongated shape der Rukoto that communicates supply hole and said guide portion for supplying lubricating fluid from said camshaft to said first rotary member. 2. The valve timing adjusting device according to claim 1, wherein the planetary frame is formed in a cylindrical shape. Before Symbol introduction hole, the valve timing controller according to claim 1 or 2, characterized in that it is plurality in the circumferential direction of the internal gear. The valve timing adjusting device according to any one of claims 1 to 3, wherein the lubricating fluid is a lubricating fluid for the internal combustion engine. The valve timing adjusting device according to any one of claims 1 to 4, wherein the lubricating fluid is discharged to the outside from the side opposite to the introduction hole with the planetary gear interposed therebetween . The first rotating body has a first internal gear portion as the internal gear portion,
The second rotating body has a second internal gear portion as the internal gear portion located in an axial direction shifted from the first internal gear portion,
The planetary gear has a first external gear portion and a second external gear portion, and the first external gear portion and the second external gear portion mesh with the first internal gear portion and the second internal gear portion, respectively. The valve timing adjusting device according to any one of claims 1 to 5 , wherein the relative rotational phase is changed by performing a planetary motion integrally . The first rotating body rotating in conjunction with the camshaft engages the planetary gear;
The second rotating body that rotates in conjunction with the crankshaft has the internal gear portion, and the planetary gear meshing with the internal gear portion presses the first rotating body in accordance with planetary motion, thereby causing the relative rotation. The valve timing adjusting device according to any one of claims 1 to 6 , wherein a rotation phase changes . The valve timing adjusting device according to any one of claims 1 to 7 , further comprising a control unit that controls rotational torque in the revolving direction applied to the planetary frame . 9. The valve timing adjusting device according to claim 8 , wherein the control unit includes an electric motor that generates the rotational torque .