Valve opening/closing timing control apparatus
First Claim
1. A valve opening/closing timing control apparatus comprising:
- a driving side rotator configured to rotate synchronously with a crankshaft of an internal combustion engine;
a driven side rotator disposed coaxially with a rotation axis of the driving side rotator so as to rotate integrally with a valve opening and closing camshaft;
a connecting bolt disposed coaxially with the rotation axis to connect the driven side rotator to the camshaft and having an advanced angle port and a retarded angle port formed to extend from an outer peripheral surface to an inner space thereof, which respectively communicate with an advanced angle chamber and a retarded angle chamber between the driving side rotator and the driven side rotator; and
a valve unit disposed in the inner space of the connecting bolt,wherein the valve unit includes a check valve on an upstream side in a fluid supply direction with respect to a base end portion thereof,the check valve includes an opening plate having an opening around the rotation axis in a posture orthogonal to the rotation axis and a valve plate having a valve body configured to close the opening on a downstream side than the opening plate, andthe valve plate is configured by integrally forming the valve body, an annular portion at an outer peripheral position, and a spring portion that interconnects the valve body and the annular portion with one another.
1 Assignment
0 Petitions
Accused Products
Abstract
A valve opening/closing timing control apparatus includes: a driving side rotator configured to rotate synchronously with a crankshaft of an internal combustion engine; a driven side rotator disposed coaxially with a rotation axis of the driving side rotator so as to rotate integrally with a valve opening and closing camshaft; a connecting bolt disposed coaxially with the rotation axis to connect the driven side rotator to the camshaft and having an advanced angle port and a retarded angle port formed to extend from an outer peripheral surface to an inner space thereof, which respectively communicate with an advanced angle chamber and a retarded angle chamber between the driving side rotator and the driven side rotator; and a valve unit disposed in the inner space of the connecting bolt, in which the valve unit includes a check valve, and the check valve includes an opening plate and a valve plate.
6 Citations
14 Claims
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1. A valve opening/closing timing control apparatus comprising:
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a driving side rotator configured to rotate synchronously with a crankshaft of an internal combustion engine; a driven side rotator disposed coaxially with a rotation axis of the driving side rotator so as to rotate integrally with a valve opening and closing camshaft; a connecting bolt disposed coaxially with the rotation axis to connect the driven side rotator to the camshaft and having an advanced angle port and a retarded angle port formed to extend from an outer peripheral surface to an inner space thereof, which respectively communicate with an advanced angle chamber and a retarded angle chamber between the driving side rotator and the driven side rotator; and a valve unit disposed in the inner space of the connecting bolt, wherein the valve unit includes a check valve on an upstream side in a fluid supply direction with respect to a base end portion thereof, the check valve includes an opening plate having an opening around the rotation axis in a posture orthogonal to the rotation axis and a valve plate having a valve body configured to close the opening on a downstream side than the opening plate, and the valve plate is configured by integrally forming the valve body, an annular portion at an outer peripheral position, and a spring portion that interconnects the valve body and the annular portion with one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification