Control screw
AssigneeDellphi Automotive Systems Luxembourg SA
InventorsEric BOURNICHE, Marc CIPRIANO, Lucas GIAMBRONE
Life of this patent
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Abstract
A control screw for a camshaft phase shifter of an internal combustion engine extends along a longitudinal axis. The control screw includes a screw body. The control screw also includes a tubular spool assembly having a control valve assembly with at least three rigid rings and at least two valves. Each valve includes at least one vane connected to two flexible arms. The valve is connected to two consecutive rigid rings.
Claims5
1-6. (canceled)
A control valve assembly arranged in a tubular slide valve assembly, the control valve assembly comprising:
- at least three rigid rings;
- and
- at least two valves;
- wherein each of said at least two valves comprises at least one blade connected to two respective flexible arms, and each of said at least two valves is connected to two consecutive rigid rings of said at least three rigid rings.
A control screw for a camshaft phaser of an internal combustion engine, the control screw comprising:
- a screw body;
- a slide valve assembly within the screw body;
- and
- a control valve assembly arranged in the slide valve assembly, the control valve assembly comprising:
- at least three rigid rings;
- and
- at least two valves;
- wherein each of said at least two valves comprises at least one blade connected to two respective flexible arms, and each of said at least two valves is connected to two consecutive rigid rings of said at least three rigid rings.
Dependencies are inferred from the claim text.