Variable camshaft timing valve assembly
AssigneeBorgWarner Inc.
InventorsAndrew V. Degner, Brian T. Kenyon, Chad M. McCloy
Life of this patent
Estimating the term…
Abstract
A valve assembly that can be employed in a variable camshaft timing (VCT) phaser assembly. The valve assembly includes a metal sleeve and a check valve. The check valve, in an implementation, has an integral construction with the metal sleeve. The integral construction has multiple designs, one of which includes an overmolded construction of the check valve with the metal sleeve. The valve assembly can also include a valve housing which, in the implementation of the VCT phaser assembly, is a center bolt.
Claims28
A variable camshaft timing (VCT) valve assembly, comprising:
- a metal sleeve extending axially between a pair of ends;
- a check valve having a base, the base located at one of the pair of ends of the metal sleeve, and the base having an integral construction with the one of the pair of ends of the metal sleeve, wherein the base is composed of a plastic material, the integral construction includes an overmolded construction of the base with the metal sleeve;
- a valve housing at least partially enclosing the metal sleeve and the check valve;
- and
- a male-female mating construction between the valve housing and the metal sleeve, the male-female mating construction precluding relative circumferential rotational movement between the valve housing and the metal sleeve.
A valve assembly, comprising:
- a metal sleeve having a bore spanning axially between a first end and a second end;
- a check valve located at one of the first or second ends of the metal sleeve, the check valve having a base, the base being composed of a plastic material;
- an overmolded construction incorporating the plastic material of the base;
- a valve housing at least partially enclosing the metal sleeve and the check valve;
- and
- a male-female mating construction between the valve housing and the metal sleeve, the male-female mating construction precluding relative circumferential rotational movement between the valve housing and the metal sleeve.
A variable camshaft timing (VCT) valve assembly, comprising:
- a metal sleeve having a first end and a second end, and having a ball carried at an exterior of the metal sleeve adjacent the first end;
- a check valve located at the second end of the metal sleeve, the check valve having a base, the base being composed of a plastic material;
- an overmolded construction of the base with the metal sleeve, the overmolded construction including an interlocking groove between the base and the metal sleeve;
- and
- a center bolt at least partially enclosing the metal sleeve and the check valve, the center bolt having a slot residing at an interior thereof, receipt of the ball of the metal sleeve in the slot precluding relative circumferential rotational movement between the center bolt and the metal sleeve.
A variable camshaft timing (VCT) valve assembly, comprising:
- a metal sleeve;
- a spool, received within the metal sleeve, that controls fluid flow through the metal sleeve;
- a check valve located at an end of the metal sleeve;
- a valve housing at least partially enclosing the metal sleeve and the check valve;
- and
- a male-female mating construction between the valve housing and the metal sleeve, the male-female mating construction precluding relative circumferential rotational movement between the valve housing and the metal sleeve.
A variable camshaft timing (VCT) valve assembly, comprising:
- a metal sleeve extending axially between a pair of ends;
- a check valve having a base, the base located at one of the pair of ends of the metal sleeve, and the base having an integral construction with the one of the pair of ends of the metal sleeve;
- and
- a valve housing at least partially enclosing the metal sleeve and the check valve, wherein the metal sleeve has a press-fit structural interface with the valve housing, the press-fit structural interface precluding relative circumferential rotational movement between the valve housing and the metal sleeve.
A variable camshaft timing (VCT) valve assembly, comprising:
- a metal sleeve extending axially between a pair of ends;
- a check valve having a base, the base located at one of the pair of ends of the metal sleeve, and the base having an integral construction with the one of the pair of ends of the metal sleeve;
- a valve housing at least partially enclosing the metal sleeve and the check valve;
- and
- a male-female mating construction between the valve housing and the check valve, the male-female mating construction precluding relative circumferential rotational movement between the valve housing and the check valve.
Dependencies are inferred from the claim text.