Frictionless rotary valve
AssigneeHoneywell International Inc.
InventorsAugust Wallmeyer, Christian Lampe-Juergens
Life of this patent
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Abstract
A frictionless rotary valve comprising: a valve body to be connected within a gas meter, the valve body comprising: a seal, fixedly attached near an outlet of the valve body; and a valve disc, having a ball bearing attached to the valve body; and a gear mechanism comprising: a worm wheel engaged with a worm, wherein the worm wheel is attached to a second end of the valve disc; a drive gear connected to the worm, wherein a rotation of the drive gear in a clockwise direction rotates the worm wheel in an anti-clockwise and moves the valve disc in a closed position; a worm wheel stop, for restricting a movement of the worm wheel in the anti-clockwise direction and driving the worm wheel in a vertically upward direction; and a linear guide attached to the worm wheel.
Claims19
A frictionless rotary valve comprising:
- a valve body, to be connected within a gas meter, wherein the valve body comprising:
- an inlet connected to an outlet through a central chamber;
- and
- a seal, fixedly attached near the outlet, along an inner circumference of the valve body;
- a valve disc, having a ball bearing at a first end, wherein the ball bearing is attached to the valve body such that the valve disc is freely rotatable within the valve body;
- and
- a gear mechanism, to control a movement of the valve disc, wherein the gear mechanism comprising:
- a worm wheel engaged with a worm, wherein the worm wheel is attached to a second end of the valve disc;
- a drive gear connected to the worm, wherein a rotation of the drive gear in a clockwise direction rotates the worm wheel in an anti-clockwise direction such that the valve disc attached to the worm wheel moves in a closed position;
- a worm wheel stop, for restricting a movement of the worm wheel in the anti-clockwise direction by driving the worm wheel in a vertically upward direction;
- and
- a linear guide attached to the worm wheel, wherein a distance spring encloses a guide shaft of the linear guide such that a movement of the worm wheel in the vertically upward direction compresses the distance spring,
- wherein during an opening of the valve, the valve disc is moved in a direction of the linear guide and rotated afterward, and wherein in a closing of the valve, the valve disc is rotated and afterward moved in a linear direction to the closed position.
A frictionless rotary valve comprising:
- a valve body, to be connected within a gas pipeline, wherein the valve body comprising:
- an inlet connected to an outlet through a central chamber;
- and
- a seal, fixedly attached near the outlet, along an inner circumference of the valve body;
- a valve disc, having a ball bearing at a first end, wherein the ball bearing is attached to the valve body such that the valve disc is freely rotatable within the valve body;
- and
- a gear mechanism, to control a movement of the valve disc, wherein the gear mechanism comprising:
- a worm wheel engaged with a worm at an angle of 90°, wherein the worm wheel is attached to a second end of the valve disc;
- a drive gear connected to the worm, wherein a rotation of the drive gear in a clockwise direction rotates the worm wheel in an anti-clockwise direction such that the valve disc attached to the worm wheel moves in a closed position;
- a worm wheel stop, for restricting a movement of the worm wheel in the anti-clockwise direction by driving the worm wheel in a vertically upward direction;
- and
- a linear guide attached to the worm wheel, wherein a distance spring encloses a guide shaft of the linear guide such that a movement of the worm wheel in the vertically upward direction compresses the distance spring, wherein in an opening procedure, the valve disc is moved in a direction of the linear guide and then rotated, and wherein in a closing procedure, the valve disc is rotated and then moved linearly toward the closed position.
A method for operating a frictionless rotary valve, the method comprising steps of:
- rotating a drive gear, attached to a worm, in a clockwise direction such that a worm wheel engaged with the worm rotates in an anti-clockwise direction, wherein the rotation of the worm wheel in the anti-clockwise direction moves a valve disc attached to the worm wheel in a closed position,
- wherein for closing, the valve disc will rotate and move upward to the closed position, and wherein for opening, the valve disc will move toward an open position and rotate,
- a step of rotating the drive gear in an anti-clockwise direction such that a distance spring expands and drives the valve disc in a vertically downward direction.
Dependencies are inferred from the claim text.