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US 7,789,373 B2Granted
Ball poppet valve with contoured control stem
AssigneeKendrion Binder Magnete GmbH
InventorsFlorian Schulz, Gerd Strobel
Life of this patent
Estimating the term…
Abstract
The invention relates to a ball poppet valve having a valve body, a cylindrical valve bore disposed in the valve body, a ball poppet for closing the valve bore and a movable control stem intruding into the valve bore. The control stem acts on the ball poppet, and the control stem has a diameter (d) that at least approximately becomes larger and larger in the direction towards the ball poppet.
Claims20
A ball poppet valve comprising:
- a valve body, a cylindrical valve bore disposed in the valve body, a ball poppet for controllably opening and closing a bore aperture of the valve bore and a movable control stem within the valve bore operable to move the ball poppet, wherein at a distal end the control stem adjacent to the ball poppet the control stem has a diameter that increases defining a continuously tapered surface along a longitudinal axis of the movable control stem in a direction toward the ball poppet, where the distal end of the control stem extends through the bore aperture when the ball poppet valve is in an open position.
A ball poppet valve, comprising:
- a ball poppet;
- a valve body that provides a valve bore having a bore aperture that is controllably opened and closed by the ball poppet;
- and
- a control stem configured and arranged to controllably move along the valve bore, where the control stem comprises a distal end and a proximate end where the distal end is located adjacent to the ball poppet and the control stem includes a first lengthwise segment located at the proximate end and having a fixed diameter and a second lengthwise segment that has a continuously expanding diameter moving lengthwise along the control stem towards the distal end of the control stem adjacent to the ball poppet, where the distal end of the control stem is operable to extend through the bore aperture.
1 more element
A ball poppet valve, comprising:
- a ball poppet;
- a valve body that provides a valve bore having a bore aperture;
- and
- a control stem configured and arranged to controllably move along the co-axial valve bore, where the control stem comprises a distal end and a proximate end where the distal end is affixed to the ball poppet and the control stem includes a first lengthwise segment located at the proximate end having a constant cross sectional area and a second lengthwise segment that has an continuously increasing cross sectional area diameter moving lengthwise along the control stem to the distal end of the control stem, where the distal end of the control stem is operable to extend through the bore aperture.
1 more element
Dependencies are inferred from the claim text.