Valve for continuous hydraulic damping force regulation
AssigneeAstemo, Ltd.
InventorParamesh CHINTALA
Life of this patent
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Abstract
Examples include a valve having a valve body with a central axis. A valve face is disposed on a first end of the valve body, the valve face including an outer surface and an inner surface that meet at an apex at which a circular valve seating surface is disposed. The inner surface is shaped as a first truncated cone converging in a first direction toward the valve body and the outer surface is shaped as a second truncated cone converging in a second direction away from the valve body. The inner surface has a first angle relative to the central axis and the outer surface has a second angle relative to a line extending from a circumference of the valve body and parallel to the central axis. The first angle of the inner surface is greater than the second angle of the outer surface.
Claims20
A valve apparatus comprising:
- a valve including a valve body having a central axis, a valve face disposed on a first end of the valve body, the valve face including an outer surface and an inner surface that meet at an apex at which a circular valve seating surface is disposed, the inner surface shaped as a first truncated cone converging in a first direction toward the valve body and the outer surface shaped as a second truncated cone converging in a second direction away from the valve body, the inner surface having a first angle relative to the central axis, the outer surface having a second angle relative to a line extending from a circumference of the valve body and parallel to the central axis, wherein the first angle of the inner surface is greater than the second angle of the outer surface;
- and
- a pilot body having a fluid flow passage opening with a valve seat surrounding the fluid flow passage opening, the circular valve seating surface of the valve configured to contact the valve seat in a first position for forming a seal to prevent passage of fluid between the circular valve seating surface and the valve seat, the valve movable from the first position to a second position to enable passage of fluid between the circular valve seating surface and the valve seat.
A damper comprising:
- an inner tube with a piston and piston rod configured to reciprocate within the inner tube;
- an outer tube disposed around the inner tube;
- a hydraulic control valve in fluid communication with an interior of the outer tube for receiving fluid from the damper and returning fluid to the damper;
- a valve disposed in the hydraulic control valve, the valve including a valve face having an outer surface and an inner surface that meet at an apex at which a circular valve seating surface is disposed, the inner surface shaped as a first truncated cone converging in a first direction toward the valve body and the outer surface shaped as a second truncated cone converging in a second direction away from the valve body, the inner surface having a first angle relative to the central axis, the outer surface having a second angle relative to a line extending from a circumference of the valve body and parallel to the central axis, wherein the first angle of the inner surface is greater than the second angle of the outer surface;
- and
- a pilot body disposed in the hydraulic control valve, the pilot body having a fluid flow passage opening with a valve seat surrounding the fluid flow passage opening, the circular valve seating surface configured to contact the valve seat in a first position for forming a seal to prevent passage of fluid between the circular valve seating surface and the valve seat, the valve movable from the first position to a second position to enable passage of fluid between the circular valve seating surface and the valve seat.
A valve apparatus for forming a seal with a valve seat disposed around a periphery of a fluid flow passage, the valve apparatus comprising:
- a valve including a valve body having a central axis, a valve face disposed on a first end of the valve body, the valve face including an outer surface and an inner surface with a circular valve seating surface disposed between the inner surface and the outer surface, the inner surface shaped as a first truncated cone converging in a first direction toward the valve body and the outer surface shaped as a second truncated cone converging in a second direction away from the valve body, the inner surface having a first angle relative to the central axis, the outer surface having a second angle relative to a line extending from an exterior of the valve body and parallel to the central axis, wherein the first angle of the inner surface is greater than the second angle of the outer surface, the circular valve seating surface disposed for forming the seal with the valve seat.
Dependencies are inferred from the claim text.