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US 12,429,017 B2Granted
Air shut-off valve for an engine
AssigneeDeltaHawk Engines, Inc.
InventorsElijah John Dzurino, Alexander Joeseph Boho
Life of this patent
Estimating the term…
Abstract
An air-shut off valve for an engine is provided to reduce the number of engine cycles that occur if an engine starts in reverse. The air shut-off valve includes a shaft centered on and extending along a longitudinal axis and a valve plate centered on a central axis. The valve plate is mounted on the shaft and positioned such that the central axis and the longitudinal axis do not intersect with each other. The valve plate can be actuated automatically (i.e., through air interfacing with the valve plate) or manually (i.e., by a user) between an opened position and a closed position with respect to the air intake tube.
Claims20
A compression ignition engine, comprising:
- a manifold;
- a tube centered on and extending along a tube axis, a first opening on the tube, and a second opening on the tube opposite the first opening along the tube axis, the second opening coupled to the manifold and configured to provide fluid communication for air between the first opening and the second opening;
- and
- an air shut-off valve, comprising:
- a shaft centered on and extending along a longitudinal axis, the longitudinal axis positioned such that the longitudinal axis and the tube axis do not intersect with each other;
- and
- a valve plate mounted on the shaft and centered on a central axis, the valve plate configured to actuate between an opened position and a closed position with respect to the tube, wherein when in the opened position the central axis intersects the tube axis, and wherein when in the closed position, the central axis is colinear with the tube axis;
- wherein, when air flows through the tube in a first direction, more air interfaces with a first section of the valve plate than a second section of the valve plate to bias the valve plate into the opened position;
- and
- wherein, when air flows through the tube in a second direction opposite the first direction more air interfaces with a third section of the valve plate than a fourth section to bias the valve plate into the closed position;
- and
- wherein, when in the opened position, the valve plate provides greater fluid communication between the first opening and the second opening than when in the closed position.
9 more elements
An air intake system for an engine, comprising:
- an air intake tube comprising:
- a body centered on and extending along an intake axis;
- a first opening on the body;
- and
- a second opening on the body opposite the first opening along the intake axis, the second opening configured to couple to an engine;
- and
- a projection extending away from an outer surface of the body;
- an air shut-off valve, comprising:
- a shaft centered on and extending along a longitudinal axis, the shaft comprising:
- a first section with a key, the first section extending through the projection such that a portion of the first section is positioned within the projection;
- a second section with a keyway, the second section rotatably coupled to the first section;
- and
- a lever coupled to the first section of the shaft and positioned above the projection of the air intake tube;
- and
- a valve plate mounted on the second section of the shaft and centered on a central axis, the valve plate configured to actuate between an opened position and a closed position with respect to the air intake tube;
- wherein, when the valve plate is in the opened position the central axis and the longitudinal axis of the shaft do not intersect with each other, and when in the closed position, the central axis and the longitudinal axis of the shaft do not intersect with each other;
- wherein, when the valve plate is in the opened position the second section of the shaft can rotate with respect to the first section around the longitudinal axis at least 70 degrees;
- and
- wherein the lever is configured to move the valve plate between the opened position and the closed position when a force is applied to the lever;
- and
- wherein, when the valve plate is in the closed position, the key engages the keyway retaining the valve plate in the closed position.
18 more elements
An air intake system for an engine, comprising:
- an air intake tube comprising:
- a body centered on and extending along an intake axis;
- a first opening on the body;
- and
- a second opening on the body opposite the first opening along the intake axis, the second opening configured to couple to an engine;
- and
- an air shut-off valve, comprising:
- a housing positioned exterior to and above the body of the air intake tube, the housing configured to rotate with respect to the body of the air intake tube;
- a shaft extending along a longitudinal axis, a first section of the shaft positioned within the housing;
- a valve plate mounted on a second section of the shaft, the valve plate centered on a central axis and positioned such that the central axis and the longitudinal axis of the shaft do not intersect with each other, the valve plate configured to actuate between an opened position and a closed position with respect to the air intake tube;
- an arm coupled to the first section of the shaft;
- and
- a biasing element located within the housing, the biasing element engaged with the arm and an inner wall of the housing, the biasing element configured to bias the valve plate towards the opened position when the valve plate is not actuated.
10 more elements
Dependencies are inferred from the claim text.