Gas swirling device for internal combustion engine
OwnerTheodore Y. Chenginventor
Life of this patent
Estimating the term…
Abstract
Swirl is imparted to an air intake charge by a gas swirling device which may be inserted into an air intake hose or secured to a throttle body. The gas swirling device has a cylindrical body which is split along a generally longitudinally extending seam to allow the device to adjust its radial dimension. The device is formed from a single piece of bendable material and includes a plurality of swirling vanes which are formed integral with the cylindrical body of material and which are bent radially inwardly toward the central axis of the cylinder. In an embodiment for axial air flow, each of the blades is skewed relative to the axis of the cylinder for changing the direction of air flow through the cylinder and to encourage swirl in the air flow.
Claims24
An air swirling device comprising:
- a flexible sheet material providing a first portion formed as an open round cylinder, and a second portion formed along one peripheral edge of the open cylinder as a plurality of individual blades evenly spaced around a circumference of the open cylinder, the first and second portions being formed integrally and contiguously from the sheet material, each of the blades providing a smoothly and continuously curved radially directed surface primarily positioned inboard of the circumference, and shaped so that air moving axially through the device or radially into the device is caused to rotate;
- wherein each of the blades provides a plurality of linear slots arranged end-to-end to form a weakened section in the sheet material so as to more easily direct the blade into a radial direction.
A combination intake manifold, air filter, and air swirling device, the combination comprising:
- a flexible sheet material providing a first portion formed as an open round cylinder, and a second portion formed along one peripheral edge of the open cylinder as a plurality of individual blades evenly spaced around a circumference of the open cylinder, the first and second portions being formed integrally and contiguously from the sheet material, each of the blades providing a smoothly and continuously curved radially directed surface primarily positioned inboard of the circumference;
- a cylindrically formed air filter positioned concentrically with the open cylinder;
- an intake manifold positioned within the circumference of the open cylinder and adjacent thereto;
- wherein each of the blades provides an edge having an undulating curvature along at least a portion of the edge, the curvature being placed so as to improve the swirling of the air and to dampen noise;
- whereby air moving radially through the air filters passes through the blades of the open cylinder for rotational entry into the intake manifold.
A method of making a gas swirling device for use in an internal combustion engine, the device adapted to be removably insertable into an engine intake air flow path, the method comprising the steps of:
- providing a linear strip of a flexible sheet material;
- cutting a plurality of evenly spaced, Y shaped cuts in a peripheral edge of the strip;
- bending the strip into an open round cylindrical shape;
- forming a plurality of individual blades by bending, each of the blades having a smoothly and continuously curved surface directed generally radially inwardly around a circumference of the open cylinder;
- whereby air moving axially through the device or radially into the device is caused to rotate.
An air swirling device comprising:
- a flexible sheet material providing a first portion formed as an open round cylinder, and a second portion formed along at least one peripheral edge of the open cylinder as a plurality of individual blades evenly spaced around a circumference of the open cylinder, the first and second portions being formed integrally and contiguously from the sheet material, each of the blades providing a smoothly and continuously curved, radially directed surface primarily positioned inboard of the circumference, and shaped so that air moving through the device is caused to move cyclonically with rotational acceleration and mixing;
- wherein each of the directed surfaces is partially split by a plurality of generally parallel slits to form a plurality of terminal fingers, the terminal fingers of each of the directed surfaces being mutually divergent and positioned for directing portions of the air moving through the device in divergent circumferential directions.
The air swirling device comprising:
- a flexible sheet material providing an open exterior cylinder, and integral therewith, a plurality of open interior cylinders, each of the interior cylinders having a peripheral edge comprising a plurality of individual blades evenly spaced around a circumference thereof, the blades formed integrally and contiguously from the sheet material providing a smoothly and continuously curved radially inwardly directed surface and shaped so that air moving axially through the interior cylinders is caused to rotate.
Dependencies are inferred from the claim text.