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An air induction system for an engine to remove contaminants from intake air prior to delivery to the engine. The system includes a filter formed of a filter media arranged in a generally annular shape for placement around a portion of the engine to receive intake air from an annular region surround

An air induction system for an engine to remove contaminants from intake air prior to delivery to the engine. The system includes a filter formed of a filter media arranged in a generally annular shape for placement around a portion of the engine to receive intake air from an annular region surrounding the engine. A filter mount is engageable with an outer surface of the engine and configured for supporting the filter at an installed position wherein the filter is in spaced relation from the outer surface of the engine. The filter is constructed for easy installation and removal.

대표청구항 ▼

1. An air induction system for an engine to receive intake air from a region generally surrounding the engine, remove contaminants from the intake air, and provide the intake air for delivery to the engine, the engine including a housing having an outer peripheral surface and a longitudinal axis, th

1. An air induction system for an engine to receive intake air from a region generally surrounding the engine, remove contaminants from the intake air, and provide the intake air for delivery to the engine, the engine including a housing having an outer peripheral surface and a longitudinal axis, the system comprising:a filter formed of a filter media arranged in a generally annular shape for placement around a portion of the engine to receive intake air from said region generally surrounding the engine in a flow direction which is generally radially inward; anda filter mount engageable with the outer surface of the engine and configured for supporting the filter at an installed position wherein the filter is in spaced relation from the outer surface of the engine, the mount having an inner edge shaped and sized for sealingly engaging the engine and having an outer edge configured for sealingly engaging and supporting the filter;wherein said outer edge of the mount comprises an annular engagement surface facing generally radially outward and opposite said flow direction, such that the flow of intake air presses the filter against said outer edge for improved sealing. 2. An air induction system as set forth in claim 1 wherein the filter comprises a first filter element and a second filter element, each filter element being generally semicircular in shape. 3. An air induction system as set forth in claim 2 wherein the first filter element and second filter element are adapted for interconnection to form an annulus, the filter elements having substantially the same construction and being interchangeably usable in the system. 4. An air induction system as set forth in claim 3 further comprising interengageable fasteners on the first filter element and second filter element, the filter elements being engageable with the mount and securable at the installed position with said fasteners between the filter elements, and being free from fixed attachment to the mount or the engine, thereby facilitating rapid installation and removal. 5. An air induction system as set forth in claim 4 wherein the fasteners comprise latch clips. 6. An air induction system as set forth in claim 1 wherein the mount comprises first and second plates attachable to the engine in relative spaced relation, and wherein at the installed position the filter spans the first and second plates. 7. An air induction system as set forth in claim 6 wherein the filter has a central axis, and the first and second plates are configured such that at the installed position, the axis of the filter is aligned with the axis of the engine. 8. An air induction system as set forth in claim 6 wherein the filter has a central axis, and the first and second plates are configured such that at the installed position, the axis of the filter is parallel with and offset from the axis of the engine. 9. An air induction system as set forth in claim 6 wherein said inner edge of each of the first and second plates conforms to a contour of the outer surface of the engine and forms a generally airtight seal thereagainst, and said outer edge of each of the first and second plates has a semicircular contour configured for forming a generally airtight seal when engaged by the filter. 10. An air induction system as set forth in claim 1 further comprising a first annular seal attached to said inner edge of the mount and extending along said inner edge to provide an airtight engagement between said inner edge of the mount and the engine, and a second annular seal extending along said outer edge of the mount to provide an airtight engagement between said outer edge and the filter. 11. An air induction system as set forth in claim 1 wherein said inner edge of the mount comprises an annular engagement surface facing generally radially inward and aligned with said flow direction, such that the flow of intake air pressing the filter against said mount further presses the inner edge of the mount against the outer surface of the engine for improved sealing. 12. An air induction system for an engine to receive intake air from a region generally surrounding the engine, remove contaminants from the intake air, and provide the intake air for delivery to the engine, the engine including a housing having an outer peripheral surface, the system comprising:a filter formed of a filter media arranged in a generally annular shape for placement around a portion of the engine to receive intake air from said region generally surrounding the engine; anda filter mount engageable with the outer surface of the engine and configured for supporting the filter at an installed position wherein the filter is in spaced relation from the outer surface of the engine, the mount having an inner edge shaped and sized for sealingly engaging the engine and having an outer edge configured for sealingly engaging and supporting the filter;wherein the filter comprises a first filter element and a second filter element, each filter element being generally semicircular in shape and having a semicircular frame supporting the filter media, the system further comprising fasteners for attaching the frame of the first filter element to the frame of the second filter element. 13. In combination, an engine with an air induction system for protecting the engine from contaminant particles and which is readily installed or removed for facilitating rapid replacement such as for maintenance, the combination comprising:an engine having a housing with an outer surface and a generally cylindric inlet;a filter formed of a filter media arranged in a generally annular shape for placement around the inlet to receive intake air from said region generally surrounding the engine, the filter comprising at least two separable filter units; anda filter mount engageable with the engine and configured for supporting the filter at an installed position wherein the filter is spaced from the inlet, the mount having an inner edge shaped and sized for sealingly engaging the outer surface and having an outer edge configured for sealingly engaging and supporting the filter. 14. A combination as set forth in claim 13 wherein the mount comprises first and second plates attachable to the engine in relative spaced relation, and wherein at the installed position the filter spans the first and second plates. 15. A combination as set forth in claim 14 wherein the engine has a longitudinal axis, the filter has a central axis, and the first and second plates are configured such that at the installed position, the axis of the filter is aligned with the axis of the engine. 16. A combination as set forth in claim 14 wherein the engine has a longitudinal axis, the filter has a central axis, and the first and second plates are configured such that at the installed position, the axis of the filter is parallel with and offset from the axis of the engine. 17. An air induction system for an engine to receive intake air from a region generally surrounding the engine, remove contaminants from the intake air, and provide the intake air for delivery to the engine, the engine including a housing having an outer peripheral surface, the system comprising:a filter formed of a filter media arranged in a generally annular shape for placement around a portion of the engine to receive intake air from said region generally surrounding the engine; anda filter mount engageable with the outer surface of the engine and configured for supporting the filter at an installed position wherein the filter is in spaced relation from the outer surface of the engine, the mount having an inner edge shaped and sized for sealingly engaging the engine and having an outer edge configured for sealingly engaging and supporting the filter;wherein the mount comprises first and second plates attachable to the engine in relative spaced relation, said inner edge of the mount including inner edges of the first and second plates which each conform to a cont our of the outer surface of the engine and are adapted to form a generally airtight seal thereagainst, and said outer edge of the mount including outer edges of the first and second plates which each have a contour configured for forming a generally airtight seal when engaged by the filter.