Swirl type lp - egr throttle mechanism
AssigneeBorgWarner Inc.
InventorsTimm Kiener, Thomas Kritzinger, Urs Hanig, Michael Becker
Life of this patent
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Abstract
A mechanism may include a housing with an inlet passage and an outlet passage joined to the inlet passage by a valve chamber. The valve chamber may contain a plurality of vanes. The vanes may be arranged to: substantially close flow between the inlet passage and the outlet passage; induce swirl between the inlet passage and the outlet passage in both a first direction and a second direction; and be positioned parallel to flow between the inlet passage and the outlet passage. Closing off flow from the inlet passage may enhance flow from an exhaust gas port to the outlet passage.
Claims34
A product comprising a housing including an exhaust gas port, an inlet passage, and an outlet passage joined to the inlet passage by a valve chamber containing a plurality of vanes arranged to:
- substantially close flow through the valve chamber;
- and induce swirl between the inlet passage and the outlet passage in both a first direction and a second direction;
- wherein when the vanes substantially close flow through the valve chamber, flow from the exhaust gas port to the outlet port is induced.
A mechanism for influencing flow comprising an inlet port, an outlet port, a flow passage between the inlet port and the outlet port, a valve chamber in the flow passage, an exhaust gas port configured to admit a flow of exhaust gas and opening to the flow passage between the valve chamber and the outlet port, and a set of vanes wherein the set of vanes are arranged to:
- induce swirl between the inlet port and the outlet port in both a first direction and a second direction;
- and close off flow from the inlet port thereby inducing flow from the exhaust gas port to the outlet port.
A mechanism for effecting swirl and for throttling flow comprising an inlet port, an outlet port, a flow passage between the inlet port and the outlet port, a valve chamber in the flow passage, an exhaust gas port configured to admit a flow of exhaust gas into the flow passage and opening to the flow passage between the valve chamber and the outlet port, and a set of vanes positioned in the valve chamber wherein each vane in the set of vanes includes a leading edge, a trailing edge, and a maximum thickness that is located closer to the leading edge than to the trailing edge and wherein the set of vanes is configured to rotate to effect swirl and throttle flow and is configured to rotate closing off flow from the inlet port enhancing flow from the exhaust gas port to the outlet port.
Dependencies are inferred from the claim text.