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US 2016/0245236 A1Published application
Evacuator with motive fin
AssigneeDayco IP Holdings, LLC
InventorsBrian M. Graichen, Keith Hampton
Life of this patent
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Abstract
An evacuator is disclosed, and includes a body defining a central axis, a converging motive section, a diverging discharge section, at least one suction port, and at least one Venturi gap. The Venturi gap is located between an outlet end of the converging motive section and an inlet end of the diverging discharge section. The evacuator also includes a fin positioned within the motive section of the body. The fin extends in the direction of the central axis.
Claims20
An evacuator, comprising:
- a body defining a central axis, a first tapering portion, a second tapering portion, at least one suction port, and at least one Venturi gap located between an outlet end of the first tapering portion and an inlet end of the second tapering portion;
- and
- a fin positioned within the first tapering portion of the body, wherein the fin extends in the direction of the central axis.
A turbocharged engine air system, comprising:
- a device requiring vacuum;
- a turbocharger having a compressor fluidly connected to an intake manifold of an engine;
- and
- an evacuator defining a motive section, a discharge section, and a suction port, the evacuator including a Venturi gap positioned between an outlet end of the motive section and an inlet end of the discharge section, the Venturi gap in fluid communication with the suction port, wherein the discharge section of the evacuator is fluidly connected to the intake manifold of the engine at a location downstream of the compressor, and the suction port of the evacuator is fluidly connected to the device requiring vacuum;
- and
- a fin positioned within the motive section of the evacuator, wherein the fin extends along a length of the motive section.
3 more elements
A normally-aspirated engine air system, comprising:
- a device requiring vacuum;
- an intake manifold of an engine;
- and
- an evacuator defining a motive section, a discharge section, and a suction port, the evacuator including a Venturi gap positioned between an outlet end of the motive section and an inlet end of the discharge section, the Venturi gap in fluid communication with the suction port, wherein the discharge section of the evacuator is fluidly connected to the intake manifold of the engine at a location downstream of the compressor, and the suction port of the evacuator is fluidly connected to the device requiring vacuum;
- and
- a fin positioned within the motive section of the evacuator, wherein the fin extends along a length of the motive section.
3 more elements
Dependencies are inferred from the claim text.