Method and systems for draining fluid from an engine
First Claim
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1. A system for an exhaust gas recirculation (EGR) system, comprising:
- a connector fluidly coupled to each of an intake system, an exhaust system, and a fluid collector, where the connector is positioned vertically below an intake manifold of the intake system and an exhaust passage of the exhaust system and vertically above the fluid collector with respect to a surface on which an engine sits,wherein the connector is configured to flow gases from the intake system through the connector and to the exhaust system during engine operation, and to flow non-gaseous fluid from the intake system through the connector and into the fluid collector.
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Abstract
Various methods and systems are provided for a drain system for an EGR system of an engine system. In one example, the drain system includes a connector fluidly coupled to each of an intake system, an exhaust system, and a fluid collector, where the connector is positioned vertically below an intake manifold of the intake system and an exhaust passage of the exhaust system and vertically above the fluid collector with respect to a surface on which an engine sits.
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Citations
22 Claims
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1. A system for an exhaust gas recirculation (EGR) system, comprising:
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a connector fluidly coupled to each of an intake system, an exhaust system, and a fluid collector, where the connector is positioned vertically below an intake manifold of the intake system and an exhaust passage of the exhaust system and vertically above the fluid collector with respect to a surface on which an engine sits, wherein the connector is configured to flow gases from the intake system through the connector and to the exhaust system during engine operation, and to flow non-gaseous fluid from the intake system through the connector and into the fluid collector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 21, 22)
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10. A method for an engine, comprising:
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during engine operation, directing intake air including at least some exhaust gas from an intake passage, downstream of a compressor, to an outlet of a turbine via a nozzle including a constriction; and when the engine is not operating, draining fluid from the intake passage to an engine waste sump via a drain port in the nozzle, where the constriction and drain port of the nozzle are each positioned vertically below an intake manifold and turbine and vertically above the engine waste sump with respect to a surface on which the engine sits. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A system for an engine, comprising:
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an intake passage including a compressor driven by a turbine, where the compressor is positioned upstream of an intake manifold; an exhaust gas recirculation (EGR) system including an EGR passage coupled to the intake passage downstream of the compressor and upstream of the intake manifold; an engine waste sump positioned vertically below the intake manifold with respect to a surface on which the engine sits; and a venturi nozzle having a first end fluidly coupled to the intake passage, downstream of where the EGR passage couples to the intake passage and upstream of the intake manifold, a second end fluidly coupled to an outlet of the turbine, and a vacuum, third end fluidly coupled to the engine waste sump, where the venturi nozzle is positioned vertically below the intake passage and turbine and vertically above the engine waste sump. - View Dependent Claims (17, 18, 19, 20)
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Specification