Compressor recirculation into annular volume

    公开(公告)号:US11261873B2

    公开(公告)日:2022-03-01

    申请号:US16166439

    申请日:2018-10-22

    Abstract: To solve the problems of compressor wheel blade flow separation causing surge type noises when an exhaust gas recirculation (EGR) duct introduces into the compressor exhaust gases to be returned to the engine, the exhaust gas is fed into an annular volume, defined between inner and outer walls or an annular transition cavity shaped as a radially expanded, axially flattened cylindrical space in the compressor inlet, so that the generally unidirectional radial flow from an EGR duct is re-directed and organized as it is turned from generally radial to generally axial, merging with the general inlet flow and presenting the compressor wheel with airflow of “circumferentially uniform” flow velocity.

    Waste heat powered exhaust pump
    2.
    发明授权

    公开(公告)号:US10920658B2

    公开(公告)日:2021-02-16

    申请号:US15803204

    申请日:2017-11-03

    Inventor: Paul K. Anschel

    Abstract: A number of variations may include a combustion engine tailpipe exhaust circuit defining an exhaust stream and a waste heat recovery system constructed and arranged to recover thermal energy from at least one of a tailpipe exhaust circuit, exhaust stream, charge air cooler, exhaust gas recirculation fluid stream, or coolant stream. The waste heat recovery system may include an expander assembly that may include a first pump, an expander, an evaporator, and a condenser. A second pump driven by the waste heat recovery system may be in fluid communication with the tailpipe exhaust circuit and exhaust stream and may be constructed and arranged to reduce exhaust pressure in the tailpipe exhaust circuit and exhaust stream. A third pump may be in fluid communication with an exhaust gas recirculation fluid stream and which is constructed and arranged to pump the exhaust gas recirculation fluid stream within the exhaust gas recirculation system.

    COMPRESSOR RECIRCULATION INTO ANNULAR VOLUME

    公开(公告)号:US20190055952A1

    公开(公告)日:2019-02-21

    申请号:US16166439

    申请日:2018-10-22

    Abstract: To solve the problems of compressor wheel blade flow separation causing surge type noises when an exhaust gas recirculation (EGR) duct introduces into the compressor exhaust gases to be returned to the engine, the exhaust gas is fed into an annular volume, defined between inner and outer walls or an annular transition cavity shaped as a radially expanded, axially flattened cylindrical space in the compressor inlet, so that the generally unidirectional radial flow from an EGR duct is re-directed and organized as it is turned from generally radial to generally axial, merging with the general inlet flow and presenting the compressor wheel with airflow of “circumferentially uniform” flow velocity.

    WASTE HEAT POWERED EXHAUST PUMP
    5.
    发明申请

    公开(公告)号:US20190136748A1

    公开(公告)日:2019-05-09

    申请号:US15803204

    申请日:2017-11-03

    Inventor: Paul K. Anschel

    Abstract: A number of variations may include a combustion engine tailpipe exhaust circuit defining an exhaust stream and a waste heat recovery system constructed and arranged to recover thermal energy from at least one of a tailpipe exhaust circuit, exhaust stream, charge air cooler, exhaust gas recirculation fluid stream, or coolant stream. The waste heat recovery system may include an expander assembly that may include a first pump, an expander, an evaporator, and a condenser. A second pump driven by the waste heat recovery system may be in fluid communication with the tailpipe exhaust circuit and exhaust stream and may be constructed and arranged to reduce exhaust pressure in the tailpipe exhaust circuit and exhaust stream. A third pump may be in fluid communication with an exhaust gas recirculation fluid stream and which is constructed and arranged to pump the exhaust gas recirculation fluid stream within the exhaust gas recirculation system.

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