SYSTEMS AND METHODS FOR A VALVE IN A DUAL-CORE EGR COOLER

    公开(公告)号:US20220120243A1

    公开(公告)日:2022-04-21

    申请号:US17074479

    申请日:2020-10-19

    Abstract: Methods and systems are provided for directing the flow of recirculated exhaust gas (EGR) delivered to an EGR cooler. In one example, a method includes flowing EGR through an EGR cooler positioned in an EGR passage, the EGR cooler comprising a bypass passage, a first cooler core flow path, and a second cooler core flow path, and adjusting a valve of the EGR cooler to selectively block flow of the EGR through the bypass passage, the first cooler core flow path, and the second cooler core flow path. In this way, fouling of the EGR cooler may be reduced.

    Systems and methods for a valve in a dual-core EGR cooler

    公开(公告)号:US11352986B2

    公开(公告)日:2022-06-07

    申请号:US17074479

    申请日:2020-10-19

    Abstract: Methods and systems are provided for directing the flow of recirculated exhaust gas (EGR) delivered to an EGR cooler. In one example, a method includes flowing EGR through an EGR cooler positioned in an EGR passage, the EGR cooler comprising a bypass passage, a first cooler core flow path, and a second cooler core flow path, and adjusting a valve of the EGR cooler to selectively block flow of the EGR through the bypass passage, the first cooler core flow path, and the second cooler core flow path. In this way, fouling of the EGR cooler may be reduced.

    ACTIVE CASING TREATMENT ADAPTED WITH MOVABLE SLEEVE

    公开(公告)号:US20190170148A1

    公开(公告)日:2019-06-06

    申请号:US15832624

    申请日:2017-12-05

    Abstract: Methods and systems are provided for a compressor adapted with a movable sleeve and an active casing treatment that form separate air flow chambers. In one example, a method includes flowing intake air in a first direction through a casing to an impeller of a compressor, selectively flowing intake air from the casing through a first chamber in an opposite, second direction, the first chamber circumferentially surrounding the casing, and selectively flowing intake air in the first direction through a second chamber to the impeller, the second chamber circumferentially surrounding the first chamber. In this way, compressor surge may be mitigated without reducing compressor efficiency at higher air flow rates.

    Active casing treatment adapted with movable sleeve

    公开(公告)号:US10851794B2

    公开(公告)日:2020-12-01

    申请号:US15832651

    申请日:2017-12-05

    Abstract: Methods and systems are provided for a compressor adapted with a movable sleeve and an active casing treatment that form separate air flow chambers. In one example, a method includes flowing intake air through a casing to an impeller of a compressor, and during first conditions, actuating an actuator to adjust a movable sleeve surrounding the casing from a first position to a second position and flowing intake air through a second chamber to the impeller, the movable sleeve adjusted in both a radial direction and an axial direction via a single actuating motion of the actuator. In this way, compressor surge may be mitigated without reducing compressor efficiency at higher air flow rates.

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