INJECTION MODULE FOR A CONVEYOR ASSEMBLY OF A FUEL CELL SYSTEM

    公开(公告)号:US20240313236A1

    公开(公告)日:2024-09-19

    申请号:US18576177

    申请日:2022-06-07

    申请人: Robert Bosch GmbH

    IPC分类号: H01M8/04089 F04F5/46

    CPC分类号: H01M8/04089 F04F5/461

    摘要: The invention relates to an injection module (2) for a conveyor assembly (1) of a fuel cell system (31) for conveying and/or recirculating a gaseous medium, in particular hydrogen, in which: the injection module (2) has a communicating opening (29) and/or an inlet opening (3), by means of which the gaseous medium flows into the injection module (2); the injection module (2) has a small nozzle body (13) having a first drive nozzle (12) and a large nozzle body (15) having a second drive nozzle (14), by means of which (12, 14) the gaseous medium flows out of the injection module (2); the small nozzle body (13) is disposed movably in the direction of a longitudinal axis (52) in the large nozzle body (8) and/or in the injection module (2); the small nozzle body (13) and the large nozzle body (15) each have a gas flow path (III, IV); the gaseous medium can flow either only through the first gas flow path III or through the first gas flow path III and the second gas flow path IV simultaneously; the second gas flow path IV can be opened or closed by means of a movement of the small nozzle body (13). According to the invention, the small nozzle body (13) abuts a stop disc (30) and/or at least indirectly abuts the large nozzle body (15), and thus forms an opening pressure surface (22); the opening pressure surface (22) and a closing pressure surface (24), in particular located at the outflow end of the small nozzle body, are at least almost the same size; the opening pressure surface (22) can be subjected to a dynamic pressure (44) at the inflow end.

    High efficiency aspirator for inflatable emergency slides

    公开(公告)号:US12018702B2

    公开(公告)日:2024-06-25

    申请号:US18110025

    申请日:2023-02-15

    申请人: Altevac, LLC

    发明人: Blair White

    IPC分类号: F04F5/46 B64D25/14 F04F5/18

    摘要: An aspirator assembly for inflating an emergency slide. The aspirator assembly includes a bell housing, a mixing chamber, and a nozzle assembly. The bell housing includes a ring defining an inlet port at which a check valve is located and into which ambient air can flow. The mixing chamber has an outlet port, The nozzle assembly is located in the mixing chamber and includes plural passageway sections defining concentric rings and cross bars. The passageway sections include internal passageways in communication with plural nozzle jets through which a compressed air is introduced into the mixing chamber to mix with the ambient air. The passageway sections are of an airfoil shape cross-section having a rounded leading end directed towards the inlet port and a trailing end is directed toward the outlet port to reduce air turbulence within the mixing chamber.

    Intake Chamber and Suction Jet Pump
    3.
    发明公开

    公开(公告)号:US20240191724A1

    公开(公告)日:2024-06-13

    申请号:US18280301

    申请日:2022-03-08

    IPC分类号: F04F5/10 F04F5/46

    CPC分类号: F04F5/10 F04F5/46

    摘要: An intake chamber (10) for an operating medium pump for sucking up operating medium stored in an operating medium tank of a motor vehicle, comprising a housing (20) in which at least two inlet openings (31, 32) for admitting operating medium to a connection (60) formed in the top side of the housing (20) are formed, wherein a deflecting wall (51, 52) is arranged in the housing (20) be-tween each inlet opening (31, 32) and the connection (60). Undercuts (81, 82) are formed on the inside of the inlet openings (31, 32). A suction jet pump or operating medium pump with at least one such intake chamber 10 is also disclosed.

    Jet pump
    5.
    发明授权
    Jet pump 有权

    公开(公告)号:US11905978B2

    公开(公告)日:2024-02-20

    申请号:US17602442

    申请日:2020-03-30

    IPC分类号: F04F5/46

    CPC分类号: F04F5/465

    摘要: A jet pump comprising a jet nozzle for accelerating a propellant. The jet nozzle has a convergent inlet part and an outlet part connected to the convergent inlet part. The outlet comprises an inner wall diverging at an opening angle. The opening angle is designed such that a propellant flowing through the outlet part at subsonic speed is detached from the inner wall and a propellant flowing through the outlet part at supersonic speed is guided by the inner wall. An automatic, cost-effective and simple changeover of the jet pump to different pressure ratios is hence provided.

    Ejector
    7.
    发明授权
    Ejector 有权

    公开(公告)号:US11549522B2

    公开(公告)日:2023-01-10

    申请号:US16452758

    申请日:2019-06-26

    申请人: DENSO CORPORATION

    IPC分类号: F04F5/04 F04F5/46 B60H1/32

    摘要: An ejector includes a nozzle, a needle and a body. The nozzle reduces a pressure of a fluid and discharges the fluid as an injected fluid from a fluid injection port. The body includes a fluid suction port and a pressure increasing portion. The fluid suction port draws, as a suction fluid, a fluid from an outside of the body by using a suction force generated by the injected fluid. The pressure increasing portion increases a pressure of a mixture of the injected fluid and the suction fluid. The nozzle includes a throat portion and a nozzle-side tapered portion. The throat portion reduces a passage cross-sectional area of the fluid passage to be smallest in the fluid passage at the throat portion. The nozzle-side tapered portion expands the passage cross-sectional area of the fluid passage toward the downstream side in the flow direction of the fluid. In an axial cross section, an injection-flow spread angle formed on the downstream side in the flow direction of the fluid between a central axis and a tangent line of an injection-flow center line at the fluid injection port is 0° or greater.

    HIGH EFFICIENCY ASPIRATOR FOR INFLATABLE EMERGENCY SLIDES

    公开(公告)号:US20220003248A1

    公开(公告)日:2022-01-06

    申请号:US17479371

    申请日:2021-09-20

    申请人: ALTEVAC LLC

    发明人: Blair White

    IPC分类号: F04F5/46 B64D25/14 F04F5/18

    摘要: An aspirator assembly for inflating an emergency slide. The aspirator assembly includes a bell housing, a mixing chamber, and a nozzle assembly. The bell housing includes a ring defining an inlet port at which a check valve is located and into which ambient air can flow. The mixing chamber has an outlet port, The nozzle assembly is located in the mixing chamber and includes plural passageway sections defining concentric rings and cross bars. The passageway sections include internal passageways in communication with plural nozzle jets through which a compressed air is introduced into the mixing chamber to mix with the ambient air. The passageway sections are of an airfoil shape cross-section having a rounded leading end directed towards the inlet port and a trailing end is directed toward the outlet port to reduce air turbulence within the mixing chamber.

    BLADELESS FAN AND AIR OUTLET CYLINDER THEREOF

    公开(公告)号:US20210324864A1

    公开(公告)日:2021-10-21

    申请号:US16608194

    申请日:2018-05-02

    申请人: Hui YING

    发明人: Hui YING

    摘要: An air outlet cylinder of a bladeless fan is provided, having an air cylinder and a nozzle; the air cylinder is provided with an air inlet for receiving airflows, and an internal channel; the front-end sidewall of the air cylinder is provided with an opening extending longitudinally therethrough; the inner wall surface at each of two sides of the opening in the air cylinder is separately provided with a limiting groove extending longitudinally therethrough; the nozzle has a mouth part embedded in the opening and two airflow guiding parts respectively embedded in the corresponding limiting grooves; multiple air outlet slits are longitudinally spaced on the mouth part; airflows received in the internal channel are sprayed from the air outlet slits. A bladeless fan having the air outlet cylinder is also provided.