Encoder multiplexer for digital key integration

    公开(公告)号:US11610447B2

    公开(公告)日:2023-03-21

    申请号:US17676420

    申请日:2022-02-21

    发明人: Adam Kuenzi

    摘要: A system including a device operable to intercept a PMS request from the PMS to the encoder to obtain card data from the encoder, then send the card data to a credential service to provision a mobile phone with a virtual key. A method of provisioning credentials for a mobile device, the method including generating a request from a Property Management Systems (PMS); sending the request to an encoder through a device; determining if the request is for a virtual card at the device; and using an encoder 0 feature to check-in a guest from the encoder in response to a request for a virtual card.

    Self-guiding carbon seal system
    4.
    发明授权

    公开(公告)号:US11608751B2

    公开(公告)日:2023-03-21

    申请号:US17206521

    申请日:2021-03-19

    IPC分类号: F02C7/28 F01D11/00 F16J15/34

    摘要: An apparatus has a first member, a shaft rotatable relative to the first member about an axis, and a seal system. The seal system has: a seal carried by the first member and having a seal face; and a seat carried by the shaft and having a seat face in sliding sealing engagement with the seal face. The seal system is a dry face seal system. The seat further includes a section having: an outer diameter surface encircled by the seal; and a rim.

    Oil return passageway for annular rotating seal seat

    公开(公告)号:US11585271B2

    公开(公告)日:2023-02-21

    申请号:US16952653

    申请日:2020-11-19

    IPC分类号: F02C7/06 F01M1/02 F01M11/02

    摘要: A seal system for a bearing compartment of a gas turbine engine includes an annular rotating seal seat in contact with the seal element to form a dry seal interface therebetween to separate am oil-wetted zone from a dry zone. The annular rotating seal seat forms a dry zone annular space adjacent to the annular seal element and the rotating component. The annular rotating seal seat having an oil return passageway through the rotating seal seat to provide a communication path from the dry zone annular space outboard of the rotating component back to the oil-wetted zone.

    Low friction, wear resistant variable vane bushing

    公开(公告)号:US11566535B2

    公开(公告)日:2023-01-31

    申请号:US16879802

    申请日:2020-05-21

    IPC分类号: F01D17/16

    摘要: A variable vane assembly includes a variable vane; a trunnion arranged on one end of the variable vane; a bushing mated to the trunnion to define an interface between the trunnion and the bushing; and a surface modification on at least one of the trunnion and the bushing at the interface, whereby frictional heating at the interface during operation of the assembly is reduced.

    Heat pump with ejector
    8.
    发明授权

    公开(公告)号:US11561028B2

    公开(公告)日:2023-01-24

    申请号:US16989603

    申请日:2020-08-10

    摘要: A system (20; 300) has: a compressor (22) having a suction port (40) and a discharge port (42); an ejector (32) having a motive flow inlet (50), a suction flow inlet (52), and an outlet (54); a separator (34) having an inlet (72), a vapor outlet (74), and a liquid outlet (76); a first heat exchanger (24); an expansion device (28); and a second heat exchanger (26; 302). Conduits and valves are positioned to provide alternative operation in: a cooling mode; a first heating mode; and a second heating mode. In the cooling mode and second heating mode, a needle (60) of the ejector is closed.

    Purpose built cable connector
    9.
    发明授权

    公开(公告)号:US11545780B1

    公开(公告)日:2023-01-03

    申请号:US17465048

    申请日:2021-09-02

    申请人: Raytheon Company

    发明人: Harrison Roberts

    摘要: A cable connector including a housing with a main body having a front face opposite a rear face and pin holes formed through the main body extending between the front face and the rear face, a first arm and second arm extending from the main body distal from the rear face; a cover removably coupled to the front face, the cover including receivers configured to align with the pin holes to receive either a pin or a socket connected at a terminal end of a wire; fasteners removably coupled to the cover and the housing; at least one guide post extending from an outer surface of the cover; a collar supported between the first arm and the second arm; and a predetermined pattern of the wire coupled to at least one of the pin and the socket, wherein either the pin or the socket are insertable in the pin hole.