中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

14 records (took 0.011 seconds)

    System and method for monitoring engine fluid levels
    1.
    发明授权
    System and method for monitoring engine fluid levels 有权

    公开(公告)号：US11280232B2

    公开(公告)日：2022-03-22

    申请号：US16551134

    申请日：2019-08-26

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Tatjana Pekovic ,  John Correia ,  Robert Pontarelli ,  Andre Ip

    IPC: F01M11/12

    Abstract: Methods and Systems for monitoring an engine fluid level in a fluid recipient are described. In one example, the method comprises, during a fluid replenishing procedure, detecting when the fluid level reaches a level associated with the recipient being full; in response to the detecting, triggering a timer corresponding to a predetermined number of operating hours of the engine based on a fluid volume capacity of the fluid recipient; when the timer expires, verifying the fluid level; and issuing a first alert signal when the fluid level is at the level associated with the recipient being full and the timer has expired.

    SYSTEM AND METHOD FOR VALIDATING COMPONENT INTEGRITY IN AN ENGINE
    3.
    发明申请
    SYSTEM AND METHOD FOR VALIDATING COMPONENT INTEGRITY IN AN ENGINE 审中-公开

    公开(公告)号：US20200249125A1

    公开(公告)日：2020-08-06

    申请号：US16263327

    申请日：2019-01-31

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Tatjana Pekovic ,  Sean McCarthy ,  Andrew Ghattas

    IPC: G01M15/14

    Abstract: Methods and systems for validating component integrity in an engine are described. First usage data associated with a period of operation of the engine is obtained at an engine controller. An indication of the first usage data is transmitted from the engine controller to a first presentation device. Second usage data associated with the period of operation of the engine is received at the engine controller from an input device. The first usage data is compared to the second usage data at the engine controller. Based on the comparing, an alert is issued to a second presentation device independent from the first presentation device.

    System and method for monitoring component integrity during engine operation
    4.
    发明授权
    System and method for monitoring component integrity during engine operation 有权

    公开(公告)号：US11193428B2

    公开(公告)日：2021-12-07

    申请号：US16263337

    申请日：2019-01-31

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Tatjana Pekovic ,  Sean McCarthy ,  Andrew Ghattas

    IPC: F02C9/28 ,  G06F13/38 ,  B64D45/00 ,  G01M15/04 ,  G06F9/30 ,  G01M15/14

    Abstract: Methods and systems for monitoring component integrity during operation of an engine are provided. Usage data associated with a period of operation of the engine is obtained at an engine controller. The engine controller has assigned thereto a first trust level. A first indication of the usage data is transmitted from the engine controller to a first presentation device forming part of a first communication path, which has assigned thereto a second trust level lower than the first trust level. A second indication of the usage data is transmitted from the engine controller to a second presentation device forming part of a second communication path, which is independent from the first communication path and has assigned thereto the second trust level. The trust level of the first and second communication paths is elevated by having the usage data transmitted through the first and second independent communication paths.

    NORMAL MODE OPERATION OF HYBRID ELECTRIC PROPULSION SYSTEMS
    7.
    发明申请
    NORMAL MODE OPERATION OF HYBRID ELECTRIC PROPULSION SYSTEMS 审中-公开

    公开(公告)号：US20200277063A1

    公开(公告)日：2020-09-03

    申请号：US16707992

    申请日：2019-12-09

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Jean Thomassin ,  Manuel Acuna ,  Joseph Kehoe ,  Tatjana Pekovic

    IPC: B64D27/24 ,  B64D31/06 ,  B64D31/14

    Abstract: A hybrid electric engine control module (ECU) configured to be operatively connected to a hybrid electric aircraft powerplant having a heat engine system and an electric motor system to control a torque output from each of the heat engine system and the electric motor system, the ECU being configured to determine whether the electric motor system and/or the heat engine system are in a normal mode such that the electric motor system and/or the heat engine can provide a predetermined amount of torque (e.g., full power). The ECU can be configured to receive a total torque setting and split output power between the electric motor system and the heat engine system in accordance with the normal mode as a function of the total torque setting. The ECU can be configured to detect and command recharging or regenerating of the battery system in some flight conditions.

    Engine starting system using stored energy
    8.
    发明授权
    Engine starting system using stored energy 有权

    公开(公告)号：US09840997B2

    公开(公告)日：2017-12-12

    申请号：US13803572

    申请日：2013-03-14

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Kevin A. Dooley ,  Keith Morgan ,  Tatjana Pekovic

    IPC: F02N11/08 ,  F02C7/26 ,  H02P9/48 ,  H02P9/02 ,  H02P1/00 ,  H02P101/30

    CPC classification number: F02N11/0866 ,  F02C7/26 ,  H02P1/00 ,  H02P9/02 ,  H02P9/48 ,  H02P2101/30

    Abstract: There is described a method and system for starting at least one engine from a twin engine installation having a first engine arrangement and a second engine arrangement. The method comprises receiving a first voltage level from a power source and increasing the first voltage level to a second voltage level; charging an energy storage unit having at least a first super-capacitor and a second super-capacitor to the second voltage level; selectively connecting one of the first super-capacitor and the second super-capacitor to a first power control unit in the first engine arrangement; controlling a discharge current to a first electric machine in the first engine arrangement via the first power control unit; and rotating a rotor of the first electric machine to an above engine idle speed to start a first engine of the twin engine installation.

    Electric power system for powerplants of a multi-engine aircraft
    10.
    发明授权
    Electric power system for powerplants of a multi-engine aircraft 有权

    公开(公告)号：US11718408B2

    公开(公告)日：2023-08-08

    申请号：US16511586

    申请日：2019-07-15

    Applicant: PRATT & WHITNEY CANADA CORP.

    Inventor： Tatjana Pekovic

    IPC: B64D27/24 ,  B64D31/00 ,  B64D27/10 ,  F02C6/20

    CPC classification number: B64D27/24 ,  B64D27/10 ,  B64D31/00 ,  F02C6/20

    Abstract: A multi-engine aircraft that includes two or more powerplants, each including an electric motor, and an electric power system controlling electrical distribution and operatively connected to the electric motors. The electric power system includes primary battery packs operatively connected to the electric motor of a respective one of the two or more powerplants, a reserve battery pack, and a switch interconnecting the reserve battery pack and the electric motors. The reserve battery pack is shared by the electric motors by the switch and configured such that the reserve battery pack provides electric power to a selected one of the electric motors.

Patent Agency Ranking