Blower housing having integral exhaust blower discharge drain section

    公开(公告)号:US11852164B2

    公开(公告)日:2023-12-26

    申请号:US18108100

    申请日:2023-02-10

    Inventor: Leslie A Lyons

    CPC classification number: F04D29/4226 F04D29/706

    Abstract: A blower housing comprises first and second blower housing pieces for surrounding a blower fan. The first blower housing piece comprises a blower discharge section comprising an inner tubular portion, an outer tubular portion, and a drain hole. The inner tubular portion defines a blower discharge passage. The inner and outer tubular portions define an exhaust pipe cavity adapted to receive an end margin of an exhaust pipe. The tubular portions are adapted to enable condensate water that forms on the inner surface of the exhaust pipe to flow into the exhaust pipe cavity. The drain hole extends through the outer tubular portion. The drain hole is configured to enable condensate water flowing into the exhaust pipe cavity to drain from the blower housing. The first blower housing piece is a molded one-piece member.

    MULTI-CAPACITY COMPRESSOR WITH VARIABLE SPEED DRIVE AND METHOD OF USE

    公开(公告)号:US20230341153A1

    公开(公告)日:2023-10-26

    申请号:US18337944

    申请日:2023-06-20

    Abstract: An HVAC system including a multi-capacity compressor, and a control system for the multi-capacity compressor are described herein. The control system includes an AC line voltage source, a variable-voltage variable-frequency drive, and a processor. The AC line voltage source is configured to operate the multi-capacity compressor. The variable-voltage variable-frequency drive is coupled to the AC line voltage source and is configured to operate the multi-capacity compressor at a variable speed. The processor is coupled to the AC line voltage source and the variable-voltage variable-frequency drive and is configured to selectively couple the AC line voltage source and the variable-voltage variable-frequency drive to the multi-capacity compressor to operate the multi-capacity compressor. The processor is further configured to transmit a capacity control signal to the multi-capacity compressor. The capacity control signal is instructive to operate the multi-capacity compressor in one of a plurality of capacity settings.

    CONTROLLER AND DRIVE CIRCUITS FOR ELECTRIC MOTORS

    公开(公告)号:US20230283216A1

    公开(公告)日:2023-09-07

    申请号:US18316800

    申请日:2023-05-12

    CPC classification number: H02P27/047 H02P23/28 H02P27/08

    Abstract: An electric motor system is described. The electric motor system includes a drive circuit configured to supply variable frequency current and a contactor configured to supply line frequency current, wherein the drive circuit includes a three-phase inverter and an H-bridge including two phases of the inverter. The electric motor system also includes an electric motor and a controller. The controller is configured to control the inverter to supply variable frequency current to the electric motor over a first duration and determine to control the drive circuit to transition from supplying variable frequency current to supplying line frequency current. The controller is also configured to determine a polarity of a sensed alternating current (AC) voltage, disable at least two switches of the H-bridge, and control the contactor to close, thereby preventing the contactor and the inverter from energizing the electric motor at the same time once the contactor is closed.

    ACTUATOR, ELECTRIC MOTOR AND ASSOCIATED METHOD
    157.
    发明公开

    公开(公告)号:US20230223823A1

    公开(公告)日:2023-07-13

    申请号:US18185920

    申请日:2023-03-17

    CPC classification number: H02K11/23 H02K7/003

    Abstract: An electrical switch for an electric machine includes body, a stator fixedly secured to the body and a rotor. The actuator includes a first member securable to the rotor and rotatable with it. The actuator also includes a second member, a first electrically conductive member cooperates with the second member. The actuator also includes a second electrically conductive member. The second electrically conductive member is spaced from said first electrically conductive member when said first electrically conductive member is in the first axial position and electrically engaged with said first electrically conductive member when said first electrically conductive member is in the second axial position.

    ELECTRIC MACHINE INCLUDING AN AIR COOLING SYSTEM

    公开(公告)号:US20230216367A1

    公开(公告)日:2023-07-06

    申请号:US17646602

    申请日:2021-12-30

    CPC classification number: H02K5/207 H02K9/06 H02K9/227

    Abstract: An electric machine includes a housing having an air intake, an air outlet, and defining an air passage therein. The air passage includes a first channel extending from the air intake in a radial direction and a second channel extending in the radial direction to the outlet. The electric machine further includes a motor assembly positioned within the housing that includes a shaft that rotates about a rotational axis that is generally perpendicular to the radial direction. The electric machine further includes an electronics assembly within the housing interior and a heat sink positioned at least partially within the air passage and thermally connected to the electronics assembly. Operation of the motor assembly draws an ambient airflow into the air passage in the radial direction through the air intake, directs the airflow along the heat sink, and exhausts the airflow through the air outlet in the radial direction.

    Blower housing having integral exhaust blower discharge drain section

    公开(公告)号:US11608836B2

    公开(公告)日:2023-03-21

    申请号:US17863619

    申请日:2022-07-13

    Inventor: Leslie A. Lyons

    Abstract: A blower housing comprises first and second blower housing pieces for surrounding a blower fan. The first blower housing piece comprises a blower discharge section comprising an inner tubular portion, an outer tubular portion, and a drain hole. The inner tubular portion defines a blower discharge passage. The inner and outer tubular portions define an exhaust pipe cavity adapted to receive an end margin of an exhaust pipe. The tubular portions are adapted to enable condensate water that forms on the inner surface of the exhaust pipe to flow into the exhaust pipe cavity. The drain hole extends through the outer tubular portion. The drain hole is configured to enable condensate water flowing into the exhaust pipe cavity to drain from the blower housing. The first blower housing piece is a molded one-piece member.

    Draft inducer blower
    160.
    发明授权

    公开(公告)号:US11603851B2

    公开(公告)日:2023-03-14

    申请号:US17333356

    申请日:2021-05-28

    Inventor: Steven W. Post

    Abstract: A draft inducer blower assembly includes a blower having a fan, a dilution air intake passage, an exhaust gas intake passage, and a discharge passage. The blower is configured to operatively connect to a heater system in a manner to facilitate flow of combustion air into a combustion chamber and to draw dilution air into the blower and to mix the dilution air with the exhaust gases and to facilitate flow of the mixed air and exhaust gases through the vent. The dilution air intake passage is positionable in at least a low flow configuration and a high flow configuration. The dilution air intake passage is more restrictive of intake of dilution air in the low flow configuration than in the high flow configuration.

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