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公开(公告)号：US10766461B2
公开(公告)日：2020-09-08
申请号：US16143953
申请日：2018-09-27
Applicant: ROSEMOUNT AEROSPACE INC.
Inventor： Srivatsa Santyar , Guru Prasad Mahapatra
Abstract: A windshield wiper system for an aircraft is provided and includes a motor, an output shaft, a wrap spring and crank rocker mechanism (WSCRM) to which the motor and the output shaft are coupled and a controller. By way of the WSCRM, first directional rotation input to the WSCRM from the motor via a two-stage gear reduction is converted such that the output shaft drives wiper blade oscillation through a first sweep angle and second directional rotation input to the WSCRM from the motor is converted such that the output shaft drives wiper blade oscillation through a second sweep angle. The controller is configured to control the motor such that the first directional rotation is continuously or non-continuously input during first or second flight conditions, respectively, and the second directional rotation is continuously input during third flight conditions.
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公开(公告)号：US11167727B2
公开(公告)日：2021-11-09
申请号：US16245914
申请日：2019-01-11
Applicant: ROSEMOUNT AEROSPACE INC.
Inventor： Nouduri Phani Srinivas , Srivatsa Santyar
Abstract: A windshield wiper system (WWS) is provided and includes a brushless direct current (BLDC) motor with a motor output shaft gear, a gear train and an internally cut sector gear. The gear train includes a first gear, which has a first diameter and engages with the motor output shaft gear, and a second gear, which has a second diameter that is shorter than the first diameter and rotates with the first gear. The internally cut sector gear is coupled with an output shaft and formed to define an internal geared groove that engages with the second gear.
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公开(公告)号：US20210170993A1
公开(公告)日：2021-06-10
申请号：US16779804
申请日：2020-02-03
Applicant: Rosemount Aerospace, Inc.
Inventor： Nouduri Phani Srinivas , Srivatsa Santyar
Abstract: Disclosed is an aircraft windshield wiper system, having: a wiper arm; a reversible motor that drives the wiper arm, the motor including: a stator; a rotor configured to rotate relative to the stator; a forward shaft segment that is driven by the rotor and being rotationally connected to the wiper arm; an aft shaft segment that is driven by the rotor, the aft shaft segment including a forward end and an aft end; a ball nut that translates along the aft shaft segment from rotation of the aft shaft segment; a forward stop at a forward end of the aft shaft segment, configured to stop forward translational motion of the ball nut along the aft shaft segment; and an aft stop at an aft end of the aft shaft segment, configured to stop aft translational motion of the ball nut along the aft shaft segment.
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Patent Agency Ranking
公开(公告)号：US20240025375A1
公开(公告)日：2024-01-25
申请号：US18476583
申请日：2023-09-28
Applicant: Rosemount Aerospace Inc.
Inventor： Nouduri Phani Srinivas , Srivatsa Santyar
CPC classification number: B60S1/08 , B64C1/14 , H02K7/083 , H02K7/003 , B60S1/185 , H02K7/116 , B60S1/166
Abstract: Disclosed is an aircraft windshield wiper system, having: a wiper arm; a reversible motor that drives the wiper arm, the motor including: a stator; a rotor configured to rotate relative to the stator; a forward shaft segment that is driven by the rotor and being rotationally connected to the wiper arm; an aft shaft segment that is driven by the rotor, the aft shaft segment including a forward end and an aft end; a ball nut that translates along the aft shaft segment from rotation of the aft shaft segment; a forward stop at a forward end of the aft shaft segment, configured to stop forward translational motion of the ball nut along the aft shaft segment; and an aft stop at an aft end of the aft shaft segment, configured to stop aft translational motion of the ball nut along the aft shaft segment.
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公开(公告)号：US20200017075A1
公开(公告)日：2020-01-16
申请号：US16245914
申请日：2019-01-11
Applicant: ROSEMOUNT AEROSPACE INC.
Inventor： Nouduri Phani Srinivas , Srivatsa Santyar
Abstract: A windshield wiper system (WWS) is provided and includes a brushless direct current (BLDC) motor with a motor output shaft gear, a gear train and an internally cut sector gear. The gear train includes a first gear, which has a first diameter and engages with the motor output shaft gear, and a second gear, which has a second diameter that is shorter than the first diameter and rotates with the first gear. The internally cut sector gear is coupled with an output shaft and formed to define an internal geared groove that engages with the second gear.
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公开(公告)号：US12168423B2
公开(公告)日：2024-12-17
申请号：US18476583
申请日：2023-09-28
Applicant: Rosemount Aerospace Inc.
Inventor： Nouduri Phani Srinivas , Srivatsa Santyar
Abstract: Disclosed is an aircraft windshield wiper system, having: a wiper arm; a reversible motor that drives the wiper arm, the motor including: a stator; a rotor configured to rotate relative to the stator; a forward shaft segment that is driven by the rotor and being rotationally connected to the wiper arm; an aft shaft segment that is driven by the rotor, the aft shaft segment including a forward end and an aft end; a ball nut that translates along the aft shaft segment from rotation of the aft shaft segment; a forward stop at a forward end of the aft shaft segment, configured to stop forward translational motion of the ball nut along the aft shaft segment; and an aft stop at an aft end of the aft shaft segment, configured to stop aft translational motion of the ball nut along the aft shaft segment.
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公开(公告)号：US11772606B2
公开(公告)日：2023-10-03
申请号：US16779804
申请日：2020-02-03
Applicant: Rosemount Aerospace, Inc.
Inventor： Nouduri Phani Srinivas , Srivatsa Santyar
CPC classification number: B60S1/08 , B60S1/185 , B64C1/14 , H02K7/003 , H02K7/083 , H02K7/116 , B60S1/166
Abstract: Disclosed is an aircraft windshield wiper system, having: a wiper arm; a reversible motor that drives the wiper arm, the motor including: a stator; a rotor configured to rotate relative to the stator; a forward shaft segment that is driven by the rotor and being rotationally connected to the wiper arm; an aft shaft segment that is driven by the rotor, the aft shaft segment including a forward end and an aft end; a ball nut that translates along the aft shaft segment from rotation of the aft shaft segment; a forward stop at a forward end of the aft shaft segment, configured to stop forward translational motion of the ball nut along the aft shaft segment; and an aft stop at an aft end of the aft shaft segment, configured to stop aft translational motion of the ball nut along the aft shaft segment.
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公开(公告)号：US20190023228A1
公开(公告)日：2019-01-24
申请号：US16143953
申请日：2018-09-27
Applicant: ROSEMOUNT AEROSPACE INC.
Inventor： Srivatsa Santyar , Guru Prasad Mahapatra
Abstract: A windshield wiper system for an aircraft is provided and includes a motor, an output shaft, a wrap spring and crank rocker mechanism (WSCRM) to which the motor and the output shaft are coupled and a controller. By way of the WSCRM, first directional rotation input to the WSCRM from the motor via a two-stage gear reduction is converted such that the output shaft drives wiper blade oscillation through a first sweep angle and second directional rotation input to the WSCRM from the motor is converted such that the output shaft drives wiper blade oscillation through a second sweep angle. The controller is configured to control the motor such that the first directional rotation is continuously or non-continuously input during first or second flight conditions, respectively, and the second directional rotation is continuously input during third flight conditions.
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