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公开(公告)号：US11014543B2
公开(公告)日：2021-05-25
申请号：US16237209
申请日：2018-12-31
申请人： Kelsey-Hayes Company
发明人： Joseph Starr , Blaise Ganzel
IPC分类号： B60T8/40 , B60T8/44 , F16D65/14 , F16D65/16 , B60T8/36 , F16D125/36 , F16D125/40 , F16D121/20
摘要： The invention relates to an improved plunger assembly for a vehicle brake system. The plunger assembly is operable as a pressure source to control brake fluid pressure supplied to one or more wheel brakes. The plunger assembly comprises a housing defining a cylinder; a reversible motor supported by the housing and having a rotor; and a linear actuator such as a ball screw/nut mechanism driven by the motor. A plunger head is mounted in the cylinder and driven by the linear actuator in first and second opposite directions. Improvements include the plunger assembly engage at least one seal that defines a portion of a pressurized chamber. An end cap covers the projecting end of the cylinder and is secured to the housing to define a fluid passageway between the end of the cylinder and at least one fluid passageway provided in the housing block.
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公开(公告)号：US20190135251A1
公开(公告)日：2019-05-09
申请号：US16237176
申请日：2018-12-31
申请人： Kelsey-Hayes Company
发明人： Joseph Starr , Blaise Ganzel
摘要： The invention relates to an improved plunger assembly for a vehicle brake system. The plunger assembly is operable as a pressure source to control brake fluid pressure supplied to one or more wheel brakes. The plunger assembly comprises a housing defining a cylinder; a reversible motor supported by the housing and having a rotor; and a linear actuator such as a ball screw/nut mechanism driven by the motor. A plunger head is mounted in the cylinder and driven by the linear actuator in first and second opposite directions. Improvements include a linear actuator rotationally supported on the housing by a bearing to actuate the plunger head connection to a ball screw.
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公开(公告)号：US20190135250A1
公开(公告)日：2019-05-09
申请号：US16237132
申请日：2018-12-31
申请人： Kelsey-Hayes Company
发明人： Joseph Starr , Blaise Ganzel
摘要： The invention relates to an improved plunger assembly for a vehicle brake system. The plunger assembly is operable as a pressure source to control brake fluid pressure supplied to one or more wheel brakes. The plunger assembly comprises a housing defining a cylinder; a reversible motor supported by the housing and having a rotor; and a linear actuator such as a ball screw/nut mechanism driven by the motor. A plunger head is mounted in the cylinder and driven by the linear actuator in first and second opposite directions. Improvements include an elastomeric tubular torque coupler connected to a ball screw/nut anti-rotation member; and a clamped connection at an inner race of a motor bearing for securing the rotor to the ball screw/nut component.
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公开(公告)号：US20190275995A1
公开(公告)日：2019-09-12
申请号：US16237209
申请日：2018-12-31
申请人： Kelsey-Hayes Company
发明人： Joseph Starr , Blaise Ganzel
摘要： The invention relates to an improved plunger assembly for a vehicle brake system. The plunger assembly is operable as a pressure source to control brake fluid pressure supplied to one or more wheel brakes. The plunger assembly comprises a housing defining a cylinder; a reversible motor supported by the housing and having a rotor; and a linear actuator such as a ball screw/nut mechanism driven by the motor. A plunger head is mounted in the cylinder and driven by the linear actuator in first and second opposite directions. Improvements include the plunger assembly engage at least one seal that defines a portion of a pressurized chamber. An end cap covers the projecting end of the cylinder and is secured to the housing to define a fluid passageway between the end of the cylinder and at least one fluid passageway provided in the housing block.
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公开(公告)号：US11021140B2
公开(公告)日：2021-06-01
申请号：US16237176
申请日：2018-12-31
申请人： Kelsey-Hayes Company
发明人： Joseph Starr , Blaise Ganzel
IPC分类号： B60T13/74 , B60T8/40 , F16D65/14 , B60T8/44 , F16D65/16 , B60T8/36 , F16D125/36 , F16D125/40 , F16D121/20
摘要： The invention relates to an improved plunger assembly for a vehicle brake system. The plunger assembly is operable as a pressure source to control brake fluid pressure supplied to one or more wheel brakes. The plunger assembly comprises a housing defining a cylinder; a reversible motor supported by the housing and having a rotor; and a linear actuator such as a ball screw/nut mechanism driven by the motor. A plunger head is mounted in the cylinder and driven by the linear actuator in first and second opposite directions. Improvements include a linear actuator rotationally supported on the housing by a bearing to actuate the plunger head connection to a ball screw.
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公开(公告)号：US20190135252A1
公开(公告)日：2019-05-09
申请号：US16237200
申请日：2018-12-31
申请人： Kelsey-Hayes Company
发明人： Joseph Starr , Blaise Ganzel
摘要： The invention relates to an improved plunger assembly for a vehicle brake system. The plunger assembly is operable as a pressure source to control brake fluid pressure supplied to one or more wheel brakes. The plunger assembly comprises a housing defining a cylinder; a reversible motor supported by the housing and having a rotor; and a linear actuator such as a ball screw/nut mechanism driven by the motor. A plunger head is mounted in the cylinder and driven by the linear actuator in first and second opposite directions. Improvements include, the cylinder projecting from one side of a housing with an end cap covering the projecting end of the cylinder and is secured to the housing block in a generally coaxial relationship with the cylinder. The cylinder and the end cap cooperate to define a fluid passageway between the end of the cylinder and at least one fluid passageway provided in the housing block. The plunger head may include a stop cushion assembly. The stop cushion assembly provides for a cushioned stop if the end of the piston head engages the fixed structure of the plunger assembly in the event of power loss.
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