{
  "$type": "site.standard.document",
  "description": "A tandem power transmission unit includes a ball screw and a ball nut selectively driven by the ball screw for longitudinal motion relative thereto. A primary piston is operatively coupled to the ball nut. A secondary piston is operatively coupled to the primary piston. A primary chamber is…",
  "path": "/patents/1352087",
  "publishedAt": "2023-10-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T13/745",
    "ZF Active Safety US Inc."
  ],
  "textContent": "A tandem power transmission unit includes a ball screw and a ball nut selectively driven by the ball screw for longitudinal motion relative thereto. A primary piston is operatively coupled to the ball nut. A secondary piston is operatively coupled to the primary piston. A primary chamber is configured to contain hydraulic fluid and is selectively pressurized by reciprocal motion of the primary piston. A secondary chamber is configured to contain hydraulic fluid and is selectively pressurized by reciprocal motion of the secondary piston driven indirectly by longitudinal motion of the ball nut. A first output channel selectively places the primary chamber in fluid communication with at least one component of a brake system for provision of pressurized hydraulic fluid thereto. A second output channel selectively places the secondary chamber in fluid communication with at least one component of a brake system for provision of pressurized hydraulic fluid thereto.",
  "title": "TANDEM POWER TRANSMISSION UNIT AND BRAKE SYSTEMS USING SAME"
}