{
  "$type": "site.standard.document",
  "description": "A hydraulic power braking circuit for a vehicle has a reservoir (23) for hydraulic fluid and a pump (14) which draws hydraulic fluid from the reservoir for charging a hydraulic pressure vessel (13) with pressurised fluid. A driver operated pilot valve (11) is provided for directing pressurised…",
  "path": "/patents/1015076",
  "publishedAt": "2011-03-09T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T13/141",
    "AGCO GMBH [DE]"
  ],
  "textContent": "A hydraulic power braking circuit for a vehicle has a reservoir (23) for hydraulic fluid and a pump (14) which draws hydraulic fluid from the reservoir for charging a hydraulic pressure vessel (13) with pressurised fluid. A driver operated pilot valve (11) is provided for directing pressurised fluid from the pressure vessel (13) to open a relay valve (15) which connects the pressurised fluid to brake actuators to apply associated brakes (18). The pilot valve (11) and relay valve (15) both having return lines (21, 22) to dump fluid to the reservoir (23) when not operating the relay valve or brake actuators respectively. Both return lines (21, 22) have U-shaped end configurations (25, 24) within the reservoir (23) which ensure that the ends of these return lines retain fluid therein no matter what inclination of the reservoir occurs during use of the vehicle to avoid the entry of air into the circuit. This arrangement allows the reservoir to be located below the pilot and relay valves without the risk of air entering the system.",
  "title": "Power braking system"
}