{
  "$type": "site.standard.document",
  "description": "A pneumatically controlled automatically load-dependent brake pressure control valve (1) for brake systems in vehicles is provided with an actuating piston (22) which is acted upon by load-dependent pressure and is guided in a displaceable manner in the housing (2) of the brake pressure control…",
  "path": "/patents/1110189",
  "publishedAt": "2001-09-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T8/1806",
    "HALDEX BRAKE PROD GMBH [DE]"
  ],
  "textContent": "A pneumatically controlled automatically load-dependent brake pressure control valve (1) for brake systems in vehicles is provided with an actuating piston (22) which is acted upon by load-dependent pressure and is guided in a displaceable manner in the housing (2) of the brake pressure control valve (1), which displaces a control rod (11) in the control part (5) of the brake pressure control valve (1) in a load-dependent manner via an inclined surface (50). The actuating piston (22) is supported on a control spring (30) whose pretension is adjustable. A threaded nut (16) acting on the control spring (30) is provided, with which the utilized spring length of the control spring (30) is adjustable. To adjust the pretension of the control spring (30), a threaded spindle (34) acting on the threaded nut (16) is provided. The threaded nut (16) is rotatable relative to the threaded spindle (34) and the control spring (30) via a longitudinally slotted twist tube (20) surrounding the threaded spindle (34). The threaded spindle (34) on the one hand and the twist tube (20) on the other hand project from the housing (2) and are each provided with an extension (41, 35) enabling rotational engagement. Between the housing (2) and the twist tube (20), a first releasable coupling (38, 39) securing the relative rotation is provided, and between the twist tube (20) and the threaded spindle (34), a second releasable coupling (45, 46) securing the relative rotation is provided.",
  "title": "Pneumatically operated load-dependent brake pressure control valve for braking systems in vehicles"
}