Patent ID: 6792971
Filing Date: 2004-09-21
Classification: B60T,Y10T

Abstract:
A pilot control valve, comprising:a divided valve housing; at least one axially adjustable control piston arranged in the divided valve housing for actuating a valve seat arrangement to switch compressed air flow between external connections; at least one electromagnetic pilot valve operatively arranged to axially adjust positions of the control piston, the pilot valve being housed in a pilot valve housing part of the divided valve housing that is connected with a relay valve housing part of the divided valve housing; a multiple-bend pressure compensation channel for bleeding a pressureless valve-internal hollow space, the pressure compensation channel being formed in a wall area of a control chamber in the divided valve housing, the pressure compensation channel having an exterior outlet opening and a channel section; a covering hood arranged on the divided valve housing, the covering hood protecting the exterior outlet opening from external water influences; and an exchangeable pressure compensation element provided for the channel section close to the pressureless valve-internal hollow space.