Patent ID: 7198249
Filing Date: 2007-04-03
Classification: B60T,F16K

Abstract:
1. An electromagnetic valve including a first and second valve closure member ( 7 , 8 ) arranged in a housing sleeve ( 1 ), and designed in a coaxial arrangement in the housing sleeve ( 1 ), to open and close a first and second valve passage ( 5 , 6 ), including a pressure fluid inlet ( 13 ) and a pressure fluid outlet ( 19 ) opening into the housing sleeve ( 1 ), with the first valve closure member ( 7 ) designed to open and close the first valve passage ( 5 ) arranged in the second valve closure member ( 8 ) and responds to the electromagnetic excitation of a valve coil and with the second valve closure member ( 8 ) designed to open the second valve passage ( 6 ) under the influence of a compression spring ( 17 ) exclusively when the first valve passage ( 5 ) is opened so that, if pressure fluid prevails in the pressure fluid inlet ( 13 ), it is able to propagate to the pressure outlet ( 19 ) along a flow path inside the housing sleeve ( 1 ), in which the first and the second valve passage ( 5 , 6 ) are positioned, in line wherein the second valve closure member ( 8 ) comprises a stepped axial bore and wherein the compression spring ( 17 ) extends into the stepped bore where its one end abuts the step in the bore and thus biases the second valve closure member ( 8 ) toward the first valve closure member ( 7 ).