US 5,588,465 AGranted

Valve block

AssigneeRobert Bosch GmbH

InventorsEdgar Witowski, Guenter Mayer

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Abstract

The valve block has a baseplate (1) with longitudinal ducts (11 to 15) for incoming and outgoing air, working-air ducts (16, 17) transversely thereto, connecting ducts (21 to 27) which open out in the connection side (18) in a specific hole pattern, and a well (19) for an electrical installation (20). Attached to the connection side (18) of the baseplate is at least one unit which consists of a directional valve (2) and of two pilot valves (3, 4) triggering this. The pilot valves (3, 4) are arranged in a housing (41) which is fastened by means of an attachment face (42) to an end face (43) of the directional valve (2). A plug base (92) projecting on the underside (29) of the housing (41) engages through a perforation (97) of the baseplate into the well (19) and has projecting contact lugs (93, 94) which are connected to contact terminals (95, 96) on the printed circuit board (20). In order to minimize attachment tolerances, there projects laterally at the lower end of the housing (41) of the pilot valves (3, 4), between the directional valve (2) and the baseplate (1), a plate-shaped extension (101) which has passage bores (102 to 107) corresponding to the hole pattern of the baseplate (1).

Claims8

Dependent claims

A valve block, comprising a baseplate provided with connection orifices in a connection side, ducts for incoming and outgoing air, and a well;

a plurality of directional valves arranged next to one another on said connection side of said baseplate with an adapted connection hole pattern;
at least one pilot valve assigned to each of said directional valves;
an electromagnet actuating said pilot valve;
an electrical installation device arranged in said well for extending in said well and having a plug connection;
an electrical connecting plug by which said electromagnet engages into said plug connection of said electrical installation device;
a common housing in which said pilot valve and said electromagnet are arranged and which has a lateral attachment face bearing against an end face of an associated one of said directional valves;
and a plate-shaped extension projecting laterally from said attachment face of said housing near an underside of said housing and assigned to said connecting plug, said plate-shaped extension being arranged so that said directional valve bears with its connection side against said plate-shaped extension and said baseplate bears with its connection side against said plate-shaped extension, said plate-shaped extension having a plurality of passage bores congruent with said connection orifices of said baseplate and of said directional valve.

4 more elements

Dependencies are inferred from the claim text.