Patent ID: 8366416
Filing Date: 2013-02-05
Classification: F04B,G01N

Abstract:
1. A pumping device, comprising: a housing having a front face that is at least partially formed by a block of material which extends partially inside the housing, said block consisting of: two solenoid valves fixed on the rear face of the block, a first one said solenoid valves being connected to the admission channel and to a first one of said two through channels for controlling fluid input into the bore and a second one of said solenoid valves being connected to the exhaust channel and to a second one of said two through channels for controlling fluid out from the bore, a plunger sliding leaktightly in a bearing fitted to the bore, said plunger defining, with said bore, a work chamber having a volume varying according to the axial position of the plunger, and a module for axially driving the plunger in the bore to vary the volume, the module being connected to the base of the plunger.