Reciprocating pump and method of assembling the same

Task: reciprocating piston pump (1) with a drive by an electromagnet (2), a first displacement chamber (3), a second displacement chamber (4), an inlet (5) and an outlet (6), wherein a connecting member (7) for the inlet (5) and a terminal member (8) for the outlet (6) connectable with the housing components (9) and (10) of the reciprocating pump are connected, and wherein the pressing and fastening the connecting members is to allow for the function control of the reciprocating pump without release of particles , In addition, a cost-effective installation of the reciprocating pump is to enable If a fixing of the connecting components (7) and (8) by elastic and / or plastic deformation of the housing components (9) and (10), wherein the housing components (9) and (10) either when they are coated only elastically: Solution are deformed, or if they are not coated, are elastically and plastically deformed. Alternatively, the connector components are attached by welding or bolting, wherein seals prevent with particles (23) and (24) contamination of the inlet (5) or the outlet (6). Application: In heating systems of motor vehicles for conveying and metering of fuel application in mobile exhaust gas purification systems also for metering of additional fuel or for the dosage of liquid reactants in the operation of catalysts for the reduction of nitrogen oxides.