EP 0108944 A1 19840523 - Positive displacement member of a piston pump.
Title (en)
Positive displacement member of a piston pump.
Title (de)
Verdrängerteil einer Kolbenpumpe.
Title (fr)
Pièce de refoulement pour une pompe à piston.
Publication
Application
Priority
DE 3238667 A 19821019
Abstract (en)
1. Displacement component of a piston pump for abrasive and/or corrosive liquids, comprising a piston rod and a piston made of oxide-ceramic material that is secured to the rod by means of a detachable connection, the piston having a blind hole extending in the direction of the piston crown, characterised by the following combination of features : the blind hole (5) is cut by a recess (7) that passes through the skirt (6) of the piston (2), a threaded component (8) is introduced into this recess (7), the base (4) of the piston is held by an adaptor (9) secured thereto by means of a screw connection which engages the threaded component through the blind hole (5) and coupled to the piston rod (1).
Abstract (de)
Der Kolben (2) einer Kolbenpumpe besteht aus oxidkeramischem Material. Er weist ein in Richtung des Kolbenbodens (3) verlaufendes Sackloch (5) auf, das von einer den Mantel (6) des Kolbens (2) durchdringenden Ausnehmung (7) geschnitten wird. Die Ausnehmung (7) nimmt ein Gewindestück (8) auf, das von einem Adapter (9) erfaßt wird, der durch das Sackloch (5) in das Gewindestück (8) eingreift und so die Kolbenstange (1) mit dem Kolben (2) verbindet.
IPC 1-7
IPC 8 full level
F04B 15/04 (2006.01); F04B 53/14 (2006.01)
CPC (source: EP)
F04B 53/147 (2013.01)
Citation (search report)
- DE 2939284 A1 19810402 - FELDMUEHLE AG
- US 1195546 A 19160822
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0108944 A1 19840523; EP 0108944 B1 19860326; AT E18790 T1 19860415; DE 3238667 A1 19840426; DE 3362709 D1 19860430; DK 452983 A 19840420; DK 452983 D0 19830930; FI 73793 B 19870731; FI 73793 C 19871109; FI 833740 A0 19831014; FI 833740 A 19840420
DOCDB simple family (application)
EP 83110319 A 19831015; AT 83110319 T 19831015; DE 3238667 A 19821019; DE 3362709 T 19831015; DK 452983 A 19830930; FI 833740 A 19831014