Watson Marlow Gmbh

Maso Process-pumpen Gmbh

Ulrich Fromm

Sven-Eric Will

A rotary displacement pump of an undulatory disk type; with a pump housing () comprising a front end plate () and a rear end plate, the pump housing enclosing a stator (), a rotor (), a scraper () and a scraper guide (), a shaft () extending through at least the rear end plate; the stator including a generally semi-circular arc-formed first stator member () and a generally semi-circular arc-formed second stator member (), the stator, the pump housing and the scraper together with the scraper guide defining an inlet and outlet chamber, wherein at least part of the end faces of the first and second stator members being situated in the outlet chamber are oblique so as to provide an obtuse-angled transition to the inner faces of the front end plate and the rear end plate.

Rotary displacement pump for pumping solids emulsions, especially liquid explosives

A rotary displacement pump includes a stator () fixed in a housing (), a rotor including a shaft portion (), a radially protruding web (), a scraper () having an engagement slot () engaging the protruding web (). A guide () retains the scraper () in a circumferential direction and allows the scraper () to move reciprocatingly in a substantially axial direction. The stator () includes first and second members that abut each other in abutment areas having a circular arc configuration.

Vane pump consisting of a two-part stator

A rotary displacement pump includes a stator () fixed in a housing (), a rotor including a shaft portion (), a radially protruding web (), a scraper () having an engagement slot () engaging the protruding web (). A guide () retains the scraper () in a circumferential direction and allows the scraper () to move reciprocatingly in a substantially axial direction. The scraper includes first, second and third grooves (and). The grooves are designed so that they accommodate a portion of the guide () and allow the reciprocating movement of the scraper ().

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Untergruppenbach, Germany

Ulrich Fromm