Psg Germany Gmbh

Simon Dario Nettesheim

Praveen Chandrashekaraiah

Charankumar Kodandaramaiah

Daniel Gisbertz

An assembly for a diaphragm pump includes: a body defining a plurality of diaphragm chambers spaced apart about a body axis, wherein each diaphragm chamber defines a membrane opening, an inlet chamber in fluid communication with each diaphragm chamber, and an outlet chamber in fluid communication with each diaphragm chamber; and a plurality of flexible membranes that each comprise an outer edge, wherein the body is configured to clamp the outer edge of each membrane along a corresponding membrane opening to seal a corresponding one of the diaphragm chambers; wherein the membranes are configured to deflect substantially in parallel to the body axis to suction fluid into each diaphragm chamber from the inlet chamber and discharge fluid from each diaphragm chamber into the outlet chamber; wherein each membrane comprises a coupling section configured to couple the membrane to a pump drive and arranged along a diaphragm axis that extends in parallel to the body axis, and a deflection section arranged radially outwardly from the coupling section and configured to deflect in response to movement of the pump drive; and wherein movement of the coupling section radial to and about the diaphragm axis is restricted to suppress movement of the deflection section radial to and about the diaphragm axis.

Diaphragm pumping

A tightening device for applying a preload to a fastening element, wherein the fastening element is suitable for fastening a diaphragm pump head part to a drive system for impressing movement on a diaphragm of the diaphragm pump head part in a device for conveying fluid. The tightening device has a support with support surface for supporting a bearing surface of the fastening element, wherein the support has a threaded bore through which a screw element penetrates. The screw element has a contact surface at its front end, wherein the contact surface of the screw element and the support surface of the support face opposite directions, and the distance between the contact surface of the screw element and the support surface of the support can be changed by screwing in or unscrewing the screw element.

Tightening device for a device for conveying fluid and a device for conveying fluid

The invention relates to a valve assembly for a diaphragm pump, the valve assembly having an inlet side and an outlet side. A first outlet channel () leads from an inlet opening () arranged on the inlet side to an outlet opening () arranged on the outlet side, and a second outlet channel () leads from an inlet opening () arranged on the inlet side to an outlet opening () arranged on the outlet side. An inlet channel () has a first part () and a second part (), the second part () having an outlet opening (), which is arranged on the inlet side, and the first part () extending at an angle to the second part (). An inlet valve body () is provided at the outlet opening () of the second part () of the inlet channel (), and a first outlet valve body () is provided at the outlet opening () of the first outlet channel (). The outlet opening () of the second outlet channel () is closed and opened either by a second outlet valve body or also by the first outlet valve body ().

Valve assemblies for a diaphragm pump

A diaphragm pump with at least one pump chamber, the pump chamber being connected to an inlet chamber via an inlet valve and to an outlet chamber via two outlet valves. The inlet valve having an inlet opening that can be closed by an inlet valve body and the outlet valve respectively having an outlet opening that can be closed by an outlet valve body. The two outlet valves and the inlet valve form a triangle in a projection onto a projection plane transverse to the longitudinal axis of the pump chamber.

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Krefeld, Germany

Simon Dario Nettesheim