Eckerle Industrie-elektronik Gmbh

Otto Eckerle Gmbh & Co. Kg

Messrs. Otto Eckerle Gmbh & Co. Kg

Otto Eckerle

Klaus Buchmuller

Stefan Bellemann

An internal-gear machine comprises a casing with an internally toothed annular gear rotatable therein, an externally toothed pinion engaged with the annular gear and a filling member between the annular gear and the pinion. The filling member is subdivided into two portions by a substantially circumferentially extending separating surface. The filling member portions have respectively mutually oppositely disposed recesses which extend from the separating surface and which each have an inclined surface parallel to the axis of the machine. The inclined surfaces are in a wedge-shaped relationship with each other and a sealing roller is arranged in the wedge-shaped space. The sealing roller is pressed against the inclined surfaces by a hairpin spring operatively disposed between the sealing surface and a support surface. The spring limbs bear against the sealing roller and the support surface while the bent end of the spring projects into a free space in the casing.

Internal-gear machine

Internal-gear machine having a divided filling portion

An internal-gear machine such as a pump comprises a casing with an internally toothed annular gear mounted therein. An externally toothed pinion meshes with the internal teeth of the annular gear over a portion thereof, and an arcuate filling member is disposed between the annular gear and the pinion. The filling member has a first end of substantial thickness in the radial direction of the assembly and tapers almost to a point at the second end, and is mounted in the casing by means of at least one mounting pin. The pin is arranged at a spacing from the first end of the filling member, which is towards the intake chamber defined between the annular gear and the pinion, and the pin has a mounting portion engaging into a groove in a side surface of the filling member. The filling member is thus rotatable about the axis of the pin and displaceable by virtue of displacement of the mounting portion in the groove in the filling member.

In an internal gear pump comprising a ring gear and a pinion in mesh therewith to define a lunate cavity therebetween, a segmented part-lunate filler inserted in said cavity has supporting faces contacting a pin which extends axially through the cavity and is rotatable about its longitudinal axis. In operation, the resulting forces acting on the filler segments are transmitted to the pin by said supporting faces and produce a torque about the longitudinal pin axis.

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Malsch, Germany

Otto Eckerle