Patent · US Expired

Rotary spiral wall pump with pivotably connected guide means and associated method

US4526521A · kind A · utility

6Cited by

3References

9Claims

0Family size

Assignee

PIERBURG GMBH · DE

Inventors

Rainer Sudbeck · Duisburg, DE
Hans Baumgartner · Viersen, DE
Manfred Brandstadter · Düsseldorf, DE

Key dates

Filing date	Aug 24, 1983
Grant date	Jul 2, 1985
Priority date	—
Expiry date	Aug 24, 2003

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2/025
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A positive displacement rotary pump based on the spiral principle in which the piston is given a complex orbital motion by a crankshaft drive, the piston being also pivoted to a second guide element, this pivot point reciprocating along an open path. The second guide element is constructed to provide compactness and ease of manufacture.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.