Patent · US Expired

Wobbling drive of an axial piston machine

US6318238A · kind A · utility

7Cited by

9References

15Claims

0Family size

Assignee

Alfred Kärcher GmbH & Co. KG · DE

Inventors

Klaus Becker · Wetter, DE
Berthold Braun · Hochstädt, DE
Boris Baumann · Hanau, DE
Robert Nathan · Atlanta, US

Key dates

Filing date	Apr 14, 2000
Grant date	Nov 20, 2001
Priority date	—
Expiry date	Apr 14, 2020

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H23/00
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A wobble drive in an axial piston machine, particularly the axial piston pump of a high-pressure cleaning device, having a wobble body (1) rotatable around an axis of rotation (D) and a wobble plate (2) driving with its front side at least one piston (10a) positioned parallel to the axis of rotation D, a roller bearing (3) positioned between the wobble body (1) and the wobble plate (2) exhibiting a bearing axis inclined to the axis of rotation (D). In order to insure even at elevated rotary speeds of the wobble body (1) and thus also of the rolling bodies (6) that the rolling bodies (6) are securely held in their races (4,5) in spite of the elevated centrifugal forces acting on them, it is proposed that the wobble plate (2) be provided with a rim (7) overlapping the wobble body (1), with the rolling bodies (6) being positioned between the rim (7) and the wobble body (1).

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