Balancing weight for a fan wheel

Patent metadata

Field	Value
Publication number	US-9638214-B2
Application number	US-201114342462-A
Country	US
Kind code	B2
Filing date	Oct 12, 2011
Priority date	Oct 12, 2011
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A balancing weight to balance a blower wheel. The balancing weight is constructed in two pieces consisting of a spring clip and a supplemental weight. The spring clip features a retaining section for securing on the blower wheel and a receptacle section for mounting the supplemental weight.

First claim

The invention claimed is:

1. A balancing weight to balance a blower wheel, comprising, the balancing weight having a two-piece design consisting of a spring clip and a supplemental weight, wherein the spring clip features a means for securing on the blower wheel and a means for mounting the supplemental weight, whereby the spring clip is formed into a S-shape defining a retaining section and a receptacle section, wherein the retaining section is constructed as generally U-shape and transitions via a common web section into a generally U-shaped receptacle section.

2. The balancing weight according to claim 1 , further comprising the spring clip in the form of a one-piece element, bent and formed of a spring-steel sheet.

3. The balancing weight according to claim 1 , further comprising the supplemental weight in the form of a flat, square-shaped body made of a metallic material.

4. The balancing weight according to claim 1 , further comprising the retaining section is configured for attachment to a circumferential edge of the blower wheel with a frictional or a positive lock.

5. The balancing weight according to claim 1 , further comprising the receptacle section and the supplemental weight cooperating such that the supplemental weight can be inserted in the receptacle section with a frictional or a positive lock.

6. The balancing weight according to claim 1 , further comprising the spring clip in lateral edge areas of the common web section form retaining claws protruding inward into the retaining section to engage in the material of the blower wheel.

7. The balancing weight according to claim 1 , further comprising the spring clip at lateral edge areas of an external holding frame of the receptacle section feature retaining claws protruding inward into the receptacle section to engage in the supplemental weight.

8. The balancing weight according to claim 7 , further comprising the supplemental weight features retaining recesses for the engagement of the retaining claws of the spring clip.

9. The balancing weight according to claim 8 , further comprising the supplemental weight features the retaining recesses on two opposite side surfaces.

Assignees

• Hammel Christian
• Moll Jürgen
• Ebm Papst Mulfingen Gmbh & Co Kg

Inventors

• Hammel Christian
• Moll Jürgen

Classifications

• F04D29/281

  for fans or blowers · CPC title

• F04D29/662 Primary

  Balancing of rotors (compensating imbalance G01M1/36) · CPC title

• F01D5/027

  Arrangements for balancing (for balancing rotating bodies in general F16F15/32; for compensating imbalance G01M1/36) · CPC title

• F01D5/10

  Anti- vibration means {(specially adapted for radial flow machines or engines F01D5/04)} · CPC title