Supply device for viscous media

Patent metadata

Field	Value
Publication number	US-9855574-B2
Application number	US-201615135143-A
Country	US
Kind code	B2
Filing date	Apr 21, 2016
Priority date	Apr 23, 2015
Publication date	Jan 2, 2018
Grant date	Jan 2, 2018

Abstract

Disclosed is a supply device for supplying a consumer with a viscous medium, in particular a lubricant supply device, including at least a reservoir for the viscous medium including a follower piston which includes a ring seal at its circumferential edges and is supported on the viscous medium and which separates the reservoir into a space supplied with a viscous medium and an air space, and a feed pump for feeding the viscous medium from the reservoir to a medium outlet, such that further in the reservoir at least one opening is provided which serves to receive a ventilation apparatus via which the reservoir is in air-exchanging contact with the exterior surroundings, such that the opening is arranged in the reservoir such that in a determined filling state of the reservoir the ring seal at least partially overrides the opening so that the space supplied with a viscous medium is in fluidic connection with the opening.

First claim

The invention claimed is:

1. A supply device for supplying a consumer with a viscous medium, comprising at least
a reservoir for the viscous medium comprising a follower piston which comprises a ring seal at its circumferential edges and is resting on the viscous medium and which separates the reservoir into a space supplied with a viscous medium and an air space,
a feed pump for feeding the viscous medium from the reservoir to a medium outlet, wherein further
in the reservoir at least one opening is provided which serves to receive a ventilation apparatus via which the reservoir is in air-exchanging contact with the exterior surroundings;
characterized in that the opening is arranged in the reservoir such that in a determined filling state of the reservoir the ring seal at least partially overrides the opening so that the space supplied with a viscous medium is in fluidic connection with the opening.

2. The supply device according to claim 1 , wherein the fluidic connection is formed in case of a maximum filling of the reservoir with a viscous medium.

3. The supply device according to claim 1 , wherein the opening is further configured to provide a detachable connection between the reservoir and the ventilation apparatus.

4. The supply device according to claim 1 , wherein the opening and/or the ventilation apparatus comprise at least one sealing element by means of which the connection between the reservoir and the ventilation apparatus may be sealed.

5. The supply device according to claim 3 , wherein the detachable connection may be selected from the group consisting of a form lock, a snap lock, a bayonet lock, a screw lock, a frictional lock, and clamps.

6. The supply device according to claim 1 , wherein the reservoir or the ventilation apparatus comprises a projection which cooperates with a complementarily configured groove at the ventilation apparatus or the reservoir such that the ventilation apparatus may be snapped in at the reservoir.

7. The supply device according to claim 1 , wherein the ventilation apparatus is configured tube-shaped and comprises an air inlet opening and an air outlet opening, wherein the air outlet opening leads to an interior space of the reservoir and the air inlet opening leads to an exterior surrounding, wherein the air inlet opening is arranged below the air outlet opening.

8. The supply device according to claim 7 , wherein the ventilation apparatus comprises a connecting section comprising the air outlet opening which extends basically horizontally and a tube section following the connecting section which extends basically vertically and at whose end opposite to the connecting section the air inlet opening is formed.

9. The supply device according to claim 1 , wherein at the reservoir a first position securing element and at the ventilation apparatus a second position securing element which is complementary to the first position securing element are formed which secure a spatial position of the ventilation apparatus at the supply device.

Assignees

• Skf Lubrication Systems Germany

Inventors

• Beisel Daniel
• Kreutzkaemper Juergen
• Schoenfeld Andreas

Classifications

• F16N2013/063

  with electrical drive · CPC title

• F16N7/38 Primary

  with a separate pump; Central lubrication systems · CPC title

• F16N11/10 Primary

  by pressure of another fluid · CPC title

• B05B9/047 Primary

  supply being effected by follower in container, e.g. membrane or floating piston {, or by deformation of container (B05B9/0838 takes precedence)} · CPC title

• F16N21/00

  Conduits; Junctions (in general F16L); Fittings for lubrication apertures · CPC title