Lubricant pumping system
AssigneeSkf Lubrication Systems Germany GmbH
InventorsJuergen Kreutzkaemper, Stefan Schuermann, Andreas Schoenfeld, Dieter Hess
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Abstract
A lubricant pumping system includes a lubricant pump having a lubricant pumping space, a first seal configured to seal the lubricant pumping space, at least one signal detector, and a leakage detector for detecting leakage of a lubricant from the pumping space through the first seal and sending a signal to the signal detector in response to a detection of the leakage of the lubricant. The signal detector may produce a visual or acoustic output in response to receipt of the signal.
Claims19
A lubricant pumping system comprising:
- a lubricant pump having a lubricant pumping space,
- a first seal configured to seal the lubricant pumping space,
- a leakage collection space on a side of the first seal opposite the pumping space, the leakage collection space being located such that a leakage of a lubricant through the seal collects in the leakage collection space,
- at least one signal detector, and
- a pressure sensor configured to output a wired or wireless signal to the at least one signal detector indicative of a pressure in the leakage collection space.
A lubricant pumping system comprising:
- a lubricant pump having a lubricant pumping space,
- a first seal configured to seal the lubricant pumping space,
- at least one signal detector, and
- leakage detecting means for detecting leakage of a lubricant from the pumping space through the first seal and sending a signal to the signal detector in response to a detection of the leakage of the lubricant,
- wherein the leakage detecting means includes determining means for determining a leakage extent,
- wherein the determining means is configured to determine whether the leakage extent is greater than a predetermined first leakage extent and whether the leakage extent is greater than a predetermined second leakage extent, the second leakage extent being greater than the first leakage extent, and
- wherein the leakage detecting means is configured to generate a first signal when the determined leakage extent exceeds the first leakage extent, and to generate a second signal when the determined leakage extent exceeds the second leakage extent.
A lubricant pumping system comprising:
- a lubricant pump having a lubricant pumping space,
- a first seal configured to seal the lubricant pumping space,
- a leakage collection space on a side of the first seal opposite the pumping space, the leakage collection space being located such that a leakage of a lubricant through the seal collects in the leakage collection space,
- at least one signal detector,
- a pressure sensor configured to output a wired or wireless signal to the at least one signal detector indicative of a pressure in the leakage collection space,
- a pin extending through a housing of the lubricant pump, the pin being connected to a piston configured to slide in response to an increase of the pressure in the leakage collection space,
- a leakage recovery pathway including a check valve,
- a first passage in the housing of the lubrication pump extending from the leakage collection space to the pressure sensor, and
- a second passage in the housing of the lubrication pump extending from the leakage collection space to the check valve.
Dependencies are inferred from the claim text.