LUBRICATION SYSTEM INCLUDING AN ENERGY-GENERATING ELEMENT

Abstract

A lubrication system for supplying a lubricant to at least one lubrication point includes at least one lubricant line and at least one lubricant system component that is connected to the lubricant line. The lubrication system component includes at least one movable element and/or the lubricant line includes at least one movable portion. The system also includes at least one energy-generating element, such as a piezo element or a magnet and coil, configured to interact with the at least one movable element and generate energy from a movement of the at least one moveable element.

Claims

1. A lubrication system for supplying a lubricant to at least one lubrication point, the lubrication system comprising: at least one lubricant line, and at least one lubricant system component that is connected to the lubricant line, wherein the lubrication system component includes at least one movable element and/or the lubricant line includes at least one movable portion, further including at least one energy-generating element configured to interact with the at least one movable element and generate a current from a movement of the at least one moveable element.

2. The lubrication system according to claim 1, wherein the lubrication system component is a lubricant pump or a lubricant distributor or a lubrication monitoring device or a valve.

3. The lubrication system according to claim 1, wherein the lubrication system component includes the at least one movable element, wherein the at least one moveable element comprises a piston, and wherein the at least one energy-generating element is acted upon by a pressure generated by a movement of the piston.

4. The lubrication system according to claim 1, wherein the energy-generating element is configured to provide energy for operating the at least one lubrication system component.

5. The lubrication system according to claim 1, wherein the lubrication line includes the at least one movable portion and wherein the at least one movable portion is an elastically expandable and contractable hose of the lubricant line.

6. The lubrication system according to claim 1, wherein the energy-generating element is a piezo element

7. The lubrication system according to claim 1, wherein the energy-generating element is an inductive element.

8. The lubrication system according to claim 1, furthermore including at least one sensor element configured to receive energy generated by the energy-generating element.

9. The lubrication system according to claim 8, wherein the energy-generating element is configured to supply the at least one sensor element with energy such that the sensor element is capable of detecting at least one detection variable.

10. The lubrication system according to claim 1, further including a signal transmission device configured to wirelessly transmit and/or to receive a signal provided by a lubrication system component, wherein the signal transmission device is supplied with energy from the energy-generating element; and/or wherein the lubrication system includes at least one sensor element, and the at least one sensor element includes a signal transmission device that is configured to wirelessly transmit a signal detected by the sensor element, wherein the signal transmission device is supplied with energy by the energy generated by the energy-generating element.

11. The lubrication system according to claim 1, further comprising at least one energy storage device that is associated with the energy-generating element and is configured to store the energy generated by the energy-generating element.

12. The lubrication system according to claim 11, wherein the energy storage device is connected to at least one lubrication system component and/or to at least one sensor element in order to supply the lubrication system component and/or the sensor element with energy.

13. A lubrication system for supplying a lubricant to at least one lubrication point, the lubrication system comprising: at least one lubricant line, and at least one lubricant system component that is connected to the lubricant line, wherein the lubrication system component includes a piston and/or the lubricant line includes a movable portion, further including a piezo element positioned relative to the piston such that a pressure generated by a movement of the piston generates a voltage across the piezo element or positioned relative to the moveable portion such that a movement of the movable portion generates the voltage across the piezo element.

14. The lubrication system according to claim 13 including a battery or a capacitor operatively connected to the piezo element for storing energy generated by the piezo element.

15. The lubrication system according to claim 14, including a signal transmission device electrically connected to the battery or to the capacitor.

16. A lubrication system for supplying a lubricant to at least one lubrication point, the lubrication system comprising: at least one lubricant line, and at least one lubricant system component that is connected to the lubricant line, the lubrication system component including a piston, further including a magnet connected to the piston for movement with the piston and a coil mounted adjacent the piston such that movement of the a piston induces a current in the coil.

17. The lubrication system according to claim 16 including a battery or a capacitor operatively connected to the coil for storing energy generated by the magnet and the coil.

18. The lubrication system according to claim 17, including a signal transmission device electrically connected to the battery or to the capacitor.

Description

BRIEF DESCRIPTION OF THE DRAWING

[0023] FIG. 1 shows a schematic depiction of a first preferred exemplary embodiment of an inventive lubrication system.

DETAILED DESCRIPTION

[0024] In the following, identical or functionally equivalent elements are designated by the same reference numbers.

[0025] FIG. 1 schematically shows a lubrication system 1 including a lubricant pumping device 2 that is connected to a lubricant line 4 in order to pump lubricant to a to-be-lubricated point 6 that is depicted here as a bearing. In order to deliver a precisely metered amount of lubricant or distribute lubricant generally onto the bearing, a lubricant distributor device 8 is furthermore provided that is disposed upstream of the bearing 6. The lubricant distributor device can be, for example, a single-line distributor or progressive distributor. As can be further seen from FIG. 1, a sensor unit 10 is further provided on the lubricant line 4, which sensor unit 10, for example, monitors a lubricant flow through the line 4, or its temperature or viscosity. In the exemplary embodiment depicted in FIG. 1 the sensor unit 10 is a pressure switch that measures the pressure of the lubricant transported in the lubricant line 4.

[0026] As furthermore schematically depicted in FIG. 1 the lubricant pumping device 2, the lubricant distributor device 8, or the sensor unit includes pistons 12, 13, 14 that ensure a distributing or pumping or metering of lubricant. These pistons 12, 13, 14 represent, for example, moving elements. The moving elements, here the pistons 12, 13, 14, furthermore interact with energy-generating elements 16, 17, 18, 19, wherein an inductive element 18 is schematically disposed on the lubricant distributor element, while a piezo element 16, 17 is provided on the lubricant pumping device 2 and on the sensor 10. Here the components 2, 4, 8, 10 of the lubrication system not only include a type of energy-generating element; rather, it is also possible, as shown, for example, in the lubricant pumping device 2, to provide different energy generating elements 16, 19 on a component. Thus, for example, an inductive energy-generating element 19 can further be provided on the lubricant pumping device 2.

[0027] These energy-generating elements 16, 17, 18, 19 act in a known manner, wherein the piezo elements 16, 17 obtain electrical energy from a deforming of the element, while the inductive elements 18, 19 generate current via two coils moved with respect to each other. These energy-generating elements interact with the moving elements in order to generate energy that is provided for use in the lubrication system 1. The energy generation is illustrated by the symbol for current.

[0028] This energy can be provided, for example, to a sensor element 20 attached to one of the components, so that this sensor element 20 is capable of capturing, detecting, or monitoring a detection variable. Alternatively or additionally the energy can also be provided, for example, to a signal transmission device 22 that is configured in the illustrated exemplary embodiment as wireless signal transmission device 22. Using this wireless signal transmission device 22 a detection variable, for example, of the sensor 10 can be transmitted to a remotely disposed control device 24 or to a remotely disposed user. Alternatively or additionally a signal can also be issued by the control device 24, which signal, for example, is received by the signal transmission device 22 of the lubricant distributor device 8 in order to control the amount of lubricant to be dispensed on the bearing 6.

[0029] Furthermore, an energy storage unit 26 can be provided in the lubrication system 1, which energy storage unit 26, for example, interacts with the energy-generating element 18 or 19 in order to store energy for a later or energy-intensive application. Thus, for example, an emergency power supply for a motor 28 of the lubricant pumping device 2 can be provided via the stored energy. The energy transfer can be effected, for example, using a cabling 30.

[0030] Overall, using the inventive lubrication system a largely self-sufficient lubrication system can be provided whose individual and often difficult-to-access components can be supplied directly with self-generated energy. Since a variety of elements including moving parts are present in lubrication systems, there is sufficient possibility to generate energy using, for example, piezo elements or inductive elements. For example, it is also possible to design the lubricant line at least sectionally from an elastic material such that with pulsating pressure, surges of the lubricant guided through the lubricant line an elastic expanding and contracting of the lubricant line is generated, which in turn represents a moving element that interacts with an energy-generating element. In particular the usually pulsating lubricant pumping in lubrication systems thus already represents a movement in itself that can be used for generating energy.

[0031] Representative, non-limiting examples of the present invention were described above in detail with reference to the attached drawings. This detailed description is merely intended to teach a person of skill in the art further details for practicing preferred aspects of the present teachings and is not intended to limit the scope of the invention. Furthermore, each of the additional features and teachings disclosed above may be utilized separately or in conjunction with other features and teachings to provide improved lubrication systems.

[0032] Moreover, combinations of features and steps disclosed in the above detailed description may not be necessary to practice the invention in the broadest sense, and are instead taught merely to particularly describe representative examples of the invention. Furthermore, various features of the above-described representative examples, as well as the various independent and dependent claims below, may be combined in ways that are not specifically and explicitly enumerated in order to provide additional useful embodiments of the present teachings.

[0033] All features disclosed in the description and/or the claims are intended to be disclosed separately and independently from each other for the purpose of original written disclosure, as well as for the purpose of restricting the claimed subject matter, independent of the compositions of the features in the embodiments and/or the claims. In addition, all value ranges or indications of groups of entities are intended to disclose every possible intermediate value or intermediate entity for the purpose of original written disclosure, as well as for the purpose of restricting the claimed subject matter.

REFERENCE NUMBER LIST

[0034] 1 Lubrication system [0035] 2 Lubricant pumping device [0036] 4 Lubricant line [0037] 6 To-be-lubricated point [0038] 8 Lubricant distributor device [0039] 10 Integrated sensor unit [0040] 12, 13, 14 Pistons [0041] 16, 17, 18, 19 Energy-generating element [0042] 20 Functionally associated sensor [0043] 22 Signal transmission device [0044] 24 Control device [0045] 26 Energy storage unit [0046] 28 Motor [0047] 30 Cable