Method and apparatus for lubricating cylinder surfaces in large diesel engines

Abstract

There is described a method and an installation for lubricating cylinder surfaces 6 in large diesel engines. The installation includes a lubricating apparatus 3 with a number of piston pumps 4 which via connecting lines 5 are connected with lubricating points 6 in the cylinder walls 7. In order to enable electronically controlled regulation of the lubricating oil portion, there is provided an electronic control unit 9 which is connected with a flow regulator 8. The flow regulator includes redirecting valves 12 which are inserted in connecting lines 5 between the lubricating apparatus 3 and thelubricating points 6.

Description

technical field

[0001] The present invention relates to a lubricating system comprising a method and a device for lubricating the inner surface of a cylinder of a large diesel engine, in particular a marine engine, comprising at least one lubricating device having a plurality of piston pumps connected to the cylinder via connecting pipes The different lubrication points in the wall are connected together and supplied with lubricating oil. Background technique

[0002] The lubricating devices are usually designed as pump devices, which are fitted tightly to the respective cylinder and are connected to a reservoir for lubricating oil and to lubrication points in the form of oil spray nozzles at various points on the cylinder wall. Each pump unit comprises a plurality of piston pumps supplying lubricating oil to different lubricating points, and they are driven by a common rotating control shaft on which a cam is applied. As the shaft rotates, the cam with the extrusion head a...

Examples

Embodiment Construction

[0052] figure 1 Shown is an apparatus for lubricating the cylinder inner surface 1 of a cylinder 2 of a large diesel engine. The apparatus shown comprises two lubricating devices 3 each having a series of piston pumps indicated at 4 . Via connecting pipes 5 (only one is shown for each lubricating device), each piston pump is connected to a lubrication point 6 provided in the cylinder wall 7 for lubricating the cylinder inner surface 1 of the cylinder wall. The device also includes a flow regulator 8, which will refer to figure 2 Describe in detail.

[0053] Furthermore, the device comprises an electronic control unit 9 connected to the flow regulator 8 and the lubricating device 3 . As indicated at 10 , the flow regulator may receive an indication signal from the lubricating device 3 .

[0054] figure 2 is a schematic diagram of the flow regulator 8 . figure 2 Three lubrication points 6 and a lubrication device 3 are shown. This state therefore shows that there are t...

technical field

[0001] The present invention relates to a lubricating system comprising a method and a device for lubricating the inner surface of a cylinder of a large diesel engine, in particular a marine engine, comprising at least one lubricating device having a plurality of piston pumps connected to the cylinder via connecting pipes The different lubrication points in the wall are connected together and supplied with lubricating oil. Background technique

[0002] The lubricating devices are usually designed as pump devices, which are fitted tightly to the respective cylinder and are connected to a reservoir for lubricating oil and to lubrication points in the form of oil spray nozzles at various points on the cylinder wall. Each pump unit comprises a plurality of piston pumps supplying lubricating oil to different lubricating points, and they are driven by a common rotating control shaft on which a cam is applied. As the shaft rotates, the cam with the extrusion head a...

Examples

Embodiment Construction

[0052] figure 1 Shown is an apparatus for lubricating the cylinder inner surface 1 of a cylinder 2 of a large diesel engine. The apparatus shown comprises two lubricating devices 3 each having a series of piston pumps indicated at 4 . Via connecting pipes 5 (only one is shown for each lubricating device), each piston pump is connected to a lubrication point 6 provided in the cylinder wall 7 for lubricating the cylinder inner surface 1 of the cylinder wall. The device also includes a flow regulator 8, which will refer to figure 2 Describe in detail.

[0053] Furthermore, the device comprises an electronic control unit 9 connected to the flow regulator 8 and the lubricating device 3 . As indicated at 10 , the flow regulator may receive an indication signal from the lubricating device 3 .

[0054] figure 2 is a schematic diagram of the flow regulator 8 . figure 2 Three lubrication points 6 and a lubrication device 3 are shown. This state therefore shows that there are t...

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