Dosing of cylinder lubricating oil into large cylinders

A lubricating oil and cylinder technology, applied in the field of large diesel engine cylinders, can solve the problems of unsuitable needle valves, large gaps, different oil volumes, etc., and achieve the effect of less maintenance

Active Publication Date: 2014-01-22
HANS JENSEN LUBRICATORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design has the following disadvantages: In order to avoid different oil volumes delivered to each valve, there is a higher requirement for the consistency of flow and viscosity conditions in the oil supply pipe
To prevent potentially contaminated oil from clogging / clogging the gap between the needle and the guide pin hole, a large gap is required, and since the larger gap makes the needle valve unsuitable, a new type of valve body and seat is required

Method used

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  • Dosing of cylinder lubricating oil into large cylinders
  • Dosing of cylinder lubricating oil into large cylinders
  • Dosing of cylinder lubricating oil into large cylinders

Examples

Experimental program
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Embodiment Construction

[0127] figure 1 A complete lubrication system with N cylinders 1 is shown. Each cylinder is equipped with several X injectors 2 connected to a common lubricating oil supply line 31 with a constant supply pressure, for example 30 to 100 bar in size. Oil supply pressure is supplied from the daily oil tank 1000 and transmitted through the hydraulic pump unit 10 .

[0128] The pumping station 10 comprises two pumps 11 , two filters 12 and two non-return valves 13 which prevent the return flow of lubricating oil through the stationary pumps 11 . The pump station also includes two shut-off valves 14 inserted into the oil supply pipe 34 so that the filter 12 can be cleaned during operation. Both pumps 11 back up each other and are automatically activated in the event of a drop in oil pressure.

[0129] The end of the fuel supply pipe 31 is provided with a boost valve 20 or a stepless electronically controlled boost valve 115 (the latter is shown in principle). Usually, the oil pr...

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PUM

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Abstract

There is disclosed dosing system and a method for cylinder lubrication oil in large diesel engine cylinders, e.g. in marine engines, including: - a lubricating oil supply that may be constituted by a pump station or an accumulator; - a supply line from the lubricating oil supply; - a number of injectors having an inlet, an opening / closing valve unit and one or more nozzle apertures for injecting cylinder lubricating oil into an associated cylinder, and which are connected with the supply line and corresponding to the number of cylinders in the engine or a multiple thereof; and - a control unit controlling each opening / closing valve unit. Furthermore, there is disclosed an injector for use in the system.; In order to overcome the drawback of dependence on flow and viscosity in the supply pipes, the system is peculiar in that the dosing system includes a flow measuring unit for each injector and / or for each cylinder, and that the flow measuring units are connected with the control unit for use in a closed circuit regulation.

Description

technical field [0001] The present invention relates to a dispensing system for cylinder lubricating oil in large diesel engine cylinders, such as marine engine cylinders, the dispensing system comprising: [0002] ‐ Lubricant oil supply, consisting of pump stations or reservoirs; [0003] ‐The oil supply pipe is led out from the lubricating oil supply; [0004] ‐ fuel injectors having inlets, on-off valve units and one or more nozzle holes for injecting cylinder lubricating oil into associated cylinders, the injectors being connected to oil supply lines, and its number corresponds to or is a multiple of the number of engine cylinders; and [0005] ‐Control unit to control each on-off valve unit. [0006] The present invention further relates to a method of dispensing cylinder lubricating oil into cylinders of large diesel engines, such as marine engines, comprising the steps of: [0007] ‐ lubricating oil in pressurized lubricating oil supplies consisting of pumping stati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M1/16F01M1/08
CPCF01M1/08F01M1/16F01M2001/083F01M1/14
Inventor 皮尔·比艾库
Owner HANS JENSEN LUBRICATORS
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