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Electronic control cylinder fuel-injection pump system

An oil injection pump and cylinder technology, applied in the direction of pressure lubrication of lubricating pumps, can solve the problems of difficulty in precise quantitative, timed oil injection, low oil injection pressure of mechanical oil injector, and inability to oil injection frequency, etc., to reduce harmful emissions and operating costs. , easy to promote, long service life

Inactive Publication Date: 2009-06-10
SAILINDE MARINE TECH WUHAN
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] The present invention mainly solves the technical problems existing in the existing mechanical oil injectors such as difficulty in realizing precise quantitative and timing oil injection; it provides an electronically controlled cylinder oil injection pump system capable of realizing precise quantitative and timing oil injection
[0007] The invention also solves the problems of low oil injection pressure of the mechanical oil injector and the inability to adjust the oil injection frequency with the change of the diesel engine working conditions; provides an electronically controlled cylinder oil injection pump system with simple structure, no large waste of lubricating oil, and low cost

Method used

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  • Electronic control cylinder fuel-injection pump system
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Embodiment

[0019] An example of this electronically controlled cylinder oil pump system is a system consisting of an oiler 1, a stepper motor 4 connected to the oiler 1 through a connecting device, and a controller 14 for controlling the operation of the stepper motor 4.

[0020] The oil injection unit includes the cylinder block 5 of the plunger cylinder and the oil pipe 7 with one end communicating with the cylinder block 5 and the other end connected with the nozzle 6. The cylinder block 5 is provided with an oil discharge valve spring 15 to press it against the cylinder block 5 to discharge oil. The drain valve 8 on the valve seat, the cylinder body 5 is a plunger 9 that can slide up and down in the cylinder body 5, the lower part of the plunger is provided with a roller, and the roller 10 is in line contact with the cam 11 under the cylinder body 5. When the oil drain valve 8 is opened, the lubricating oil flows out of the cylinder 5 through the oil drain port, and leads to the nozzle 6...

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Abstract

The present invention relates to a electric-controlled air cylinder fuel-injection pump system of marine vehicle low speed two-stroke crosshead type diesel wherein the electric-controlled air cylinder fuel-injection pump system includes a plunger piston oil pump type oil feeders (1) including three to six oiling unit, a stepping motor (4) connects with the oil feeders (1) through a flange, and a controller (14) used to control the stepping motor (4). Therefore the present invention is provided with the following advantages: 1. convenient usage, low cost and easy of promotion; 2. simple structure, reliable, and durable with long service life; 3. can realize quantitative high-pressure and timing oiling; 4. reasonable and ingenious design, can efficiently utilize lubricant oil, save energy, and reduce nocuousness discharge and operation cost.

Description

Technical field [0001] The invention relates to an electronically controlled cylinder oil injection pump system for a low-speed two-stroke crosshead diesel engine of a ship. Background technique [0002] In the current technology, large-scale marine low-speed diesel engines generally use crosshead two-stroke diesel engines. In the low-speed two-stroke crosshead diesel engine, the upper part of the frame is equipped with a diaphragm and a piston rod stuffing box to separate the cylinder and the crankcase. This structural feature determines that the lubrication between the piston group and the cylinder liner must be used for the cylinder Oil lubricator system. [0003] To ensure the normal operation of marine diesel engines, accurate, stable and reliable cylinder lubrication is very important. The functions of cylinder lubrication are: 1 to ensure the lubrication between the cylinder liner and the piston group, and form an oil film on the metal surface; 2 to take away combustion re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M1/02
Inventor 朱国伟吕林喻方平陈昌竣张晓明
Owner SAILINDE MARINE TECH WUHAN
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