Device for controlling the connection to be displaced temporary of two unit which can be pressurized with pressure medium with pressure medium source

A pressure medium and equipment technology, which is applied in the field of equipment for controlling the connection between two units and a pressure medium source, can solve the problems of insufficient safety, reliability and bad, and achieve the effect of simple design

Active Publication Date: 2012-11-21
MAN DIESEL GERMANY BRANCH OFFICE OF MAN DIESEL SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This result can be particularly bad when a device of the type described here is used to control the fuel injection of two different cylinders
In this regard these known devices have proven to be insufficiently safe and reliable

Method used

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  • Device for controlling the connection to be displaced temporary of two unit which can be pressurized with pressure medium with pressure medium source
  • Device for controlling the connection to be displaced temporary of two unit which can be pressurized with pressure medium with pressure medium source
  • Device for controlling the connection to be displaced temporary of two unit which can be pressurized with pressure medium with pressure medium source

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] The main field of application of the invention is two-stroke large diesel engines which can be used, for example, as marine engines. This is an engine with a relatively low rotational speed and a large piston stroke. This type of engine usually includes a number of cylinders arranged in parallel. The basic structure and mode of operation of such engines is known.

[0023] figure 1 Two cylinders 1 are shown schematically. Each cylinder 1 has a combustion chamber 2 delimited by a vertically moving piston 3 , which cooperates here with a crankshaft 5 via a crosshead 4 . The combustion chamber 2 is supplied with air via an intake port (not shown in detail here) arranged in the cylinder liner and controlled by the vertically moving piston 3 and with fuel via an injection valve 6 arranged in the region of the cylinder head. In the illustrated example, two injection valves 6 are provided per cylinder. Exhaust gases produced during the combustion are discharged via a disch...

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PUM

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Abstract

This device is a valve mechanism for connecting a pressure medium source to a machine for giving a shock, and has the valve mechanism having a valve 19 and a main control valve 20 started by an engine signal. A casing for storing a slider 22 cooperating with an operation device has an inlet 23 connected to the medium source and outlets 24 and 25 corresponding to the machine. The outlets can be connected to the inlet when the slider exists in the center, and is released from a load, and can be alternately connected to the inlet(23) when the slider is dislocated from the center. The operation device corresponding to the slider has a device for moving the slider from the center. The device is started when the valve 19 is started, and is stopped when there is no engine signal. The operation device has the device and a centering device of an always operation state. The device overcomes the device . When stopping the device , the slider is placed in the center by the device .

Description

technical field [0001] The invention relates to a device for controlling the time-staggered connection of two pressure-medium-capable assemblies to a pressure-medium source, in particular for the time-staggered activation of engines, in particular two-stroke large diesel engines Two hydraulically actuatable injection devices, preferably assigned to different cylinders, have a control valve device that establishes the connection between the pressure medium source and the unit to be loaded, the control valve device comprising a pilot valve controllable by means of an engine signal. Control valve and a cooperating main control valve designed as a spool valve, the housing of the main control valve containing a movable main spool cooperating with an associated actuating device has a connection to the pressure medium source The inlet and two outlets assigned to the unit to be loaded, these outlets are isolated from the inlet and unloaded when the main spool is in its neutral positio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L9/02F02M47/00F02M57/04F01L9/10
CPCF01L9/02F02M59/105F01L9/10F01L1/34
Inventor P·森克
Owner MAN DIESEL GERMANY BRANCH OFFICE OF MAN DIESEL SE
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