Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for starting a large diesel engine and large diesel engine

A diesel engine, a large-scale technology, applied in the direction of engine starting, engine motor starting, engine components, etc., can solve the problem of high starting air consumption, and achieve the effect of economical use and low consumption

Inactive Publication Date: 2017-03-08
WINTERTHUR GAS & DIESEL
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, this high safety margin leads to a rather high consumption of starting air

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The invention will now be described in more detail with the help of embodiments of the invention.

[0036] The invention relates to a method for starting a large diesel engine. The large diesel engines are used, for example, as the main propulsion unit of a ship, or in stationary operation, for example, to drive a large generator to produce electricity. The large diesel engine has at least one cylinder, but typically up to for example up to fourteen cylinders, which are fired during operation according to a predetermined firing sequence which determines the firing sequence of the cylinders. The movement of the pistons rotates a crankshaft connected to the pistons, for example via piston rods, crossheads and connecting rods. The crankshaft is connected, for example, to a propeller for driving a boat or to a generator for producing electrical energy.

[0037] In each block, the top side of the piston and the block head, together with the barrel wall of the block, define...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method is proposed for starting a large diesel engine having a crankshaft and at least one cylinder with a combustion chamber for the combustion of a fuel and with a piston for reciprocating movement between a top dead center position and a bottom dead center position for driving the crankshaft, said method comprising injecting compressed starting air consecutively in each cylinder according to a firing sequence when the piston of the respective cylinder is in the region of the top dead center position, determining a control parameter which is indicative for the firing of the fuel in the respective cylinder and cutting off the compressed starting air for the respective cylinder when the control parameter indicates the firing of the fuel in the respective cylinder. In addition, a large diesel engine, especially a large two-stroke diesel engine, is proposed having a control device being designed for performing this method.

Description

technical field [0001] The invention relates to a method for starting a large diesel engine and to a large diesel engine, in particular a large two-stroke diesel engine, having a control device designed to carry out the method. Background technique [0002] Large diesel engines, which can be designed as two-stroke or four-stroke engines with longitudinal scavenging (e.g. large two-stroke diesel engines), are often used as the main propulsion unit of ships, or in stationary operation, for example, to drive large generators to produce electricity. As a rule here, the engine runs at a constant speed for a considerable period of time, which places high demands on operational reliability and availability. For this reason, long and predictable intervals between maintenance, low wear and economical use of fuel and operating materials are central criteria for machine operation for the operator. [0003] Especially in view of the ever-increasing requirements regarding environmental...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F02N9/04F02B75/32F02D37/02
CPCF02B75/32F02D37/02F02N9/04F02D41/0025Y02T10/30F02B61/045F02B75/02F02B2075/025F02D41/062F02D43/00F02N11/08
Inventor G·苏得沃伊
Owner WINTERTHUR GAS & DIESEL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com