Unlock instant, AI-driven research and patent intelligence for your innovation.

Generation of a vacuum in the crankcase for reducing particles numbers

A crankcase and negative pressure technology, applied in the direction of crankcase ventilation, adding non-fuel substances to fuel, engine components, etc., can solve the problems of increasing particle emissions, oxygen deficiency, etc.

Active Publication Date: 2016-12-21
MAN NUTZFAHRZEUGE AG
View PDF12 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lack of oxygen in the combustion chamber, which increases particle emissions

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Generation of a vacuum in the crankcase for reducing particles numbers
  • Generation of a vacuum in the crankcase for reducing particles numbers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0084] The embodiments described with reference to the figures are partially identical, so that similar or identical components are provided with the same reference numerals, and for their explanation reference is also made to the other embodiments or the description of the figures in order to avoid repetition.

[0085] figure 1 A schematic diagram of a device V for an internal combustion engine is shown.

[0086] The device V comprises a crankcase 1 , a line arrangement (ventilation arrangement) X and an exhaust gas turbocharger 7 .

[0087] The exhaust gas turbocharger 7 often includes a turbine 8 and a compressor 9 . It is preceded by an air filter 10 . Reference numeral 20 denotes the exhaust gas to the exhaust gas installation. Reference numeral 21 designates charge air to a not shown charge air cooler.

[0088] The plant V or internal combustion engine comprises a crankcase 1, one or more combustion chambers 4, one or more pistons 3, a crankshaft drive 12, one or mor...

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

The present invention relates to a device (V) for an internal combustion engine in order to reduce the amount of particles in the crankcase, which is particularly useful for generating negative pressure in the crankcase (1) and / or for use in crankcase (1), the apparatus having a crankcase (1), at least one combustion chamber (4), at least one oil separator (16) connected to the crankcase (1) and at least one pressure regulating device (17) (1) in the crankcase (1), thereby appropriately reducing the pressure difference between the crankcase (1) and the combustion chamber (4).

Description

technical field [0001] The invention relates to a device for an internal combustion engine, in particular a gas engine or other internal combustion engine, which can be operated using the combustion method of a gasoline engine. The device is used in particular to generate a negative pressure in the crankcase, expediently to reduce particle emissions and / or to ventilate the crankcase. The invention also relates to a corresponding operating method. Background technique [0002] In diesel engines of motor vehicles, the venting of the crankcase is usually carried out into the coupling point between the air filter and the compressor of the exhaust gas turbocharger. Here, so-called blow-by air is conducted into the oil separator. An underpressure of the order of magnitude of approximately 30 mbar is usually generated in the crankcase. Until the Euro V regulation, only the particle quality was restricted for commercial vehicles. Starting with Euro VI regulations, commercial veh...

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
IPC IPC(8): F01M13/02F01M13/04F02M25/06
CPCF01M13/021F01M13/04F02M25/06F01M2013/027F01M13/00F01M13/0011F01M2013/0005F01M2013/0044
Inventor F.W.普吕姆R.施泰纳特
Owner MAN NUTZFAHRZEUGE AG