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Method for controlling composition of combustible gas mixture and control device thereof

An exhaust device, gas technology, applied in the direction of fuel injection device, charging system, adding non-fuel substances in fuel, etc., can solve the problems of unstable power, loss, engine speed fluctuation of internal combustion engine, etc., to reduce odor interference, simple Fuel emission value, effect of preventing fluctuations in rotation speed

Active Publication Date: 2018-01-30
BAYERISCHE MOTOREN WERKE AG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This leads to fluctuations in the engine speed, loss of scavenging gas for regeneration of the activated carbon bed and thus unstable power of the internal combustion engine

Method used

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  • Method for controlling composition of combustible gas mixture and control device thereof
  • Method for controlling composition of combustible gas mixture and control device thereof

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Embodiment Construction

[0045] Only those aspects of the invention which are of interest here are shown in the figures, all other aspects have been left out for the sake of clarity. Furthermore, the same reference numbers refer to the same components.

[0046] figure 1 A fuel tank venting device 1 according to a first advantageous further development of the invention is shown. The fuel tank venting device 10 is introduced here between the fuel tank 1 and the internal combustion engine 3 and comprises a fuel reservoir 2 with an activated carbon bed for storing fuel, which is connected to the fuel tank 1 via a fuel line 4 . The fuel accumulator 2 is connected to the internal combustion engine 3 via a vent line 5 on the side opposite the fuel tank 1 . For this purpose, vent line 5 includes a tank vent valve 7 , by means of which the inflow of fuel from fuel tank 1 and / or fuel accumulator 2 can be regulated.

[0047] An air intake line 9 is also connected to the fuel store 2 , by means of which scaven...

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Abstract

The invention relates to a method for controlling the composition of a combustible mixture for an internal combustion engine by means of a fuel tank venting device when venting a fuel storage device, the venting device being introduced between the fuel tank and the internal combustion engine and comprising: with an activated carbon bed The fuel storage of the fuel storage; the air intake pipeline that inputs the scavenging gas into the storage, and the air intake pipeline includes an air intake valve; the fuel pipeline that sends the fuel from the fuel tank connected to the exhaust device to the storage; The gas is fed from the reservoir to the exhaust line of the internal combustion engine, in which there is an exhaust valve; and the heat is arranged in the accumulator in the direct flow path of the fuel between the fuel line and the exhaust line Sensitive element, this method comprises the steps: determine the temperature T0 of the activated carbon bed in the direct flow path at time 0 by means of a heat sensitive element before air intake; open the air intake valve if necessary; open the exhaust valve if necessary; The sensor determines the temperature T1 in the direct flow path at time 1; and closes the exhaust valve or increases the scavenging gas when T1>T0.

Description

technical field [0001] The invention relates to a method for controlling the composition of a combustible mixture for an internal combustion engine and to a control device for carrying out the method. Background technique [0002] Fuel tank venting devices are known from the prior art in various embodiments. A fuel tank vent is typically disposed between the internal combustion engine and the fuel tank and includes a fuel reservoir containing a bed of activated carbon. The activated carbon bed is configured to receive and store fuel that has spilled from the fuel tank into the fuel storage, in particular as a result of temperature and / or pressure effects. Corresponding sensors arranged in the activated carbon bed indicate when the activated carbon bed is saturated with fuel. If the activated carbon bed is saturated, exhaust air is introduced and the fuel storage is flushed with purge gas, especially fresh air from the surrounding environment. The fuel discharged from the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M25/08
CPCF02M25/0854F02M2025/0881
Inventor M·施林茨A·朔伊雷尔
Owner BAYERISCHE MOTOREN WERKE AG
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