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Water injection device for internal combustion engine and internal combustion engine

A technology of water injection equipment, internal combustion engine, applied in the direction of mechanical equipment, internal combustion piston engine, combustion engine, etc., to achieve high flexibility and avoid freezing effect

Inactive Publication Date: 2019-06-25
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, it is desirable to have a cost advantage in production, since the water injection system is a mass component in the vehicle

Method used

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  • Water injection device for internal combustion engine and internal combustion engine
  • Water injection device for internal combustion engine and internal combustion engine
  • Water injection device for internal combustion engine and internal combustion engine

Examples

Experimental program
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Embodiment Construction

[0021] Refer below Figures 1 to 4 A water jetting device 1 according to a preferred first embodiment of the present invention will be described in detail.

[0022] figure 1 In a simplified illustration, internal combustion engine 100 is shown with water injection system 1 , which injects water directly into injection chamber 70 of internal combustion engine 100 . In this case, injection chamber 70 can be, for example, an intake manifold or also a combustion chamber of a cylinder of internal combustion engine 100 .

[0023] as from figure 1 It can further be seen that a delivery device 92 in the form of a pump is provided, which sucks water 10 from the water tank 90 and delivers the water via the pressure line 11 to the water dispensing device 5 .

[0024] Water distribution equipment 5 is available from figure 2 See in detail. The water distribution device 5 (rail) comprises a rectilinear distribution pipe on which in this embodiment four water injectors 2 are arranged....

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PUM

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Abstract

The invention relates to a water injection device for an internal combustion engine comprising at least one water injector (2) and a substantially tubular water distribution device (5) for distributing water to the water injector (5), wherein the water distribution device (5) has a first end (5a) and a second end (5b) and has a first closing device (3) and a second closing device (4), the first closing device (3) encloses the first end portion (5a), the second closing device (4) encloses the second end portion (5b), and the first closing device (3) has a first water connector (6).

Description

technical field [0001] The invention relates to a water injection device for an internal combustion engine and to such an internal combustion engine. Background technique [0002] Due to increasing demands for reducing carbon dioxide emissions, internal combustion engines are increasingly optimized with regard to fuel consumption. However, known internal combustion engines cannot be operated optimally with regard to consumption at operating points with high loads, since the operation is limited by the tendency to knock and the high exhaust gas temperature. A possible measure for reducing the tendency to knocking and for lowering the temperature of the exhaust gas is water injection. In this case, a separate water injection system is known, for example, from WO 2014 / 080266 A1. When using a water injection system in a vehicle internal combustion engine, it can happen that the vehicle is parked at a temperature below the freezing point of water, so that there is a risk that t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/028F02M25/03
CPCF02M25/0221F02M25/025Y02T10/12
Inventor M·里格尔R·马莱茨
Owner ROBERT BOSCH GMBH
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