Integrated Exhaust Postprocessing Component with Common Rail and Pressure Control
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Solution Overview
Problem
Conventional exhaust postprocessing systems with numerous pipelines are complex and prone to erroneous mounting, especially in high-power engines, leading to confusion and inefficiency.
Innovation Solution
An integrated exhaust postprocessing component with a common rail, pressure detecting and adjusting devices, and a mounting system that gathers inlet and outlet pipelines and wiring harnesses on a second support, along with heat insulation and a mounting block to simplify assembly and reduce thermal impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional urea injection system with separate pipelines is used, then complete functionality is achieved, but system complexity and mounting difficulty increase
Solution Approach 1:
The patent integrates the common rail, pressure detecting device, pressure adjusting device, and pipeline connections into a single integrated exhaust postprocessing component. This merging of previously separate elements into one unified structure reduces the number of individual parts and connection points, thereby simplifying the overall system while maintaining complete functionality and improving mounting accuracy
2Ease of operation
If multiple separate pipelines are used for urea injection, then complete fluid control is achieved, but confusion and mounting errors increase
Solution Approach 1:
The integrated component consolidates multiple pipeline connections (inlet and outlet pipelines) into a single structured unit with predefined connection points. This merging approach maintains complete fluid control functionality while significantly reducing pipeline complexity and eliminating the confusion associated with multiple separate pipelines during mounting operations
3Strength
If first support is directly mounted on exhaust pipe, then structural stability is achieved, but thermal stress on components increases
Solution Approach 1:
The patent introduces a mounting block as an intermediary component between the first support and the exhaust pipe. This mounting block acts as a thermal barrier that maintains structural stability while reducing thermal stress transmission to the common rail and other mounted components, thereby protecting them from excessive heat
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates easier mounting and integration with other assemblies while maintaining efficient pressure control and reducing thermal stress, improving the overall efficiency and reliability of the exhaust postprocessing system.
Implementation Method 1
said exhaust postprocessing component is further provided with heat insulation cotton filled in said clearance
Data Source
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AI summary
An exhaust postprocessing component comprises an exhaust pipe (201), a first support (71) installed on the exhaust pipe (201), a common rail (5) installed on the first support (71), an inlet pipeline (532) and an outlet pipeline (542) that are connected to the common rail (5), a sensor (8), and a bundle (9) that is connected to the sensor (8). The common rail (5) comprises a shell (50) and a pressure detection apparatus (51) and a pressure adjustment apparatus (52) that are installed on the shell. The shell (50) comprises an inlet passage (531) and an outlet passage (541). The pressure detection apparatus (51) is connected to the inlet passage (531). The pressure adjustment apparatus (52) is connected between the inlet passage (531) and the outlet passage (541), so as to connect or disconnect the inlet passage (531) and the outlet passage (541). The engine exhaust postprocessing component further comprises a second support (72). The bundle (9), the inlet pipeline (532), and the outlet pipeline (542) are all gathered at the second support (72). In this way, the exhaust postprocessing component is easy to be installed with another component.