Exhaust Filter Housing Layout for Easy Replacement and Flexible Mounting
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Solution Overview
Problem
Existing exhaust gas purification apparatuses have limited accessibility to filters, leading to increased worker fatigue during replacement and lack flexibility in installation due to compact designs and varying installation spaces in construction machinery.
Innovation Solution
An exhaust gas purification apparatus with a body featuring an opening area, intake and discharge parts spaced apart with a filter at the center, and a body cover that allows easy access for filter replacement, along with a selective reduction catalyst and differential pressure detection member for efficient nitrogen oxide reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the exhaust gas purification apparatus uses a compact design, then the device size is reduced, but the accessibility to filters is limited making replacement difficult
Solution Approach 1:
The exhaust gas purification apparatus is divided into separable components: the main body housing and the filter assembly. The filter can be independently removed from the body through the opening area, allowing maintenance without dismantling the entire device. This segmentation enables easy filter replacement while maintaining a compact overall device structure.
2Device complexity
If the exhaust gas purification apparatus is designed with fixed configuration, then the structure is simplified, but the flexibility in installation space is reduced
Solution Approach 1:
The exhaust gas purification apparatus is designed with universal mounting features including multiple opening areas and standardized body structures. The same apparatus configuration can be installed in various positions and orientations within different construction machinery, adapting to diverse installation spaces without requiring custom designs for each application.
3Volume of moving object
If the filter is positioned deep inside the body, then the compact design is maintained, but the operator fatigue during replacement increases
Solution Approach 1:
The filter assembly is designed to be extractable from the main body through the opening area. The filter can be completely removed from the body housing, allowing operators to access and replace it without reaching deep into the device interior. This extraction capability reduces operator fatigue while maintaining the compact integrated design during normal operation.
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 easy filter replacement, reduces operator fatigue, and allows flexible installation in various construction machinery setups by ensuring stable exhaust gas flow and compact integration of electrical and detection components.
Implementation Method 1
a selective reduction catalyst disposed with the body to reduce nitrogen oxides contained in exhaust gas passing through the filter
Implementation Method 2
a differential pressure detection member supported on the body and configured to detect a differential pressure between exhaust gas flowing into a front of the filter and exhaust gas having passed through the filter
Data Source
AI summary
Disclosed is an exhaust gas purification apparatus for purifying exhaust gas emitted from an engine and discharges the exhaust gas to an outside, the apparatus including: a body formed with an opening area in which one area is opened; an intake part disposed on one side of the body through which the exhaust gas is introduced; a filter disposed inside the body and capable of entry and exit through the opening area; a body cover capable of covering the opening area; a selective reduction catalyst disposed with the body to reduce nitrogen oxides contained in exhaust gas passing through the filter; and a discharge part through which exhaust gas having passed through the selective reduction catalyst is discharged.