DPF Cleaning and Drying with Integrated Pressure Measurement
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Solution Overview
Problem
Existing particulate matter reduction devices in diesel vehicles face cumbersome manual operations for cleaning, drying, and differential pressure measurement due to the accumulation of contaminants, which are performed separately and inefficiently.
Innovation Solution
A hydraulic cleaning apparatus with integrated control unit and components for automated cleaning, drying, and differential pressure measurement, including a support case, water supply pump, ring blower, three-way valve, heater, and sensors, which automate the process and ensure efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual cleaning, drying, and differential pressure measurement are performed separately, then each operation can be completed, but the overall operation becomes very cumbersome and time-consuming
Solution Approach 1:
The patent combines three separate operations (cleaning, drying, and differential pressure measurement) into a single integrated apparatus. The housing contains all three functional units, allowing them to be performed sequentially or simultaneously without requiring separate equipment or manual handling steps, thereby reducing operational complexity and time loss.
Solution Approach 2:
The cleaning apparatus is designed as a multi-functional device that performs cleaning, drying, and differential pressure measurement functions within a single system. The housing accommodates multiple units that can operate independently or in coordination, making the apparatus universally applicable for comprehensive maintenance of the particulate matter reduction filter.
2Reliability
If cleaning water is injected to remove contaminants, then the filter is cleaned, but the subsequent drying and measurement operations remain separate and cumbersome
Solution Approach 1:
The patent integrates the drying unit and differential pressure measurement unit within the same housing that contains the cleaning unit. This merging eliminates the need for separate external equipment for drying and measurement, reducing device complexity while maintaining reliable cleaning, drying, and measurement functions.
Solution Approach 2:
The housing is divided into multiple compartments (cleaning room, water storage room, machine room) with distinct functional units. This segmentation allows each function (cleaning, drying, measurement) to be independently designed and optimized while being part of an integrated system, balancing reliability and complexity.
3Productivity
If separate operations are used for cleaning, drying, and measurement, then each function can be performed, but the overall process becomes inefficient and labor-intensive
Solution Approach 1:
By combining cleaning, drying, and differential pressure measurement into a single integrated apparatus, the patent enables all three operations to be performed in one setup without requiring multiple manual handling steps or separate equipment operations, thereby significantly improving productivity and reducing manual labor requirements.
Solution Approach 2:
The apparatus is designed to perform drying and differential pressure measurement automatically after cleaning, without requiring separate manual operations. The integrated system self-manages the sequence of operations, reducing the need for continuous manual intervention and improving operational efficiency.
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 and efficient cleaning, drying, and differential pressure measurement of particulate matter reduction devices, improving operational efficiency and reducing manual labor.
Implementation Method 1
a water supply pump (25) which is provided in the water storage room (14) and connected to the filter unit (24) by a first water supply pipe (25a) so as to press cleaning water stored in the water storage room (14) and supply the pressed cleaning water to the filter unit (24)
Implementation Method 2
a ring blower (26) provided inside the machine room (15)... controlling cleaning water that has passed through the filter unit (24) or air supplied from the ring blower (26) to be supplied to the connecting member (22)
Implementation Method 3
a heater (31) provided on a middle portion of the air supply pipe (30) to heat air supplied through the air supply pipe (30)
Implementation Method 4
a differential pressure sensor (35) which is provided on the air supply pipe (30) and measures a pressure of the air supplied through the air supply pipe (30)
Implementation Method 5
a filter unit (24) provided on one side of the main body (10)... connected to the filter unit (24) by a first water supply pipe (25a)
Data Source
AI summary
The present invention relates to a novel hydraulic cleaning apparatus for a particulate matter reduction device that enables rapid drying and differential pressure measurement, effectively cleaning, drying, and measuring differential pressure of particulate matter reduction devices in diesel vehicles.When an operator places the particulate matter reduction device (1) on the support case (21) and inputs a cleaning command via the input unit (37), the control unit (36) automatically controls the water supply pump (25), ring blower (26), three-way valve (27), and heater (31) to supply cleaning water and air to the particulate matter reduction device (1). This automated process cleans and dries the device, making operation very simple.Additionally, the differential pressure gauge (38) in the main body (10) measures the differential pressure of the particulate matter reduction device (1), enabling easy determination of whether the particulate matter reduction filter (3) has been sufficiently cleaned.