Construction Machine Fuel and Urea Water Supply Port Arrangement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing configuration of construction machines, such as hydraulic excavators, does not allow for simultaneous supply of urea water and fuel, leading to reduced workability during maintenance and refilling operations due to the need to access different tanks sequentially.
Innovation Solution
A hollow accommodating case is provided on the front side of the revolving frame, housing both a fuel supply pump and a urea water tank, with juxtaposed fuel and water supply ports, enabling simultaneous access and supply to both tanks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the urea water tank is installed using the tool box provided on the front side of the fuel tank, then the space utilization is improved, but the workability during supply work is lowered because the worker cannot use the upper surface portion of the tool box as a step when the cover is opened upward
Solution Approach 1:
The patent divides the supply ports into two separate locations: one on the tool box (for urea water) and another on the fuel tank (for fuel). This segmentation allows different supply operations to occur at different locations simultaneously, resolving the contradiction by enabling the worker to access both supplies without needing to climb on the tool box when its cover is open.
2Ease of operation
If the cover for opening/closing an opening of the tool box is opened upward during the supply work of the urea water, then the access to the urea water tank is improved, but the worker cannot use the upper surface portion of the tool box as a step, leading to inability to perform both supply works simultaneously
Solution Approach 1:
The patent segments the supply access points by providing a fuel supply port on the fuel tank that is accessible from the ground level, separate from the urea water supply port on the tool box. This allows the worker to access the fuel tank without climbing on the tool box, enabling simultaneous supply operations even when the tool box cover is open for urea water refilling.
3Shape
If the fuel filling opening is provided on an upper surface position of the fuel tank, then the space arrangement is optimized, but the worker needs to ride on an upper surface portion of the tool box as a step to access it, reducing workability
Solution Approach 1:
The patent provides the fuel supply port on the fuel tank at a location that is accessible from the ground level, segmenting it from the urea water supply port on the tool box. This allows the worker to access the fuel tank without needing to climb on the tool box, maintaining optimized space arrangement while improving accessibility and workability.
Data Source
AI summary
A hollow first accommodating case (28) is provided on a front part of a revolving frame (5) at a position on a front side of a fuel tank (23), and a fuel supply pump (34) for supplying a fuel stored in an external fuel storage source to the fuel tank (23) is provided on the fuel tank (23) by being connected. A fuel suction port (35) for sucking the fuel toward the fuel supply pump (34) is provided in the first accommodating case (28) by being opened to an outside, and a urea water tank (25) is provided by being accommodated in the first accommodating case (28). A water supply port (25G) of a urea water is provided in the urea water tank (25) by being opened to the outside, and the fuel suction port (35) and the water supply port (25G) of the urea water are juxtaposed and arranged in the first accommodating case (28).