LPG Bombe Pressure Sustaining System
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
LPG bombe pressure drops significantly in low temperatures, leading to poor engine startability and drivability issues in winter conditions, as the pressure inside the fuel tank falls below atmospheric pressure.
Innovation Solution
A pressure sustaining system for LPG bombe that includes a ventilation tunnel with a check valve unit, allowing a predetermined amount of air to remain during manufacturing and maintaining air pressure above atmospheric levels, ensuring stable pressure through compression of air volume, even in cold conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the LPG bombe is sealed tightly during manufacturing, then manufacturing precision is improved, but air cannot be completely removed and a predetermined amount of air remains in the bombe
Solution Approach 1:
The patent applies preliminary action by intentionally leaving a predetermined amount of air (10-20% of total volume) in the bombe during the manufacturing process, rather than attempting to completely remove all air. This pre-planned retention of air serves as a pressure buffer that will be compressed in cold conditions to maintain minimum pressure above atmospheric levels, preventing the need for complete air removal while maintaining manufacturing quality.
2Reliability
If a check valve unit with fixed conversion pressure is installed at the ventilation tunnel opening, then pressure sustaining capability is improved, but device complexity increases
Solution Approach 1:
The patent extracts the pressure regulation function from a complex active control system and implements it through a simple passive check valve unit with fixed conversion pressure. This valve unit is installed at the ventilation tunnel opening and automatically maintains pressure by allowing air escape when pressure exceeds the fixed conversion pressure, eliminating the need for complex sensors, controllers, and active regulation mechanisms while ensuring reliable pressure sustaining capability.
3Reliability
If the ventilation tunnel is formed as one-way, then air emission control is improved, but the tunnel structure becomes more complex
Solution Approach 1:
The patent inverts the conventional approach by making the ventilation tunnel itself one-way rather than using a two-way tunnel with complex valve mechanisms. The one-way ventilation tunnel allows air to escape during manufacturing but prevents external air from entering during operation, achieving reliable air emission control through the tunnel's structural design rather than through complex gating mechanisms, thereby reducing overall system complexity.
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
The system effectively maintains pressure inside the LPG bombe above atmospheric levels, improving engine startability and drivability by ensuring smooth fuel emission and preventing delays or engine shutdowns during cold starts.
Implementation Method 1
a check valve unit, installed at an opening of the ventilation tunnel, with a fixed conversion pressure so as to keep an air pressure inside the LPG bombe above a predetermined value
Implementation Method 2
the volume of air is compressed in the low temperatures so the pressure inside the bombe is kept stable even in the cold start situations
Data Source
AI summary
A pressure sustaining system for an LPG bombe may include the LPG bombe, in which an LPG fuel may be injected and which may be equipped with a ventilation tunnel for emitting the air inside the LPG bombe, and a check valve unit, installed at an opening of the ventilation tunnel, with a fixed conversion pressure so as to keep an air pressure inside the LPG bombe above a predetermined value.