Door Latch Activator Pneumatic Valve Control
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Solution Overview
Problem
Heavy duty diesel powered trucks and refrigerated trailers face challenges in reducing energy consumption and air pollution when idling, requiring effective synchronization and control of units like camera, interior lighting, and pneumatic sealing systems.
Innovation Solution
A door latch activator system that uses a plunger and pneumatic valve to control pressurized air flow, synchronizing units such as camera, interior lighting, and pneumatic sealing units based on the door latch's open or closed position, converting mechanical action into a signal to manage these systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If manual control of trailer units is used, then operational flexibility is maintained, but energy consumption increases and synchronization efficiency decreases
Solution Approach 1:
The door latch mechanism automatically activates or deactivates pneumatic units based on its own state (latched/unlatched), without requiring external manual control. The system serves itself by using the door latch's mechanical movement to directly control the pneumatic valve, which in turn controls air flow to the sealing units and other trailer systems, eliminating the need for separate manual controls and reducing energy consumption.
Solution Approach 2:
The door latch mechanism performs multiple functions: it secures the door and simultaneously controls the activation/deactivation of pneumatic sealing units, interior lighting, and camera systems. This multi-functionality reduces the need for separate control systems, simplifying overall system complexity while improving energy efficiency through automatic synchronization.
2Productivity
If units are controlled independently, then system simplicity is maintained, but synchronization efficiency and safety decrease
Solution Approach 1:
The pneumatic valve acts as an intermediary between the door latch mechanism and the pneumatic units. The door latch's mechanical movement is converted into pneumatic signal control through the valve, which then distributes pressurized air to activate or deactivate multiple units simultaneously. This intermediary mechanism enables synchronized control without requiring complex direct electrical or mechanical linkages between all components.
Solution Approach 2:
The system uses pneumatic principles to transmit control signals from the door latch to the various trailer units. Pressurized air serves as the control medium, allowing simultaneous activation or deactivation of multiple pneumatic units (sealing units, doors, etc.) based on the door latch state, achieving efficient synchronization through fluid power transmission.
3Loss of energy
If pneumatic control system is implemented, then energy efficiency and synchronization improve, but device complexity increases
Solution Approach 1:
The pneumatic valve is automatically actuated by the mechanical movement of the door latch plunger, which directly pushes or releases the valve mechanism. This self-service operation eliminates the need for separate control valves, switches, or electrical systems, reducing overall system complexity while maintaining energy efficiency through automatic operation based on door state.
Solution Approach 2:
The system replaces potential electrical or mechanical control linkages with a pneumatic control mechanism. The door latch's mechanical plunger movement is converted into pneumatic valve actuation, which then controls air flow to multiple units. This substitution simplifies the control architecture by using pneumatic signals instead of complex electrical wiring or mechanical linkages to all units.
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
Enables efficient control and management of trailer or truck body units, enhancing safety, integrity, and convenience by utilizing air flow to synchronize and activate/deactivate systems based on the door latch status, reducing energy consumption and air pollution.
Implementation Method 1
a pneumatic valve configured to control flow of pressurized air through the pneumatic valve depending on the position of the switch
Data Source
AI summary
A door latch activator system for a trailer or truck body coupled to a door latch, including: a plunger installed in a path of the door latch; a switch configurable into one of an open or closed position by the plunger; and a pneumatic valve configured to control flow of pressurized air through the pneumatic valve depending on the position of the switch, wherein the plunger is moved toward or away from the roller switch by the door latch operating in the path, which activates the pneumatic valve to control the pressurized air flowing through the pneumatic valve.