Dual-Pressure Pump System for Firefighting Vehicles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional firefighting vehicles face design complexities and increased costs due to the need for separate high and low pressure fluid delivery systems, which also result in increased weight and power requirements, making them impractical for air transport and limiting their versatility in firefighting operations.
Innovation Solution
A firefighting vehicle with a dual-pressure pump system that includes a first and second pump stage configured to produce different pressure levels, connected by a valving arrangement allowing selective switching between high and low pressure modes, using a common fluid conduit system to maintain efficiency and reduce complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two separate pump systems are provided for high and low pressure operations, then both high and low pressure outputs are achieved, but device complexity increases
Solution Approach 1:
The patent combines two separate pump systems into a single multi-stage pump unit that can operate in series for high pressure and parallel for low pressure. The first and second pump stages are integrated into one device with shared mounting structures, fluid conduits, and control systems, eliminating the need for two completely separate systems while maintaining both high and low pressure capabilities.
Solution Approach 2:
The single pump system is designed to perform multiple functions by switching between series and parallel configurations. The same pump stages can deliver fluid at high pressure when connected in series or at low pressure when connected in parallel, making the system universal for both high pressure and low pressure firefighting operations without requiring separate dedicated systems.
2Adaptability or versatility
If two separate pump systems are provided for high and low pressure operations, then both high and low pressure outputs are achieved, but weight increases
Solution Approach 1:
The patent merges two separate pump systems into one integrated multi-stage pump, eliminating duplicate components such as motors, mounting structures, fluid conduits, and control systems. This consolidation significantly reduces the overall weight of the pump system while maintaining the capability to deliver both high and low pressure outputs through series and parallel configurations.
3Adaptability or versatility
If two separate pump systems are provided for high and low pressure operations, then both high and low pressure outputs are achieved, but power requirements increase
Solution Approach 1:
The patent combines two separate power sources into a single motor or power unit that drives both pump stages. The power system is designed to distribute mechanical energy to the first and second pump stages efficiently, whether operating in series for high pressure or parallel for low pressure, reducing the total power requirements compared to two independent pump systems.
4Adaptability or versatility
If two separate pump systems are provided for high and low pressure operations, then both high and low pressure outputs are achieved, but manufacturing cost increases
Solution Approach 1:
The patent integrates two pump systems into a single manufactured unit with shared components, reducing the total number of parts that need to be produced, inventoried, and assembled. The common mounting structures, fluid conduits, seals, and control systems can be manufactured as standardized components, lowering manufacturing costs compared to producing two completely separate pump systems.
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 the vehicle to provide both high and low pressure outputs with a single set of components, reducing weight, complexity, and power requirements, enhancing versatility and maneuverability while maintaining effective firefighting capabilities.
Implementation Method 1
a first pump stage coupled to the fluid supply and configured to pump fluid at a first pressure, a second pump stage coupled to the first pump stage and configured to pump fluid at a second pressure
Data Source
AI summary
A firefighting vehicle having a dual pressure pump system includes a fluid supply, a first pump stage coupled to the fluid supply and configured to pump fluid at a first pressure, a second pump stage coupled to the first pump stage and configured to pump fluid at a second pressure, the second pressure being substantially different from the first pressure, a fluid manipulator; and a valving arrangement coupling the first pump stage and the second pump stage to the fluid manipulator, the valving arrangement being selectively adjustable between a first position forming a first fluid path and a second position forming a second fluid path, wherein the first fluid path provides the fluid to the fluid manipulator at a first output pressure and the second fluid path provides fluid to the fluid manipulator at a second output pressure.