Liquid Pump Integrating Pressure Valve Between Suction and Delivery Valves
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional pumps for dispensing liquids, such as water, are bulky due to a lateral appendage supporting the pressure adjusting valve, increasing material usage and cost, and making the valve inaccessible for pressure adjustments.
Innovation Solution
The pressure adjusting valve is integrated between the suction and delivery valves, eliminating the need for a lateral appendage and allowing easier access by orienting it obliquely, thus reducing the pump's dimensions and cost while enhancing ergonomics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pressure adjusting valve is supported by a lateral appendage, then the valve is structurally supported, but the overall dimensions of the pump increase
Solution Approach 1:
The pressure adjusting valve is merged with the head structure by integrating it into the plane defined by the suction valves, eliminating the need for a separate lateral appendage. This combines the support function into the existing head structure, reducing overall pump dimensions while maintaining structural support.
Solution Approach 2:
The head structure is given multiple functions: it not only houses the suction and delivery valves but also provides structural support for the pressure adjusting valve through its extended plane. This multi-functionality eliminates the need for dedicated support structures.
2Reliability
If a lateral appendage is provided to support the pressure adjusting valve, then the valve is structurally supported, but the amount of material increases
Solution Approach 1:
The pressure adjusting valve is merged with the head structure, eliminating the need for separate lateral appendage components. This reduces the total quantity of material required while maintaining structural support through the integrated head design.
3Reliability
If the pressure adjusting valve is positioned laterally, then the valve is structurally supported, but the accessibility for operator adjustments deteriorates
Solution Approach 1:
The pressure adjusting valve is repositioned from a lateral location to an intermediate position within the plane of the suction valves. This dimensional repositioning within the existing structure improves accessibility while maintaining structural integration.
4Volume of moving object
If the pressure adjusting valve is integrated in an intermediate position, then the overall dimensions are reduced, but the valve positioning becomes more complex
Solution Approach 1:
The pressure adjusting valve is merged into the existing head structure at an intermediate position, utilizing the already complex multi-dimensional arrangement of suction and delivery valves. This integration does not significantly increase complexity beyond the existing valve arrangement.
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
This design reduces the overall dimensions and cost of the pump, improves accessibility for operator adjustments, and maintains the ability to vary flow rate and pressure effectively.
Implementation Method 1
the adjusting valve is configured to vary the flow rate of the liquid exiting from the pump by selectively putting a delivery of the pump in fluid communication with a suction of the pump
Implementation Method 2
Piston pumps are known comprising a plurality of pistons that are movable inside respective cylinders in order to increase or decrease the volume of corresponding chambers, so as to cause suction of water into each chamber, or exit of the water from the chamber
Implementation Method 3
Each chamber is provided with a suction valve, through which the water can enter the chamber, and with a delivery valve, through which the water can exit from the chamber
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A pump comprises: - a plurality of pistons (5) each of which is slidable inside a cylinder so as to vary volume of a corresponding chamber (6), - a plurality of suction valves (16), each of which is associated with a chamber (6) and is operable to allow a liquid to enter the chamber (6), the suction valves (16) being arranged in a first sequence, - a plurality of delivery valves (17), each of which is associated with a chamber (6) and is operable to allow said liquid to exit from the chamber (6), the delivery valves (17) being arranged in a second sequence, - an adjusting valve (25) for adjusting pressure of the liquid exiting from the pump (1). The adjusting valve (25) is interposed between two consecutive valves of a sequence chosen from said first sequence and said second sequence.