Angled Diaphragm Piston Pump for Hydraulic Pressure Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing piston diaphragm pumps have limited service life due to uneven hydraulic pressure and gas occurrence issues, leading to frequent membrane and valve replacements.
Innovation Solution
The piston diaphragm pump design positions the diaphragm at an angle (45° to 90°, preferably 70°) with a horizontal cylinder axis and a channel extending obliquely from the cylinder, allowing for a compact arrangement and reduced hydraulic pressure on the membrane, thereby enhancing service life without additional construction costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the diaphragm is arranged in a vertical position with a horizontal cylinder, then the pump structure is simple and easy to manufacture, but the service life is limited due to uneven hydraulic pressure and gas occurrence
Solution Approach 1:
The diaphragm is arranged at an angle of 45° to 90° relative to the vertical direction, creating an asymmetric configuration that optimizes hydraulic pressure distribution and eliminates gas pockets, thereby extending service life without significantly increasing structural complexity
Solution Approach 2:
The channel extending obliquely upwards from the horizontal cylinder introduces a new spatial dimension to the fluid flow path, allowing gas to be effectively vented and hydraulic pressure to be evenly distributed across the diaphragm surface
2Reliability
If the channel extends obliquely upwards from the cylinder to the membrane housing flange, then gas venting and pressure distribution are improved, but the pump occupies more space
Solution Approach 1:
The oblique channel utilizes three-dimensional space efficiently by extending upward at an angle from the horizontal cylinder to the membrane housing flange, achieving effective gas venting and pressure distribution while minimizing the pump's overall footprint
Data Source
Figure 1~2
Figure 3~4
Figure 5~9
AI summary
The invention relates to a positive displacement pump (100), comprising a drive unit (1) and a pump unit (2) having several working chambers (4, 4'), several displacement elements (3, 3'), and at least three cylinders (5), preferably exactly three cylinders (5), wherein the pump unit (2) is double-acting. The invention further relates to a piston diaphragm pump forming a positive displacement pump, wherein a diaphragm stroke is caused by means of working liquid present on the first side of a diaphragm and a medium to be pumped is conducted through a diaphragm chamber bounded by the second side of the diaphragm due to the diaphragm stroke, and the diaphragm stroke is caused at a diaphragm position different from a vertical position of the diaphragm.