Unlock instant, AI-driven research and patent intelligence for your innovation.

Diaphragm pump

a diaphragm pump and diaphragm technology, which is applied in the direction of pump control, piston pump, positive displacement liquid engine, etc., can solve the problems of increased manufacturing cost, significant increase in maintenance requirements, and risk that the membrane unit is not fully filled or emptied, and achieves simple and low-maintenance means.

Inactive Publication Date: 2015-07-23
HOEV
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a diaphragm pump with simple and low-maintenance means for adjusting pump volume. The pump allows regulation of pump fluid and air in the hydraulic chamber using alternative means. It is reliable in construction and requires less maintenance. The pump has a precise pump volume.

Problems solved by technology

When the piston and eccentric again make contact this will be with a sudden impact which obviously is undesired as it increases the wear on the moveable parts of the diaphragm pump.
However, the alternative means of adjusting the pump volume have until now been complex solutions with a number of additional moveable parts which increase the manufacturing costs as well as maintenance requirements are significantly heightened.
Furthermore, in some situations there is a risk that the membrane unit is not fully filled or emptied e.g. due to problems with fluid flow inside the pump.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Diaphragm pump
  • Diaphragm pump
  • Diaphragm pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0109]FIG. 1 shows a diaphragm pump 1 according to the present invention. The pump 1 comprises a housing 2 and has a motor 3 attached for driving the pump. The housing 2 is rectangular and thus comprises six surfaces whereof three are seen in FIG. 1; A first side 4 in the present orientation forming the top whereon the motor 3 is attached and outer adjustment means 5 is also located. A second side 6, in the present orientation forming the front, comprises a removable plate 7. A third side 8 with an end plate 8a is in the present orientation forming an end of the diaphragm pump 1. The end plate 8a of the diaphragm pump 1 is arranged with means 9 for attaching a diaphragm unit (not shown) and means 9a for attaching the end plate 8a to the housing 2.

[0110]FIG. 2 shows the diaphragm pump 1 seen from the second side 6, where the removable plate 7 has been removed revealing a fluid reservoir 10 and a driving means 11 comprising crank 12 and connecting rod 13 driving a piston (not seen) wi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A hydraulically driven diaphragm pump (1) comprises: a housing having a side (8) arranged to be connected with a membrane unit, a pumping element having a piston barrel (14) and a piston (17); and a fluid reservoir (10) wherein the pumping element is arranged to pump a working fluid from the fluid reservoir (10) during the delivery stroke. The diaphragm pump further comprises means (18,26) for applying a vacuum to the fluid reservoir (10) in order to improve the delivery accuracy and avoid malfunctioning of the pump. The diaphragm pump may further comprise a regulation chamber having adjusting means for adjusting the size of an active volume of the regulation chamber, thereby adjusting the pump delivery.

Description

FIELD OF INVENTION[0001]The invention relates to an improved diaphragm pump and a method of optimizing fluid flow in said pump said pump.BACKGROUND OF THE INVENTION[0002]In known diaphragm pumps the pump volume i.e. the amount of fluid pumped per pump stroke, is often regulated by controlling how far the piston in the pump element may be retracted. This means that when the piston is driven by an eccentric, the piston and the eccentric will not be in contact at all times when the piston cannot be retracted fully (when the pump is adjusted to have a lower pump volume). A piston not in contact with the eccentric at all times will follow the eccentric during part of the rotation of the eccentric and will disconnect from the eccentric when the piston cannot be retracted further. When the piston and eccentric again make contact this will be with a sudden impact which obviously is undesired as it increases the wear on the moveable parts of the diaphragm pump. However, the alternative means...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F04B43/067
CPCF04B43/067
Inventor HOVE, THOMAS
Owner HOEV