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

Pumping arrangement

A pumping, reciprocating pump technology, applied in pump devices, jet devices, pumps, etc., can solve problems such as high investment costs, complex electrical devices, unattractiveness, etc.

Inactive Publication Date: 2003-12-31
ITW LTD
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been proven that using servo motors is very expensive
The servo motor itself is an expensive thing, and also requires expensive auxiliary control equipment including a digital encoding device that provides an indication of the piston position in the piston stroke at any time, relatively complex servo control equipment using professional computer software, and complex electrical devices. , and require senior electrical experts to maintain this system
Servomotor-driven pumping systems therefore require high investment costs, and while energy savings can be achieved with such systems compared to conventional hydraulic drive-motor systems, they have proven to be unattractive for future users

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
  • Pumping arrangement
  • Pumping arrangement
  • Pumping arrangement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Referring to the accompanying drawings, the pumping device 11 provides a path for a pressurized liquid paint in the paint circulation system 12, and it includes a reciprocating piston pump 13, which is preferably a forward and return pump 13 piston 14. The stroke is a double-acting pump that outputs pressure to form a stroke. The reciprocating piston pump 13 is driven by an AC induction motor 15 through a transmission 16. The transmission 16 includes a converter that converts rotary motion into linear motion, and the latter includes a converter that converts the rotary motion of the output shaft of the induction motor 15 into linear motion. A linearly reciprocating ball-type or roller-screw type device of the piston 14 of the pump 13 . Conventionally, there is a gearbox 17 between the electric motor 15 and the transmission 16 to reduce the rotational speed of the output shaft of the electric motor 15 .

[0016] The output of the pump 13 is connected to a flow line 18 o...

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 pumping arrangement for a paint circulation system comprising a reciprocating pump (13), and characterised by an alternating current induction motor (15), a rotary-to-linear motion converter (16) coupling the output of the induction motor (15) to a drive input of the pump (13), an alternating current frequency inverter (24a) controlling said induction motor, switch means (26) for reversing rotation of the induction motor (15) at the ends of the stroke of the reciprocating pump (13), and, a surge eliminator (28) communicating with the output side of said pump (13) to augment the pressure in the circulation system during stroke reversal of the pump.

Description

technical field [0001] The present invention relates primarily, but not exclusively, to a pumping (suction) device for pumping liquid paint in a paint circulation system in which one or more paint spray guns may be provided. Background technique [0002] It is known to use a reciprocating piston pump to pump liquid paint around a line comprising a storage container and one or more outlets supplying one or more paint spray guns. Reciprocating pumps are generally better than rotary pumps because they are less likely to damage pigments and other inclusions in liquid paint. [0003] It is well known to drive reciprocating pumps using the hydraulic pressure of air or hydraulic motors. However, such motors are relatively wasteful of energy, so efforts have been made to replace hydraulic motors with electric motors to save energy and minimize operating costs. [0004] One problem with reciprocating pumps is that when the pump's piston reverses its stroke, it loses its pressure at...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F04B15/02F04B9/02F04B11/00F04B17/03
CPCF04B11/0016F04B2203/0204F04B2201/0201F04B9/02F04B17/03F04D13/06B05B12/08
Inventor 奈杰尔查尔斯伍德
Owner ITW LTD