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

Viscous matter piston pump

A material pump and material technology, applied in piston pumps, pumps, non-variable pumps, etc., can solve impossible problems

Active Publication Date: 2007-04-11
FRIEDRICH WILH SCHWING GMBH
View PDF1 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the synchronous control of the rotating slides is mentioned, however, in the described technical situation, the continuous feeding of the pump and the control system delivery cylinder to the common feeding line is unpredictable and impossible

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
  • Viscous matter piston pump
  • Viscous matter piston pump
  • Viscous matter piston pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] Figure 1 shows a perspective profile view of a thick substance pump 1 with two parallel delivery cylinders 3 and 5 placed next to each other, a funnel-shaped pre-filled container 7 open at the top, a Changeover valve. The latter is located in the shell, or in the guide structure 11 , at the bottom of the prefill container 7 . Near the bottom of the basin-shaped guide structure 11, on the side facing the delivery cylinders 3 and 5, a normally always closed maintenance flap 13 can be provided, the function of which will be discussed later.

[0038] The pistons belonging to delivery cylinders 3 and 5 are not shown. The two pistons are driven (preferably hydraulically) independently of each other and can in principle adopt any relative position and velocity within the range of their stroke and drive system. However, it is also possible to operate hydraulically linked, with both cylinders and pistons having the same diameter, eg 250mm.

[0039] The guide structure has two...

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

In a multi cylinder thick materials pump for feeding concrete in particular, whose at least two feeding cylinders feed the thick material from a pre filling container into a feed line, and a shift valve for alternatively connecting the feeding cylinders, having a feed line associated with it, comprising at least two rotationally movable valve bodies, each comprising a straight transfer section between each one of the feeding cylinders and the feed line, connected downstream of the feeding cylinders to a collector tube, the shift valve including at least one, but preferably two rotationally movable rotating slides each of them comprising a straight transfer section for connecting the feeding cylinder respectively associated with it to the feed line, and at least one section blocking the connection. Also a process for operating of this thick materials pump for continuous feeding is described.

Description

technical field [0001] The invention relates to a thick substance pump having the features of the preamble of patent claim 1 . In a broader sense, the invention also relates to the control of said thick matter pump. Background technique [0002] Viscous substance piston pumps have long been used especially on construction sites to convey concrete. Typically, it is a hydraulically operated piston pump, most with two cylinders, that delivers the concrete through a hose or tube. Next, only concrete delivery is mentioned in a simplified sense. The invention is not limited to the application of concrete delivery pumps, but can also be applied to pumps for all similar thick substances. [0003] Such pumps have to fill a single feed line through two selectively filled cylinders and associated pistons. The respective filling cylinders are connected to the feed lines through a movable pipe adapter. Subsequently, the piston pushes out the concrete (pump stroke), while the paralle...

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): F04B7/00F04B15/02
CPCF04B7/0007Y10S417/90F04B15/023Y10T137/86662F04B7/00F04B15/02F04D7/04
Inventor 曼弗雷德·伦哈特
Owner FRIEDRICH WILH SCHWING GMBH