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Screw pump

A screw pump, screw technology, applied in the direction of pumps, pump components, rotary piston pumps, etc., can solve limited and other problems, achieve uniform mass distribution, avoid downtime, and increase the delivery volume

Active Publication Date: 2015-04-15
STERLING IND CONSULT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the delivery capacity, i.e. the ability to expel a large volume of gas from a space in a short period of time, is limited compared to other pumps

Method used

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Examples

Experimental program
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Embodiment Construction

[0036] figure 1 Among them, the pump of the present invention includes two screws 14 which are housed in a pump housing 15. Due to the pump housing 15 not fully shown, one of the screws 14 can be seen in full length, while the other screw 14 is substantially covered by the pump housing 15. The two screws 14 are engaged with each other, which means that the thread protrusion of one screw 14 engages in the recess between the two thread protrusions of the other screw 14.

[0037] The pump includes a control and drive unit 16 in which an electrically controlled drive motor 17 is provided for each screw 14. The electronic controller of the driving motor 17 is set so that the two screws 14 run completely synchronously with respect to each other, and the thread protrusions of the screw 14 do not contact. In addition, as a safety measure to prevent damage to the screw 14, each screw 14 is equipped with a gear 18. The gears 18 are engaged with each other, and when the electronic synchro...

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PUM

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Abstract

The invention relates to a screw pump having two screws (14), in which each screw (14) has a first thread (19) and a second thread (19). The threads (19) each extend from a suction side (20) to a pressure side (21) and mesh with each other such that the threads (19) are divided into a plurality of working chambers, the volume of which decreases from the suction side (20) to the pressure side (21). According to the invention, the threads (19) have two thread turns.

Description

Technical field [0001] The invention relates to a screw pump with two screws. Each screw is equipped with a first thread and a second thread, the thread extending from the suction side to the output side in each case. The threads engage with each other, with the result that the threads are divided into a plurality of working chambers. In each case, the volume of the working chamber decreases from the suction side to the output side. Furthermore, the present invention relates to a screw used for this type of pump. Background technique [0002] This type of screw pump can be used to generate vacuum. The space to be evacuated is connected to the suction side of the pump, with the result that the pump can suck gas from the space. The gas is compressed in the pump and is output again at a higher pressure on the output side. [0003] The screw pump has a set of advantageous characteristics and therefore can be used in a wide range. However, the delivery capacity, that is, the abili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/08F04C18/16
CPCF04C18/086F04C2220/12F04C2230/605F04C2240/402F04C18/16F04C18/084F04C23/001F04C29/12F04C2250/101F04C23/003
Inventor 海纳·科斯特耶格·泰敏
Owner STERLING IND CONSULT GMBH