Sampling pumps and gas analyzers

Patent metadata

Field	Value
Publication number	US-11287410-B2
Application number	US-202016878243-A
Country	US
Kind code	B2
Filing date	May 19, 2020
Priority date	Jan 19, 2012
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

Provided are sampling pumps and gas analyzers using the sampling pumps. The sampling pump may include at least one reciprocating pump set and a control system. Each reciprocating pump set can include two reciprocating pumps. The control system can output drive signals for controlling reciprocating drawing and compressing operations of the reciprocating pumps, where the control system may be designed to output the drive signals that cause the two reciprocating pumps within the same set to provide opposing impact directions at the same time.

First claim

The invention claimed is:

1. A sampling pump, comprising:
at least one connection carrier;
at least one reciprocating pump set comprising two reciprocating pumps,
wherein each of the two reciprocating pumps comprises a rotary motor and an outlet nozzle,
wherein the two reciprocating pumps are separated and mounted on the at least one connection carrier;

a base separated from the at least one connection carrier, wherein the at least one connection carrier and the two reciprocating pumps are mounted on the base;
a control system in operable communication with each of the two reciprocating pumps and operable for outputting drive signals to the rotary motor of each of the two reciprocating pumps, wherein the drive signals cause the two reciprocating pumps within a same reciprocating pump set to simultaneously provide opposing impact force directions; and
at least one integrated output channel comprising each outlet nozzle of the two reciprocating pumps.

2. The sampling pump of claim 1 , wherein the drive signals have identical amplitudes and different or identical phases depending on whether the two reciprocating pumps are in a same or opposing orientation, respectively, along a common line to cause the two reciprocating pumps within the same reciprocating pump set to simultaneously provide opposing impact force directions.

3. The sampling pump of claim 2 , wherein the two reciprocating pumps within the same set are in a same orientation, wherein the drive signals provided to each of the two reciprocating pumps have identical amplitudes and a phase deviation of about 180°.

4. The sampling pump of claim 2 , wherein the two reciprocating pumps within the same set are in an opposing orientation, and wherein the drive signals provided to each of the two reciprocating pumps have identical phases.

5. The sampling pump of claim 1 , wherein the two reciprocating pumps within the same set are linear reciprocating pumps with an identical impact force.

6. The sampling pump of claim 1 , wherein the at least one connection carrier is a connection plate that is affixed to side surfaces of the two reciprocating pumps in the same set.

7. The sampling pump of claim 1 , wherein the at least one connection carrier and the two reciprocating pumps forms an integral structure.

8. The sampling pump of claim 1 , wherein the at least one integrated output channel communicates to each outlet nozzle of the two reciprocating pumps within the same set.

9. The sampling pump of claim 1 , further comprising at least two gas outlets mounted on the base.

10. The sampling pump of claim 9 , wherein the at least two gas outlets are coupled to the at least one integrated output channel to gather a gas outputted from the two reciprocating pumps.

11. A gas analyzer, comprising:
a gas measurement module for gas detection and analysis; and
a sampling pump for providing the gas measurement module with gas to be measured, wherein the sampling pump comprises:
at least one connection carrier;
at least one reciprocating pump set comprising two reciprocating pumps,
wherein each of the two reciprocating pumps comprises a rotary motor and an outlet nozzle,
wherein the two reciprocating pumps are separated and mounted on the at least one connection carrier;

a base separated from the at least one connection carrier, wherein the at least one connection carrier and the two reciprocating pumps are mounted on the base;
a control system in operable communication with each of the two reciprocating pumps and operable for outputting drive signals to each rotary motor of the two reciprocating pumps, wherein the drive signals cause the two reciprocating pumps within a same reciprocating pump set to simultaneously provide opposing impact force directions; and
at least one integrated output channel comprising each outlet nozzle of the two reciprocating pumps.

12. The gas analyzer of claim 11 , wherein the two reciprocating pumps within the same set are linear reciprocating pumps with an identical impact force.

13. The gas analyzer of claim 11 , wherein the drive signals have identical amplitudes and different or identical phases depending on whether the two reciprocating pumps are in a same or opposing orientation, respectively, along a common line to cause the two reciprocating pumps within the same reciprocating pump set to simultaneously provide opposing impact force directions.

14. The gas analyzer of claim 13 , wherein the two reciprocating pumps within the same set are in a same orientation, wherein the drive signals provided to each of the two reciprocating pumps have identical amplitudes and a phase deviation of about 180°.

15. The gas analyzer of claim 13 , wherein the two reciprocating pumps within the same set are in an opposing orientation, and wherein the drive signals provided to each of the two reciprocating pumps have identical phases.

16. The gas analyzer of claim 11 , wherein the at least one connection carrier is a connection plate that is affixed to side surfaces of the two reciprocating pumps in the same set.

17. The gas analyzer of claim 11 , wherein the at least one connection carrier and the two reciprocating pumps forms an integral structure.

18. The gas analyzer of claim 11 , wherein the at least one integrated output channel communicates to each outlet nozzle of the two reciprocating pumps within the same set.

19. The gas analyzer of claim 11 , further comprising at least two gas outlets mounted on the base.

20. The gas analyzer of claim 19 , wherein the at least two gas outlets are coupled to the at least one integrated output channel to gather the gas outputted from the two reciprocating pumps.

Assignees

• Shenzhen Mindray Biomedical Electronics Co Ltd
• Shenzhen Mindray Scient Co Ltd

Inventors

• Zhou Weidong
• Liu Zhonghua
• Liu Yunfeng
• Cen Jian
• Chen Heng
• Huang Guangqi
• Gabrielsson Joakim Carl
• Werner Johan Nils Ernst
• Svedmyr Peter Erik Axel

Classifications

• G01N1/24 Primary

  Suction devices {(G01N1/22 - G01N1/2294 take precedence)} · CPC title

• F04B43/0736

  with two or more pumping chambers in parallel · CPC title

• F04B13/00

  Pumps specially modified to deliver fixed or variable measured quantities · CPC title

• F04B41/06

  Combinations of two or more pumps · CPC title

• F04B53/001

  Noise damping · CPC title