Multi-pressure integrated air pump

Patent metadata

Field	Value
Publication number	US-11686299-B2
Application number	US-202016914895-A
Country	US
Kind code	B2
Filing date	Jun 29, 2020
Priority date	Jul 2, 2019
Publication date	Jun 27, 2023
Grant date	Jun 27, 2023

Abstract

A high and low-pressure integrated air pump includes a single housing including an air inlet and an air outlet. A high-pressure pump is disposed within the housing and in fluid communication with the air inlet, and uses a first outlet passage to discharge to the air outlet. A low-pressure pump is also disposed within the housing and in fluid communication with the air inlet, and uses a second outlet passage to discharge to the air outlet.

First claim

What is claimed is:

1. A high and low-pressure integrated air pump, comprising:
a housing including an air inlet and an air outlet;
a high-pressure pump disposed within the housing, in fluid communication with the air inlet and in fluid communication with the air outlet via a first outlet passage; and
a low-pressure pump disposed within the housing, in fluid communication with the air inlet and in fluid communication with the air outlet via a second outlet passage, wherein the low-pressure pump is configured to automatically disengage and the high-pressure pump is configured to automatically engage in response to a common signal.

2. The high and low-pressure integrated air pump of claim 1 , wherein the low-pressure pump is disposed between the high-pressure pump and the air inlet.

3. The high and low-pressure integrated air pump of claim 1 , wherein the low-pressure pump is an impeller pump including a motor and an impeller.

4. The high and low-pressure integrated air pump of claim 1 , wherein the high-pressure pump and the low-pressure pump both include at least one check valve.

5. The high and low-pressure integrated air pump of claim 1 , wherein the high-pressure pump is a diaphragm pump including a motor and a diaphragm.

6. The high and low-pressure integrated air pump of claim 5 , wherein the motor reciprocates the diaphragm via a worm gear and a spur gear.

7. The high and low-pressure integrated air pump of claim 5 , wherein the motor reciprocates the diaphragm via a pair of toothed gears.

8. The high and low-pressure integrated air pump of claim 1 , further comprising a power supply operably connected to respective motors of the high-pressure pump and the low-pressure pump.

9. The high and low-pressure integrated air pump of claim 8 , wherein the power supply is a battery.

10. The high and low-pressure integrated air pump of claim 8 , wherein the power supply is a power outlet.

11. A high and low-pressure integrated air pump, comprising:
a housing including an air inlet and an air outlet;
a high-pressure pump disposed within the housing in fluid communication with the air inlet and the air outlet;
a low-pressure pump disposed within the housing and in fluid communication with the air inlet and the air outlet;
a pressure valve disposed between the low-pressure pump and the air outlet; and
a control circuit in electrical communication with the pressure valve and configured to activate the high-pressure pump and deactivate the low-pressure pump in response to a common signal from the pressure valve.

12. The high and low-pressure integrated air pump of claim 11 , further including a switch which is operable to toggle between three modes including:
a first mode in which the high-pressure pump is activated and the low-pressure pump is deactivated,
a second mode in which the low-pressure pump is activated and the high-pressure pump is deactivated, and
a third mode in which the high-pressure pump and the low-pressure pump are both deactivated.

13. The high and low-pressure integrated air pump of claim 11 , wherein:
the pressure valve includes:
a signal switch in electrical communication with the control circuit,
a diaphragm in fluid communication with the low-pressure pump, and
a trigger disposed between and in communication with the signal switch and the diaphragm, and

if the pressure within the low-pressure pump reaches a threshold, the trigger is biased towards the signal switch and triggers the signal switch to send the common signal to the control circuit.

14. The high and low-pressure integrated air pump of claim 13 , wherein the common signal which is sent from the signal switch to the control circuit directs the control circuit to deactivate the low-pressure pump and to simultaneously activate the high-pressure pump.

15. The high and low-pressure integrated air pump of claim 11 , wherein the high-pressure pump and the low-pressure pump both include at least one check valve.

16. The high and low-pressure integrated air pump of claim 15 , wherein the pressure valve is disposed between the low-pressure pump and one of the at least one check valve of the low-pressure pump.

17. A high and low-pressure integrated air pump, comprising:
a housing including an air inlet and an air outlet;
a high-pressure pump disposed within the housing in fluid communication with the air inlet and the air outlet;
a low-pressure pump disposed within the housing and in fluid communication with the air inlet and the air outlet;
a pressure valve disposed between the low-pressure pump and the air outlet, the pressure valve comprising:
a signal switch in electrical communication with a control circuit,
a diaphragm in fluid communication with the low-pressure pump, and
a trigger disposed between and in communication with the signal switch and the diaphragm, wherein if the pressure within the low-pressure pump reaches a threshold, the trigger is biased towards the signal switch and triggers the signal switch to send a signal to the control circuit; and

the control circuit in electrical communication with the pressure valve and configured to control the high-pressure pump and the low-pressure pump in response to signals from the pressure valve.

18. The high and low-pressure integrated air pump of claim 17 , wherein the signal which is sent from the signal switch to the control circuit directs the control circuit to deactivate the low-pressure pump and to activate the high-pressure pump.

19. A high and low-pressure integrated air pump, comprising:
a housing including an air inlet and an air outlet;
a high-pressure pump disposed within the housing in fluid communication with the air inlet and the air outlet;
a low-pressure pump disposed within the housing and in fluid communication with the air inlet and the air outlet;
a pressure valve disposed between the low-pressure pump and the air outlet; and
a control circuit in electrical communication with the pressure valve and configured to control the high-pressure pump and the low-pressure pump in response to signals from the pressure valve, wherein the high-pressure pump and the low-pressure pump both include at least one check valve, and wherein the pressure valve is disposed between the low-pressure pump and one of the at least one check valve of the low-pressure pump.

20. A high and low-pressure integrated air pump, comprising:
a housing including an air inlet and an air outlet;
a pressure sensor;
a high-pressure pump disposed within the housing, in fluid communication with the air inlet and in fluid communication with the air outlet via a first outlet passage; and
a low-pressure pump disposed within the housing, in fluid communication with the air inlet and in fluid communication with the air outlet via a second outlet passage, wherein the low-pressure pump is configured to automatically disengage and the high-pressure pump is configured to automatically engage in response to a detection of a common pressure threshold by the pressure sensor.

21. The high and low-pressure integrated air pump of claim 20 , wherein the low-pressure pump is disposed between the high-pressure pump and the air inlet.

22. The high and low-pressure integrated air pump of claim 20 , wherein the low-pressure pump is an impeller pump including a motor and an impeller.

23. The high and low-pressure integrated air pump of claim 20 , wherein the high-pressure pump and the low-pressure pump both include at least one chec

Assignees

• Intex Marketing Ltd

Inventors

• Huang zhi xiong
• Zhang Ying Biao
• Lin zheng wen

Classifications

• F04B23/14 Primary

  at least one pump being of the non-positive-displacement type · CPC title

• F04D27/008

  Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves · CPC title

• F04B23/08

  the pumps being of different types · CPC title

• F04D27/005

  by changing flow path between different stages or between a plurality of compressors; Load distribution between compressors · CPC title

• F04D29/503

  especially adapted for elastic fluid pumps · CPC title