Self-pressured low-pressure large-flow air pump
A large-flow, self-pressurizing technology, which is applied to parts, pumps, and pump devices of elastic fluid pumping devices, can solve the problems of small air flow, pressure not reaching the ventilator, and difficulty in finding it, and achieve Good performance, simple structure and reduced volume
Inactive Publication Date: 2015-05-06
SIWEI MEDICAL TECH SUZHOU CO LTD
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Problems solved by technology
Among the air pumps currently on the market for sleep apnea machines, this kind of "small volume, low pressure, and high flow air pump" is difficult to find. Either the volume is large or the air flow is small, or the pressure cannot meet the requirements of the ventilator. Affects the performance of sleep apnea machine to a certain extent
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[0018] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] see Figure 1~6 The self-pressurized low-pressure large-flow air pump shown, the air pump includes a pump body 1 with a hollow inner cavity, and a spiral air flow channel 11 is opened on the circumferential side wall of the pump body 1, and one end of the air flow channel 11 is forward It extends and passes through the front end of the pump body 1 , and the other end extends backward and passes through the rear end of the pump body 1 . When setting, the helical direction of the airflow passage 11 should be set along the direction of rotation of the wind entering the airflow passage 11, so that a certain airflow pressure can be formed when the rotating airflow rotates in the airflow passage 11. The front and back directions here are defined according to the direction in which the gas enters. The end where t...
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The invention discloses a self-pressured low-pressure large-flow air pump. According to the invention, an air inlet blade and an output blade are respectively arranged at the front and rear ends of a pump body; the rear end of the pump body is sealed through the arrangement of a rear cover; a spiral air flow channel is formed in the pump body; air flow is blown into the air flow channel through the air inlet blade; the air flow rotates in the air flow channel to form certain pressure, and flows in an air pressure cavity formed between the rear cover and the output blade through the air flow channel; the output blade rotates to cause air flow pressure in the air pressure cavity to rise; and the air flow is fed into the air outlet channel through an air delivery port of the output blade, and then sent out of the air pump for use. The pressure and flow of the air output by the air pump can be controlled by adjusting the rotating speed of the air inlet blade and the output blade; the air pump can realize the pressurization process, so that the structure of the air pump is simplified and the size of the air pump is reduced; and the air pump can output low-pressure large-flow air, is convenient to use, and has excellent use performance.
Description
technical field [0001] The invention relates to a self-pressurized low-pressure large-flow air pump, in particular to a self-pressurized low-pressure large-flow air pump used in a sleep breathing machine. Background technique [0002] Pressure and flow are two important parameters of a sleep apnea machine, which affect the performance of the apnea machine to a certain extent. When developing a sleep ventilator project, the first problem that needs to be solved is to find an air pump whose pressure and flow can meet the performance requirements of the ventilator. While the air pump meets the basic performance requirements of low pressure and large flow, the air pump itself Should have a small size. Among the air pumps currently on the market for sleep apnea machines, this kind of "small volume, low pressure, and high flow air pump" is difficult to find. Either the volume is large or the air flow is small, or the pressure cannot meet the requirements of the ventilator. To a...
Claims
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IPC IPC(8): F04D25/08F04D29/28F04D29/42F04D29/00
Inventor 王卫
Owner SIWEI MEDICAL TECH SUZHOU CO LTD