vacuum pump

A vacuum pump and vacuum technology, which is applied in the field of automotive parts, can solve the problems of high noise, high process requirements, and high manufacturing costs of rotary vanes, and achieve the effects of prolonging service life, reducing manufacturing costs, and avoiding reverse pumping costs
CN105756898BActive Publication Date: 2018-03-30SHANGHAI ZHAOMIN POWER TECH CO LTD
6 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI ZHAOMIN POWER TECH CO LTD
Publication Date
2018-03-30

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to the technical field of automotive parts and discloses a vacuum pump.The vacuum pump comprises a pump body provided with a cavity, a separating part arranged in the cavity and a vacuum producing mechanism connected with the separating part.The separating part separates the cavity so that an airtight vacuum chamber can be formed.The vacuum pump further comprises an air inlet one-way valve and an air outlet one-way valve which are arranged on the pump body and communicated with the vacuum chamber.The vacuum producing mechanism is used for driving the separating part to do reciprocating movement, and when the separating part moves, the volume of the vacuum chamber is increased or decreased; when the volume of the vacuum chamber is increased, air enters the vacuum chamber through the air inlet one-way valve, and when the volume of the vacuum chamber is decreased, air is discharged through the air outlet one-way valve.The vacuum pump has the advantages of being low in noise, long in service life, free of reverse pumping, low in cost and the like.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of automotive parts, in particular to an automotive vacuum pump. Background technique

[0002] Vacuum pumps can be used in various fields. For example, for vacuum pumps used in automobile brake systems, there are various forms of vacuum pumps such as diaphragm type, rotary vane type, and piston type. Among them, the application of rotary vane type is the most common. .

[0003] In the rotary vane vacuum pump, the rotor and the stator are installed eccentrically in the pump. The rotor is tangent to the fixed surface of the stator. In contact with each other, the pump chamber is divided into several variable volumes. Usually, the gap between the rotary vane and the pump chamber is sealed with oil, so the rotary vane vacuum pump is generally an oil-sealed mechanical vacuum pump.

[0004] When the rotary vane vacuum pump is running, it has the following defects: first, the rotation of the rotary vane tends to cause hig...

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