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Four-cylinder cross-distributed piston swing type electric vacuum pump

An electric vacuum pump, cross technology, applied in the field of piston swing electric vacuum pump, can solve the problems of occupying space, passenger cars cannot be installed, troublesome installation, etc., to achieve the effect of ensuring vacuum degree, satisfying braking performance, and reliable vacuum source

Inactive Publication Date: 2018-03-16
钦萘新能源科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the pumping rate, the so-called four-cylinder vacuum pump provided by some manufacturers is just a motor with increased power, and a traditional two-cylinder pump body is respectively installed at the two protruding shaft ends. volume, making it impossible to install in a passenger car with a compact engine compartment
[0006] When the vacuum pump is working, the suction ports of each cylinder must be connected by pipelines, but currently, additional pipelines are connected outside the pump body, which causes troublesome installation and takes up space

Method used

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  • Four-cylinder cross-distributed piston swing type electric vacuum pump
  • Four-cylinder cross-distributed piston swing type electric vacuum pump
  • Four-cylinder cross-distributed piston swing type electric vacuum pump

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Embodiment Construction

[0013] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0014] The technical scheme of concrete implementation of the present invention is as follows:

[0015] attached figure 1 , is the overall appearance structure diagram of the piston electric vacuum pump; it is composed of a DC motor 11, a pump body 12, a vacuum pipe joint 13, an exhaust muffler 14, and the like.

[0016] The piston vacuum pump is a four-piston design, which is composed of a DC motor and a piston pump.

[0017] The shaft on the motor transmits the power into the vacuum pump housing and is connected with the crankshaft. When the motor is working, due to the action of the crankshaft, the piston driven by the connecting rod protrudes and ret...

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Abstract

The invention discloses a four-cylinder cross-distributed piston swing type electric vacuum pump in order to reduce the size. Bent connecting rods are used, a motor drives the four complementary bentconnecting rods on the same crankshaft to push a piston, a pair of air cylinders are coaxially and oppositely arranged on each of two planes, and the four air cylinders are distributed in a cross mode, so that the size of the vacuum pump is relatively reduced. A high pumping rate can be achieved in the vacuum pump with the same sizes, all air channels communicated with the four cylinders are designed in a pump body, and only an air suction pipe is connected with the vacuum pump.

Description

technical field [0001] The invention relates to a piston swing type electric vacuum pump comprising a four-cylinder cross-distributed piston which provides vacuum boost for a master brake cylinder of an automobile. It adopts the vehicle power supply to provide power, and the motor on the push pump body drives the crankshaft to make the piston reciprocate to generate vacuum. It provides the only reliable vacuum source for the hydraulic brake booster system of various models such as electric vehicles, hybrid vehicles, and electric track vehicles, thereby effectively improving the braking performance of the vehicle. Background technique [0002] As an energy-saving, pollution-free ideal "zero-emission" vehicle, electric vehicles are increasingly receiving widespread attention and attention from all over the world. The vast majority of cars use vacuum-assisted servo braking systems to use both manpower and power. For the braking system of traditional gasoline engine small gas ...

Claims

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Application Information

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IPC IPC(8): B60T13/52
Inventor 刘毅
Owner 钦萘新能源科技(苏州)有限公司
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