Pagpapakilala ng end carbon commutator

2022-06-02

Ang paggamit ng mga carbon at carbon compound sa paggawa ng DC motor commutators ay pinag-aralan ng mga German scientist noong Ikalawang Digmaang Pandaigdig.
Matapos ang pagkatalo ng Alemanya, ang mga siyentipikong Aleman ay nahuli ng militar ng US at pumasok upang ipagpatuloy ang kanilang pananaliksik.
Ngunit nang lumabas ang brushless motor, nakakuha ito ng atensyon sa mahabang buhay nito. Mga gawain sa pananaliksiktapusin ang mga carbon commutatoray naantala ng ilang panahon.
After the automobile adopts the EFI device, the fuel pump cannot use the brushless motor due to the limitation of volume. The fuel pump of the EFI automobile is immersed in the fuel to work, and the gasoline currently produced and sold in my country has a relatively low sulfur content. High, copper commutator working surface, in addition to the burning of electric sparks when carbon brushes are commutated, it will also accelerate wear due to chemical corrosion of sulfur. Furthermore, in order to cope with the insufficient supply of fuel in the future fuel market and to control automobile exhaust pollution, the Chinese government has started to sell corrosive ethanol gasoline on a pilot basis. A joint test by the Chinese Academy of Sciences and Tsinghua University shows that the current additives in ethanol gasoline will cause strong corrosion to the metal commutator, resulting in a significant reduction in the service life of the car, and directly lead to various engine failures.

Sa yugtong ito, ang European Union at iba pang mga bansa ay nagsimulang magbalangkas ng mga nauugnay na pamantayan, at nagsimulang magsulong at gumamit ng mga electronic fuel pump na maytapusin ang mga carbon commutatorsa kanilang mga pump core upang palitan ang tanso at iba pang mga metal commutator upang pahabain ang buhay ng serbisyo ng mga fuel pump. Ang panahon ng malawakang pag-aampon ngtapusin ang mga carbon commutatorsa automotive fuel pump ay dumating na.

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