Abstract: A vacuum breaking device for a vacuum generator, includes a main housing, wherein the main body is provided with an air supply port, a vacuum interface chamber and a vacuum generating chamber. An intake passage is arranged inside the main housing, a pilot valve controlled by an electromagnetic pilot valve assembly is arranged between the intake passage and the air supply port. The pilot valve includes a pilot valve body, a pilot valve core and a pilot valve spring. A throttle pipe is arranged axially inside the main housing. A pneumatic on-off valve is arranged between the vacuum interface chamber and the vacuum generating chamber and outside the throttle pipe. The pneumatic on-off valve includes a slide core and a slide core spring, and a control chamber mated with an end surface of the slide core is arranged inside the main housing.
Type:
Grant
Filed:
September 30, 2019
Date of Patent:
November 22, 2022
Assignee:
XINGYU ELECTRON (NINGBO) CO., LTD
Inventors:
Jianbo Cao, Dongjie Zhu, Guangjing Chen, Xiaoxiong Hu
Abstract: A vacuum breaking device for a vacuum generator, includes a main housing, wherein the main body is provided with an air supply port, a vacuum interface chamber and a vacuum generating chamber. An intake passage is arranged inside the main housing, a pilot valve controlled by an electromagnetic pilot valve assembly is arranged between the intake passage and the air supply port. The pilot valve includes a pilot valve body, a pilot valve core and a pilot valve spring. A throttle pipe is arranged axially inside the main housing. A pneumatic on-off valve is arranged between the vacuum interface chamber and the vacuum generating chamber and outside the throttle pipe. The pneumatic on-off valve includes a slide core and a slide core spring, and a control chamber mated with an end surface of the slide core is arranged inside the main housing.
Type:
Application
Filed:
September 30, 2019
Publication date:
September 3, 2020
Applicant:
XingYu Electron (Ningbo) CO.,LTD
Inventors:
Jianbo CAO, Dongjie ZHU, Guangjing CHEN, Xiaoxiong HU