Electromagnetic braking system and control method for rapid compression machine
US11274714B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2019 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Mar 8, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2121/20
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electromagnetic braking system and control method, with the system having a CCU, a braking cylinder, a push rod, an electromagnetic braking ring, an electromagnetic braking piston fixed to the push rod, a first shading plate and a second shading plate, a photoelectric sensor fixed near the push rod, and an electromagnetic braking control circuit, and the control method including following the steps: initial estimating of the braking distance (l) according to the current magnitude, electromagnetic force between the two electromagnetic coils and initial velocity (v) of the push rod, arranging a restoration distance (Δl) between the top dead center and the piston after braking, installing two shading plates and the photoelectric sensor; and setting the distance between the two electromagnetic coils to when the starts braking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.