Invention Grant
US08944785B2 Piston and cylinder combination driven by linear motor with cylinder position recognition system and linear motor compressor, and an inductive sensor 有权
活塞和气缸组合由具有气缸位置识别系统的线性电机和线性电动机压缩机以及电感式传感器驱动

Piston and cylinder combination driven by linear motor with cylinder position recognition system and linear motor compressor, and an inductive sensor
Abstract:
A piston and cylinder combination driven by linear motor with cylinder position recognition system, including a support structure forming an air gap; a motor winding generating a variable magnetic flow along part of the air gap; a cylinder having a head at one end; a piston connected to a magnet, the magnet driven by the magnetic flow of the motor winding to move inside a displacement path including at least partially the air gap; the displacement of the magnet making the piston reciprocatingly move inside the cylinder; and an inductive sensor disposed at a point of the displacement path of the magnet, such that when the piston reaches a position of closest approach to the cylinder head, the inductive sensor detects a variation in the magnetic field resulting from the corresponding position of the magnet, and generates a voltage signal arising from this magnetic field variation.
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