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
- Patent Title: Piston and cylinder combination driven by linear motor with cylinder position recognition system and linear motor compressor, and an inductive sensor
- Patent Title (中): 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
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Application No.: US12810953Application Date: 2008-12-29
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Publication No.: US08944785B2Publication Date: 2015-02-03
- Inventor: Dietmar Erich Bernhard Lilie , Paulo Sergio Dainez , Nerian Fernando Ferreira , Marcelo Knies
- Applicant: Dietmar Erich Bernhard Lilie , Paulo Sergio Dainez , Nerian Fernando Ferreira , Marcelo Knies
- Applicant Address: BR Sao Paulo
- Assignee: Whirlpool S.A.
- Current Assignee: Whirlpool S.A.
- Current Assignee Address: BR Sao Paulo
- Agency: Fay Sharpe LLP
- Priority: BR0704947 20071228
- International Application: PCT/BR2008/000401 WO 20081229
- International Announcement: WO2009/082800 WO 20090709
- Main IPC: F04B17/04
- IPC: F04B17/04 ; F04B35/04

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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