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Rotary machines with magnetically actuated pistons

A technology of rotating machines and pistons, applied in free piston engines, reciprocating piston engines, engine components, etc., can solve problems such as Joule heating loss

Active Publication Date: 2021-08-13
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Joule heating losses occur in the coils on both the rotor and the stator

Method used

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  • Rotary machines with magnetically actuated pistons
  • Rotary machines with magnetically actuated pistons
  • Rotary machines with magnetically actuated pistons

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Embodiment 1. A rotary machine 10 comprising:

[0067] stator 18 defining a circumference 148;

[0068] a first plurality of magnet arrays 67A, 67B, 68A, 68B consisting of a first plurality of discrete magnets 160, 162 arranged in a first magnetic pattern around said circumference 148 of said stator 18;

[0069] rotor 20 rotatable about an axis of rotation and defining a body 36 defining a first passage 32; and

[0070] a first piston 26 comprising a plurality of first magnetic elements 150, 152, said first piston 26 being actuated within said first channel 32 of said rotor 20, wherein said plurality of first discrete magnets 160, 162 arranged in the first magnetic pattern and positioned such that the plurality of first discrete magnets 160, 162 interact with the first magnetic element of the first piston 26 when the rotor 20 rotates about the axis of rotation. 150 , 152 interact to generate a first magnetic force representing a first amount of force required to actua...

Embodiment 2

[0071] Embodiment 2. The rotary machine 10 of embodiment 1 comprising a second piston 30 comprising a plurality of second magnetic elements 150, 152, the second piston 26 being driven by the rotor 20 is actuated within the second channel 34 defined by the body 36 , wherein the stator 18 includes a plurality of second magnet arrays 65A, 65B, 66A, 66B consisting of a plurality of second discrete magnets 164 , 166 .

Embodiment 3

[0072] Embodiment 3. The rotating machine 10 of embodiment 2, wherein the plurality of second discrete magnets 164, 166 are positioned such that when the rotor rotates about the axis of rotation, the plurality of second discrete magnets are in contact with The second magnetic elements 150 , 152 of the second piston 30 interact to generate a second magnetic force representing actuation of the second piston in the second channel 34 of the rotor 20 30 the second amount of force required.

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PUM

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Abstract

The invention relates to a rotary machine with a magnetically actuated piston. A rotary machine is disclosed that includes a stator defining a circumference, a first plurality of magnet arrays, a rotor, and a first piston. The first magnet array consists of a plurality of discrete magnets arranged in a first magnetic pattern around the circumference of the stator. A rotor is rotatable about an axis of rotation and defines a body. The body defines a first channel. A first piston includes a plurality of first magnetic elements and is actuated within a first channel of the rotor. A plurality of discrete magnets are arranged in a first magnetic pattern and positioned to interact with the magnetic element of the first piston to generate a first magnetic force as the rotor rotates about the axis of rotation. The first magnetic force represents a first amount of force required to actuate the first piston.

Description

technical field [0001] The disclosed system relates to rotary machines, and more particularly, to rotary machines including a piston with a magnetic element, wherein the piston is actuated by a magnetic force generated when the rotor rotates. Background technique [0002] A heat engine uses energy provided in the form of heat to do work. There are various thermodynamic cycles that can be used by heat engines, such as the Carnot cycle, the Stirling cycle, and various internal combustion engine cycles, such as the Otto cycle and the Diesel cycle. All of these thermodynamic heat engines use gas as the working fluid. For example, the Stirling cycle is often used in relatively small and modestly sized cryocoolers, where the working fluid is usually helium. [0003] Stirling engines may include internal pistons for moving and compressing a working fluid and generating output power. Specifically, the piston receives work during its upstroke, or compression, and generates work du...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02G1/043F02G1/053
CPCF02G1/043F02G1/053F01B1/06F01B1/0634F01B9/04F25B9/14H02K33/00H02K49/108H02K7/06H02K16/00F02G2243/00H02K7/1815F02G2242/40F02G2258/80F02B71/04F02G1/00H02K7/063H02K7/1876F02G1/044F02G1/057F02G2257/02F25B2309/003H02K1/17H02K1/34H02K7/08H02K35/02
Inventor J·R·赫尔
Owner THE BOEING CO
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