Sodium cooled pistons for a free piston engine

A piston engine, engine technology, applied in free piston engine, engine cooling, engine components, etc., can solve problems such as overheating of free piston assembly, and achieve the effects of reducing friction, balancing heat transfer, and improving heat conduction

Inactive Publication Date: 2007-05-02
FORD GLOBAL TECH LLC
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If not, there may be an overheated spot on the free piston assembly

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sodium cooled pistons for a free piston engine
  • Sodium cooled pistons for a free piston engine
  • Sodium cooled pistons for a free piston engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] 1-11 show an opposed piston, opposed cylinder, hydraulic free piston engine 10 . The engine 10 includes a hydraulic pump block assembly 12, and a first piston / cylinder assembly 14 extending therefrom and a second piston / cylinder assembly 16 extending inversely from the hydraulic pump block assembly 12 such that they are in a row in a row. The timing of the first piston / cylinder assembly 14 is reversed from that of the second piston / cylinder assembly 16 . So when one is at top dead center, the other is at bottom dead center. Furthermore, the motion is along or parallel to a single axis of motion. The above-mentioned structure of the free piston engine can make the inherent balance of the engine better.

[0045] Additionally, the following description discloses an engine that not only stores energy produced by the engine in the form of pressurized fluid, but uses some of that pressurized fluid to start and sometimes to help control engine operation and maintain engine ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. At least one of the pistons 202, 220 includes one or more generally axially extending bores 212, 213; 230, 231 partially filled with a sodium compound 215, 217. As each piston 202, 220 reciprocates, the sodium 215, 217 moves back and forth in each cooling bore 212, 213; 230, 231 thereby better distributing heat in the piston 202,220.

Description

technical field [0001] This invention relates to internal combustion engines, in particular free piston engines. Background technique [0002] According to conventional technology, internal combustion engines operate with the movement of mechanically fixed pistons. For example, a conventional automotive internal combustion engine includes a crankshaft and connecting rod assembly that mechanically determines the movement of each piston within its respective cylinder. This type of engine is ideal because for any given point in the engine cycle, the position of each piston is known, which simplifies the timing and operation of the engine. While engines of the conventional type described above have seen significant improvements in efficiency in recent years, due to the nature of the engines, their efficiency remains limited. Especially since the mechanically fixed movement of the piston fixes the compression ratio, the power density is limited. Furthermore, all the moving par...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F01P3/18F02B71/04F01P1/04F02F3/18
CPCF02B71/04F02F3/18
Inventor 彼得·霍夫鲍尔艾德瑞安·图斯内安
Owner FORD GLOBAL TECH LLC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap