Improvements to reciprocating positive-displacement compressors

Details Improvements to reciprocating positive-displacement compressors Improvements to reciprocating positive-displacement compressors

F - Mech Eng,Light,Heat,Weapons

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F01M 1/02 (2006.01) F04B 39/10 (2006.01) F04C 29/12 (2006.01) F16K 15/16 (2006.01) F16N 7/36 (2006.01) F16N 7/38 (2006.01)

Patent

CA 2661684

A positive-displacement reciprocating compressor comprising a "non-conventional" crank mechanism which eliminates the amount of frictional force between the wall of the piston and the wall of the cylinder, whose characteristic feature is to have a planet (20) made of sintered material, with self-lubrication properties, allowing to eliminate bushings or similar additional elements. An economical and structurally simple lubrication system, which preferably comprises a classical link rod/crank mechanism, utilises the mechanical energy provided by the drive shaft of the compressor and sends the lubricant (oil) in a precise manner to the surfaces that need to be lubricated. This oil is easily retained by the very small grains of the sintered material. Moreover, a valve system based on a single plate simplifies the structure of the cylinder unit (30).

La présente invention concerne un compresseur alternatif volumétrique qui comprend un mécanisme de manivelle <= non conventionnel >= qui élimine la quantité de force frictionnelle entre la paroi du piston et la paroi du cylindre, dont la caractéristique est de posséder un planétaire (20) fait de matériau fritté, avec des propriétés d'auto-lubrification, permettant d'éliminer les douilles ou éléments supplémentaires similaires. Un systèmes de lubrification économique et structurellement simple, qui de préférence comprend un mécanisme classique de bielle de liaison/manivelle, utilise l'énergie mécanique fournie par l'arbre d'entraînement du compresseur et envoie le lubrifiant (huile) de manière précise jusqu'aux surfaces qui doivent être lubrifiées. Cette huile est facilement retenue par les grains de très petite taille du matériau fritté. En outre, un système de soupape basé sur une plaque unique simplifie la structure de l'unité de cylindre (30).

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