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1. WO2021064340 - RECIPROCATING PUMP OR COMPRESSOR COMPRISING LUBRICATOR

Publication Number WO/2021/064340
Publication Date 08.04.2021
International Application No. PCT/GB2020/000081
International Filing Date 02.10.2020
IPC
F04B 53/18 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
53Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/-F04B23/ or F04B39/-F04B47/203
18Lubricating
F04B 39/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
39Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/-F04B37/225
02Lubrication
F04B 5/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
5Machines or pumps with differential-surface pistons
02with double-acting pistons
F04B 37/12 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
37Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/-F04B35/187
10for special use
12to obtain high pressure
F04F 5/24 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
5Jet pumps, i.e. devices in which fluid flow is induced by pressure drop caused by velocity of another fluid flow
14the inducing fluid being elastic fluid
24displacing liquids, e.g. containing solids, or liquids and elastic fluids
F16N 7/32 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
NLUBRICATING
7Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
30the oil being fed or carried along by another fluid
32Mist lubrication
Applicants
  • ERNEST H. HILL, LIMITED [GB]/[GB]
Inventors
  • KARDOOSH, Benjamin Luke
Agents
  • FRANKS & CO LIMITED
Priority Data
1914390.804.10.2019GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) RECIPROCATING PUMP OR COMPRESSOR COMPRISING LUBRICATOR
(FR) POMPE OU COMPRESSEUR À MOUVEMENT ALTERNATIF COMPRENANT UN LUBRIFICATEUR
Abstract
(EN)
A device for compressing or pumping fluid comprises a reciprocating piston (101) riding inside a cylinder (102) providing two or more expanding and contracting chambers (103, 104) of which at least one of the chambers (103) is utilised to facilitate compression or pumping of a fluid, while at least one or more other chambers (104) act instead upon a fixed volume of gas in communication with a lubricator (105), the lubricator comprising a cavity configurable to contain both liquid lubricant (106) and gas (107) and the lubricator comprising a vessel internally linked to one or more of the chambers and otherwise sealed, a venturi (108) through which gas is drawn back and forth in a reciprocating manner by pressure differential, and an uptake channel (109) such as a hose connected at one end to the venturi with its other open end configurable to be submerged in a liquid lubricant in said cavity such that the relative partial vacuum produced at the choke of the venturi draws lubricant up the uptake channel (109) and into the gas flow whereupon a mixing effect occurs creating a lubricating mist suspended in the fixed volume of gas which travels back and forth exchanging repeatedly between the cavity of the lubricator and the varying volume of the connected chamber or chambers thereby delivering lubricant to the internal surfaces of the chamber or chambers and in turn to one or more dynamic seals (110,111) located between the piston and the cylinder
(FR)
La présente invention concerne un dispositif de compression ou de pompage de fluide qui comprend un piston alternatif (101) fonctionnant à l'intérieur d'un cylindre (102) pouvant fournir au moins deux chambres d'expansion et de contraction (103, 104) dont au moins une des chambres (103) est utilisée pour faciliter la compression ou le pompage d'un fluide, tandis qu'au moins une ou plusieurs autres chambres (104) agissent à la place d'un volume fixe de gaz en communication avec un lubrificateur (105), le lubrificateur comprenant une cavité pouvant être conçue pour contenir à la fois du lubrifiant liquide (106) et gaz (107) et le lubrificateur comprenant un récipient relié à l'intérieur à une ou plusieurs des chambres et autrement scellé, un venturi (108) à travers lequel le gaz est aspiré et animé d'un mouvement de va-et-vient par un différentiel de pression, et un canal d'absorption (109) tel qu'un tuyau raccordé à une extrémité au venturi, son autre extrémité ouverte pouvant être conçue pour être immergée dans un lubrifiant liquide dans ladite cavité de telle sorte que le vide partiel relatif produit au niveau de l'étranglement du venturi aspire le lubrifiant jusqu'au canal d'absorption (109) et dans le flux de gaz produisant un effet de mélange qui permet de créer un brouillard de lubrification suspendu dans le volume fixe de gaz qui se déplace en va-et-vient s'échangeant de manière répétée entre la cavité du lubrificateur et le volume variable de la ou des chambres reliées, délivrant ainsi un lubrifiant aux surfaces internes de la ou des chambres et à son tour vers un ou plusieurs joints dynamiques (110, 111) situés entre le piston et le cylindre.
Latest bibliographic data on file with the International Bureau