Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
  • F02F7/00—Casings, e.g. crankcases
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
  • F02F7/00—Casings, e.g. crankcases
  • F02F7/0002—Cylinder arrangements
  • F02F7/0007—Crankcases of engines with cylinders in line
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
  • F02F7/00—Casings, e.g. crankcases
  • F02F7/0021—Construction
  • F02F7/0031—Construction kit principle (modular engines)
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
  • F02F7/00—Casings, e.g. crankcases
  • F02F7/0043—Arrangements of mechanical drive elements
  • F02F7/0058—Longitudinally or transversely separable crankcases
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
  • F04B39/00—Component 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 F04B25/00 - F04B37/00
  • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
  • F04B39/00—Component 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 F04B25/00 - F04B37/00
  • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
  • F04B39/128—Crankcases
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
  • F04B39/00—Component 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 F04B25/00 - F04B37/00
  • F04B39/14—Provisions for readily assembling or disassembling
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
  • F16M1/00—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds
  • F16M1/02—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds for reciprocating engines or similar machines
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
  • F16M1/00—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds
  • F16M1/02—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds for reciprocating engines or similar machines
  • F16M1/021—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds for reciprocating engines or similar machines for housing crankshafts
  • F16M1/022—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds for reciprocating engines or similar machines for housing crankshafts of tunnel type, i.e. wherein the crankshaft can only be introduced axially

Definitions

• the present invention regards the fluid machines and, more in particular, it refers to a frame for reciprocating compressors.
• a compressor is a special kind of machine capable of exploiting the task performed by an engine to increase the pressure of a compressible fluid (gas or vapour) .
• the compression of the fluid is performed by one or more moving pistons with reciprocating movement within a respective cylinder.
• the fluid to be compressed is suctioned into the cylinder by a suctioning pipe, while the compressed one is ejected from the cylinder towards a discharge pipe.
• the piston or pistons of a reciprocating compressor are operated by electric motors or by internal combustion engines through a crankshaft for transmitting drive and a traditional connecting rod/crank mechanism.
• the industrial reciprocating compressors are usually provided with an external casing, referred to as frame, whose purpose is to accommodate the connecting rod/crank mechanism and bear the cylinder or cylinders, countering the reciprocating forces generated upon compression of the fluid.
• the frames for reciprocating compressors generally made by melting metal and/or machining by means of tool machines, are made up of a single body capable of resisting against the stresses generated during the compression cycle and subsequent to the rotational movement of the driving shaft for transmitting drive to the pistons.
• each single compressor must be provided with a specific frame depending on the number of cylinders, usually arranged vertically and in a linear manner, with which it is provided. Consequently, it is necessary to design and manufacture each frame separately, substantially increasing both the costs and the production time.
• the objective of the present invention is to provide a frame for fluid machines, in particular but not exclusively reciprocating compressors, capable of being used indistinctively both on single-cylinder machines and on two or multi-cylinder machines, without requiring different dies to obtain the specific frames depending on the number of cylinders of the machine.
• Another objective of the invention is to provide a frame for fluid machines capable of facilitating and quickening the assembly of the machine with respect to known art .
• Another objective of the invention is to provide a frame for a fluid machine capable of allowing reduction of costs and production time as well as storage in the warehouse.
• Figure IA is a top plan view of a frame for fluid machines according to the present invention, applied to a single-cylinder reciprocating compressor;
• Figure IB is a sectional view obtained along line A-A of figure IA;
• Figure 2A is a top plan view of a frame for fluid machines according to the present invention, applied to a two-cylinder reciprocating compressor;
• Figure 2B is a sectional view obtained along line A-A of figure 2A;
• Figure 3A is a top plan view of a frame for fluid machines according to the present invention, applied to a four-cylinder reciprocating compressor;
• Figure 3B is a sectional view obtained along line - A -
• Figure 4 is a side elevation view of a frame for fluid machines according to the present invention.
• Figure 5 is a side elevation view of a frame for fluid machines according to the present invention, on which one or more cylinders of fluid machines of a reciprocating type are vertically mounted.
• a frame for fluid machines indicated in its entirety with reference number 10 and applied as an example to a vertical reciprocating compressor for compressible fluids, which can be used in any gas compression station or system.
• the frame 10 is provided to bear one or more cylinders 12, moving inside each of which, with a reciprocating movement, is a piston (not shown) , operated by a crankshaft 14.
• the fluid to be compressed is introduced into each cylinder 12 through one of more suctioning pipes 18, while the compressed fluid is ejected from the cylinder 12 itself towards one or more discharge pipes 18' .
• the frame 10 is made up of one or more modules 20 of the same shape and size, within each module 20 being provided a single chamber 16 adapted to accommodate the crank mechanisms of each single cylinder 12.
• each module 20 is provided with a pair of substantially flat opposite side walls 22 and 24 and with one or more fixing means 26 which allow rigid coupling to each other, adjacently- arranging their respective side walls, of two or more identical modules 20 to provide a frame 10 for compressors provided with two or more cylinders 12, as shown for example in figures 2A, 2B, 3A and 3B.
• the fixing means 26, preferably made up of bolts of the known type, are inserted into suitable holes 26' made on each side wall 22, 24 of each module 20, thus allowing to arrange the modules 20 themselves adjacent to each other in such a manner to provide frames 10 for reciprocating compressors provided with two cylinders (figures 2A and 2B) , three cylinders, four cylinders (figures 3A and 3B) and more, without any restriction regarding the number of cylinders .
• Each of the identical modules 20 making up the frame 10 according to the invention can be made according to methods known to the industry, for example through melting metal (cast iron) or through machining by means of tool machines.
• made on one of the side walls 22 of each single module 20 can be at least one shaped portion 28 which is inserted in a shape-coupling manner into a respective shaped portion 30 provided on the other side wall 24 of the adjacent module 20.
• the modules 20 of the frame 10 are capable of efficiently resisting, when coupled to each other, against the forces generated during the operation cycle of the compressor just like the case single-block frames according to the known art.
• each module 20 is provided, on each of its side walls 22 and 24, with a circular hole 34 which allows the passage of the crankshaft 14 and possibly one or more rotating countershafts, if present on the compressor.
• a circular hole 34 which allows the passage of the crankshaft 14 and possibly one or more rotating countershafts, if present on the compressor.
• the support plates 36 of the crankshaft 14 are fixed into the side walls 22 and 24 of each module 20 by means of a plurality of bolts 38.
• the frame for fluid machines in particular but not exclusively reciprocating compressors, according to the present invention attains the objectives outlined previously.
• the use of a single metal module made from a single die allows to provide, in an easy and quick manner, modular frames for machines with any number of cylinders. This occurs simply by assembling a number of modules corresponding to the number of cylinders of the machine to each other.
• the frame for fluid machines, in particular but not exclusively reciprocating compressors, of the present invention thus conceived is in any case susceptible to various modifications and variants, all falling within the same invention concept; furthermore, all the details can be replaced by technically equivalent elements.
• the materials used, alongside their dimensions and shapes, may vary depending on the technical requirements .

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Compressor (AREA)
• Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
• Details Of Reciprocating Pumps (AREA)
• Reciprocating Pumps (AREA)
• Earth Drilling (AREA)
• Catching Or Destruction (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=39831940

Family Applications (1)

Country Status (11)

Families Citing this family (28)

Family Cites Families (7)

• 2007
  • 2007-05-17 IT IT001000A patent/ITMI20071000A1/it unknown
• 2008
  • 2008-05-09 RU RU2009145637/06A patent/RU2485350C2/ru not_active IP Right Cessation
  • 2008-05-09 UA UAA200911793A patent/UA95684C2/ru unknown
  • 2008-05-09 BR BRPI0811231-2A2A patent/BRPI0811231A2/pt not_active IP Right Cessation
  • 2008-05-09 KR KR1020097024706A patent/KR20100021420A/ko not_active Ceased
  • 2008-05-09 EP EP08750946A patent/EP2148980A2/en not_active Withdrawn
  • 2008-05-09 CN CN200880021835A patent/CN101688499A/zh active Pending
  • 2008-05-09 WO PCT/IB2008/001205 patent/WO2008142512A2/en not_active Ceased
  • 2008-05-09 US US12/451,447 patent/US20100129249A1/en not_active Abandoned
  • 2008-05-16 AR ARP080102083A patent/AR066602A1/es not_active Application Discontinuation
• 2009
  • 2009-11-17 EG EG2009111689A patent/EG25286A/xx active
• 2013
  • 2013-04-22 US US13/867,759 patent/US20140147319A1/en not_active Abandoned

Non-Patent Citations (1)

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