US2375395A - Compressor with opposed pistons - Google Patents

Compressor with opposed pistons Download PDF

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Publication number
US2375395A
US2375395A US424861A US42486141A US2375395A US 2375395 A US2375395 A US 2375395A US 424861 A US424861 A US 424861A US 42486141 A US42486141 A US 42486141A US 2375395 A US2375395 A US 2375395A
Authority
US
United States
Prior art keywords
partition
compressor
pistons
opposed
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US424861A
Other languages
English (en)
Inventor
Waeber Erwin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer AG
Original Assignee
Sulzer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sulzer AG filed Critical Sulzer AG
Application granted granted Critical
Publication of US2375395A publication Critical patent/US2375395A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/005—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders with two cylinders
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • 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
    • F04B39/0005—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 adaptations of pistons
    • 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
    • F04B39/0005—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 adaptations of pistons
    • F04B39/0022—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 adaptations of pistons piston rods
    • 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
    • F04B5/00—Machines or pumps with differential-surface pistons
    • F04B5/02—Machines or pumps with differential-surface pistons with double-acting pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/33—Compressors for piston combustion engines
    • F02M2700/331—Charging and scavenging compressors

Definitions

  • the invention relates to a compressor with opposed pistons, particularly a scavenging pump or a charging compressorfor two-stroke opposed- ⁇ piston internal combustion engines.
  • the invention provides' each piston with a central guide means at the end facing its opposed piston and a partition separating the adjacent working lspaces of the two opposed' pistons and having one column on each of its opposite faces which engages the central guide means of the pistons.
  • a partition which is fitted on each Aface with vpiston may project within the trunk piston extension.
  • the partition may be formed with perforations so 'that the working spaces of the two pistons are connected to each other.
  • the partition may ybe used as a displacer so thatthe clearance may be reducedto a minimum.
  • Fig. 1 shows acompressor according to the invention.
  • Fig. 2 shows a detail of the compressor to a larger scale,
  • the partition I2 which possesses columns .I3 and I4 respectively on the two facesV for guiding the pistons 2 and 3.
  • the partition is formed of two disks which are held together by the bolts I5.
  • the rings I1 made in severalpartsand slightly curved, are inserted without any gaps.
  • the pistons 2 vand 3 are each fitted with a trunk piston extension I8 andy I9 respectively at the end away from the partition, and this, together with the column, on which the piston slides, serves to guide the piston; it has a bolt for the Iconnecting rodI between ⁇ the pistons andv the crank. vIn this way aparticularly compact form of construction is obtained, since the columns I3 and I4 project into the trunk piston extensions I8 and I9 respectively.
  • the partition is o i such a shape that it is simultaneously usedl to act as. a displacer, 'since clearance is reduced to a mnimumand the comv pressed air can with certainty flow away unhindered through the delivery valves.
  • the described form of construction makes it possible to provide a guide at both ends of a ⁇ piston, whereby the necessary clearance can be reducedv to a minimum.
  • the lpartition can also i be inserted without division of the cylinder.
  • the running surfaces of the two pistons can be Inachined in one o-peration.
  • the rings serving to maintain the partition in place in the cylinder maybe cut only at one place and be lof flexible composition. It is, however, also possible to divide the ring'into several segments which may then be inserted in the groove in the cylinder wall without any gaps. ticular when the ring is in several parts acompletely gas-tight partition can be provided to separate the two adjacent working spaces,4
  • the inventionl may be adopted in allpossible kinds of compressors, in particular, however, in
  • a compressor comprisingr at least one cylin-y der, a ⁇ partition dividing the lcylinder into two working spaces, opposed pistons reciprocating, re-
  • a compressor according to claim 1 in which ⁇ the wall of the cylinder is provided with an annular groove and in which the partition is provided with an annular groove which cooperates rings are deformed in such a way that they not I with the annular groove in the cylinder wall, ring means in the annular grooves for securing the partition to the cylinder wall, and means vpressfi In paring the ring means into tight engagement with ythe cylinder wall and -thepartition forming a tight joint.
  • a compressor according to claim 1 in which y the partition is formed of two discs, means connecting the two discs together; ythe two discs forming an annular disc between them, the cylinder wall having an annular groove cooperating said curved vrings being pressed into tight engagement with the partition discs and with the cylinder wall when the discs are held together by the partition discs and with the cylinder wall when the discs are held together by the partition discs and with the cylinder wall when the discs are held together by the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Supercharger (AREA)
US424861A 1941-06-13 1941-12-30 Compressor with opposed pistons Expired - Lifetime US2375395A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH221683T 1941-06-13

Publications (1)

Publication Number Publication Date
US2375395A true US2375395A (en) 1945-05-08

Family

ID=4452273

Family Applications (1)

Application Number Title Priority Date Filing Date
US424861A Expired - Lifetime US2375395A (en) 1941-06-13 1941-12-30 Compressor with opposed pistons

Country Status (5)

Country Link
US (1) US2375395A (en))
CH (1) CH221683A (en))
FR (1) FR888887A (en))
GB (1) GB577286A (en))
NL (1) NL55258C (en))

Also Published As

Publication number Publication date
GB577286A (en) 1946-05-13
FR888887A (fr) 1943-12-24
CH221683A (de) 1942-06-15
NL55258C (en)) 1943-08-17

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