US3601505A - Compressors - Google Patents

Compressors

Info

Publication number
US3601505A
US3601505A US814389A US3601505DA US3601505A US 3601505 A US3601505 A US 3601505A US 814389 A US814389 A US 814389A US 3601505D A US3601505D A US 3601505DA US 3601505 A US3601505 A US 3601505A
Authority
US
United States
Prior art keywords
chamber
pressure chamber
pressure
piston
recited
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
US814389A
Inventor
Kurt Bratsch
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19681703145 external-priority patent/DE1703145A1/en
Priority claimed from DE19691910848 external-priority patent/DE1910848A1/en
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3601505A publication Critical patent/US3601505A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/04—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
    • 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
    • F04B25/00—Multi-stage pumps
    • F04B25/005—Multi-stage pumps 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
    • F04B25/00—Multi-stage pumps
    • F04B25/02—Multi-stage pumps of stepped piston type
    • 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
    • F04B27/04—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • 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
    • 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
    • F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
    • F04B39/041—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
    • 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
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1013—Adaptations or arrangements of distribution members the members being of the poppet valve type
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Abstract

An improved compressor with at least three stages and having at least one cylinder, wherein the improvement comprises that only one connecting rod is used for each cylinder and that the differential piston forms a guide piston for the high-pressure piston, wherein the high-pressure cylinder operates without an inlet valve and its outlet valve covers substantially the entire and face; the invention also comprises a multicylinder arrangement embodying these improvements.

Claims (12)

1. A multistage compressor comprising, a. a low-pressure cylinder chamber having one end communicating with a high-pressure cylinder chamber, b. a third chamber communicating with the other end of the lowpressure chamber, said third chamber having a diameter smaller than that of the low-pressure chamber, c. a differential piston having portions of two different diameters, the larger diameter portion carrying piston rings and being slidable within the said low-pressure chamber and the smaller diameter portion carrying piston rings and being slidable within the said third chamber, d. a high-pressure piston connected to the larger diameter portion of the differential piston, said high-pressure piston carrying piston rings at its free end and being slidable within the high-pressure chamber, e. sealing means carried by the high-pressure chamber and cooperating with the high-pressure piston to seal the lowpressure chamber from the high-pressure chamber, f. a first inlet valve and a first outlet valve at that end of the low-pressure chamber which is proximate to the highpressure chamber, g. a second inlet valve and a second outlet valve at the other end of the low-pressure chamber, h. means forming a first air passageway between the said first outlet valve and the said second inlet valve, i. means forming an inlet opening to the high-pressure chamber, which opening is positioned slightly above the lower dead center point of said high-pressure piston, j. means forming a second air passageway between the said second outlet valve and the inlet opening to the high-pressure chambEr, k. a third outlet valve at the end of the high-pressure chamber, and l. drive means for applying reciprocating movement to the differential piston.
2. The invention as recited in claim 1, including a crankcase communicating with the said third chamber and carrying a supply of oil; and wherein the said drive means comprises a connecting rod connected to the smaller diameter portion of the differential piston and to a crankshaft, said crankshaft dipping into the oil as it is revolved.
3. The invention as recited in claim 1, wherein the high-pressure piston is rigidly secured to the differential piston.
4. The invention as recited in claim 1, including means forming an axial hole in the larger diameter portion of the differential piston, which hole terminates in an enlarged diameter bore, an integral flange formed on the high-pressure piston and positioned in said bore, a resilient washer disposed between said flange and the base of the bore, and means retaining the said flange and the washer within the said bore.
5. The invention as recited in claim 1, wherein the said sealing means comprises an annular groove formed in inner wall of the high-pressure chamber, a resilient O-ring within said groove, and a polytetrafluorethylene washer having a rectangular cross section and disposed between the O-ring and the high-pressure piston.
6. The invention as recited in claim 1, including a valve seat formed on the end of the high-pressure chamber; and wherein the said outlet valve at the end of the high-pressure chamber comprises a tapered valve body, the small diameter of said body being substantially the same as that of the high-pressure piston.
7. The invention as recited in claim 1, including a cylinder head comprising a first member constituting a closure plate for the low-pressure chamber and a second member secured to and concentric with the said first member; wherein the said first member carries the said inlet valve and said first outlet valve and includes a tubular portion which constitutes the high-pressure chamber, and wherein the said second member includes means forming a portion of the said first air passageway and means forming a portion of the said second air passageway.
8. The invention as recited in claim 7, wherein the said means forming an inlet opening to the high-pressure chamber comprises an annular groove formed in the said second member of the cylinder head, wherein the said groove communicates with radial holes passing through the said tubular member; and including a pair of annular seals positioned between the said first and second members and disposed to either side of the said annular groove.
9. The invention as recited in claim 8, including a crankcase communicating with the said third chamber and carrying a supply of oil; wherein the said drive means comprises a connecting rod connected to the smaller diameter portion of the differential piston and to a crankshaft, said crankshaft dipping into the oil as it is revolved, and wherein said cylinder head is provided with an oil-mist supply passageway communicating at one end with the said first inlet valve and at the other end with the crankcase at a point above the level of the oil.
10. The invention as recited in claim 1, in combination with a second, similar multistage compressor, a single crankcase communicating with each of the third chambers of the two compressors and carrying a supply of oil, a crankshaft dipping into the oil as it is revolved, and connecting rods connecting the differential pistons of the two compressors to the crankshaft.
11. The invention as recited in claim 10, wherein the outlet valves at the ends of the high-pressure chambers of the two compressors are connected by a conduit to form a common outlet for the two compressors.
12. The invention as recited in claim 10, wherein the said means forming the second air passageway also communicates with the corresponding outlet valve of the second compressor, and wherein the inlet opening tO the high-pressure chamber of the second compressor is connected by a conduit to the outlet valve at the end of the high-pressure chamber of the other compressor.
US814389A 1968-04-08 1969-04-08 Compressors Expired - Lifetime US3601505A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19681703145 DE1703145A1 (en) 1968-04-08 1968-04-08 compressor
DE19691910848 DE1910848A1 (en) 1969-03-04 1969-03-04 compressor

Publications (1)

Publication Number Publication Date
US3601505A true US3601505A (en) 1971-08-24

Family

ID=25754654

Family Applications (1)

Application Number Title Priority Date Filing Date
US814389A Expired - Lifetime US3601505A (en) 1968-04-08 1969-04-08 Compressors

Country Status (2)

Country Link
US (1) US3601505A (en)
GB (1) GB1258333A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4643651A (en) * 1983-08-31 1987-02-17 Groupe Industriel De Realisation Et D'application Gira S.A. Constant flow rate liquid pumping system
US4832578A (en) * 1986-11-14 1989-05-23 The B.F. Goodrich Company Multi-stage compressor
US20050129543A1 (en) * 2003-12-15 2005-06-16 Collings Douglas A. Compressor assembly with reciprocating piston and vented cylinder
US20050129542A1 (en) * 2003-12-15 2005-06-16 Collings Douglas A. Compressor assembly with piston having multiple cross sections
US20070215150A1 (en) * 2006-03-16 2007-09-20 Pari Gmbh Spezialisten Fur Effektive Inhalation Inhalation therapy device compressor
JP2008223751A (en) * 2007-03-12 2008-09-25 Mitsuharu Umagami High pressure generating device
EP3486485A1 (en) * 2017-11-20 2019-05-22 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Compressor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634519A1 (en) * 1996-08-27 1998-03-05 Leybold Vakuum Gmbh Piston vacuum pump with inlet and outlet
CN102121468B (en) * 2010-01-10 2015-08-05 谈石元 Multi-stage transmission rod compressor
DE102010053091A1 (en) * 2010-12-01 2012-06-06 Linde Aktiengesellschaft Multi-stage piston compressor
CN109404248B (en) * 2018-10-17 2024-03-26 浙江瑞立空压装备有限公司 Vehicle-mounted electric oil-free air compressor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR408319A (en) *
US745298A (en) * 1903-01-23 1903-11-24 Ingersoll Sergeant Drill Co Compressor for air or other aeriform bodies.
US1580973A (en) * 1921-11-29 1926-04-13 Rembold Viktor Compressor
US1655163A (en) * 1927-03-10 1928-01-03 Mcintosh & Seymour Corp Unloader device for compressors
US3190545A (en) * 1961-07-05 1965-06-22 Basf Ag Piston seal for a multistage high pressure gas compressor
US3233554A (en) * 1963-06-21 1966-02-08 Aero Spray Inc Air compressor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR408319A (en) *
US745298A (en) * 1903-01-23 1903-11-24 Ingersoll Sergeant Drill Co Compressor for air or other aeriform bodies.
US1580973A (en) * 1921-11-29 1926-04-13 Rembold Viktor Compressor
US1655163A (en) * 1927-03-10 1928-01-03 Mcintosh & Seymour Corp Unloader device for compressors
US3190545A (en) * 1961-07-05 1965-06-22 Basf Ag Piston seal for a multistage high pressure gas compressor
DE1195427B (en) * 1961-07-05 1965-06-24 Basf Ag Three-stage high pressure gas compressor with a piston seal
US3233554A (en) * 1963-06-21 1966-02-08 Aero Spray Inc Air compressor

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4643651A (en) * 1983-08-31 1987-02-17 Groupe Industriel De Realisation Et D'application Gira S.A. Constant flow rate liquid pumping system
US4832578A (en) * 1986-11-14 1989-05-23 The B.F. Goodrich Company Multi-stage compressor
US20050129543A1 (en) * 2003-12-15 2005-06-16 Collings Douglas A. Compressor assembly with reciprocating piston and vented cylinder
US20050129542A1 (en) * 2003-12-15 2005-06-16 Collings Douglas A. Compressor assembly with piston having multiple cross sections
FR2863669A1 (en) * 2003-12-15 2005-06-17 Tecumseh Products Co ALTERNATIVE PISTON COMPRESSOR AND VENTILATED CYLINDER
US7175400B2 (en) 2003-12-15 2007-02-13 Tecumseh Products Company Compressor assembly with reciprocating piston and vented cylinder
US7273355B2 (en) 2003-12-15 2007-09-25 Tecumseh Products Company Compressor assembly with piston having multiple cross sections
US9046092B2 (en) * 2006-03-16 2015-06-02 Pari GmbH Spezialisten für effektive Inhalation Inhalation therapy device compressor
US20070215150A1 (en) * 2006-03-16 2007-09-20 Pari Gmbh Spezialisten Fur Effektive Inhalation Inhalation therapy device compressor
JP2008223751A (en) * 2007-03-12 2008-09-25 Mitsuharu Umagami High pressure generating device
EP3486485A1 (en) * 2017-11-20 2019-05-22 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Compressor
US20190154022A1 (en) * 2017-11-20 2019-05-23 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Compressor
CN109812395A (en) * 2017-11-20 2019-05-28 株式会社神户制钢所 Compressor
KR20190058308A (en) * 2017-11-20 2019-05-29 가부시키가이샤 고베 세이코쇼 Compressor
JP2019094791A (en) * 2017-11-20 2019-06-20 株式会社神戸製鋼所 Compressor
KR102129443B1 (en) * 2017-11-20 2020-07-02 가부시키가이샤 고베 세이코쇼 Compressor
US10746162B2 (en) * 2017-11-20 2020-08-18 Kobe Steel, Ltd. Compressor

Also Published As

Publication number Publication date
GB1258333A (en) 1971-12-30

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