US1870848A - Fluid compressor controlling valve - Google Patents

Fluid compressor controlling valve Download PDF

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Publication number
US1870848A
US1870848A US436048A US43604830A US1870848A US 1870848 A US1870848 A US 1870848A US 436048 A US436048 A US 436048A US 43604830 A US43604830 A US 43604830A US 1870848 A US1870848 A US 1870848A
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United States
Prior art keywords
piston
valve
steam
fluid compressor
bushing
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
US436048A
Inventor
Ellis E Hewitt
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.)
Westinghouse Air Brake Co
Original Assignee
Westinghouse Air Brake Co
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 Westinghouse Air Brake Co filed Critical Westinghouse Air Brake Co
Priority to US436048A priority Critical patent/US1870848A/en
Application granted granted Critical
Publication of US1870848A publication Critical patent/US1870848A/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
    • F04B25/00—Multi-stage pumps
    • F04B25/005—Multi-stage pumps with two cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/02—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
    • F01L25/04—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine
    • F01L25/06—Arrangements with main and auxiliary valves, at least one of them being fluid-driven
    • F01L25/063—Arrangements with main and auxiliary valves, at least one of them being fluid-driven the auxiliary valve being actuated by the working motor-piston or piston-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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/129—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers
    • F04B9/131—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members
    • F04B9/133—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by a double-acting elastic-fluid motor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86582—Pilot-actuated
    • Y10T137/86606—Common to plural valve motor chambers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86622—Motor-operated
    • Y10T137/8663—Fluid motor

Definitions

  • This invention relates to fluid compressors, and more particularly to a compressor of the type employed on locomotives for compressing air for use in the fluid pressure valve brake system.
  • the locomotive type of fluid compressor employs a main valve for controlling the supply and exhaust of steam to and from the steam cylinders of the compressor, and a reversing valve for controlling the steam for operating the main valve.
  • the principal object of my invention is to provide an improved piston valve construction for a fluid compressor, in which means are provided for obviating the danger of breaking or damaging the piston rings of the piston valves as the piston valves are being inserted in their bushings.
  • FIG. 1 is a sectional view of a main valve construction embodying my invention
  • Fig. 2 a diagrammatic sectional view of a compound steam driven fluid compressor, showing the operative association of the main valve with the compressor.
  • the fluid compressor comprises a steam cylinder section 1, an air cylinder section 2, an intermediate section 3, a valve head 4, and an air cylinder cover plate 5.
  • the section 1 has a high pressure steam cylinder 6, and a low pressure steam cylinder 7 containing the respective steam pistons 8 and 9.
  • the air cylinder section 2 has a low pressure air cylinder 10 and a high pressure air cylinder 11 containing the respective air pistons 12 and 13.
  • the high pressure steam pistonS is connected to the low pressure air piston 12 by a piston rod 14, and the low pressure steam piston 9 is connected to the high pressure air piston 13 by a piston rod 15.
  • a reversing valve 16 which may be of the piston type, having piston heads 17, 18, 19, and 20. S'ecured to the reversing valve 16 is a reversing rod 21, the lower .end of which extends into a bore 22 in the piston rod 14 and is provided with a button 23.
  • the main valve comprises a hollow onepiece casting 24, having piston heads 25,
  • piston head 29 of greater diameter than the other piston heads.
  • the piston heads 25 to 28 operate in a single bushing 30, and the chamber at the outer face of piston head 25 is closed by a cover plate 31, which is secured to the valve casing by bolts 32.
  • the piston head 29 operates in a detachable cover plate 33, in which is mounted a separate bushing 34, for the piston head 29, the cover plate 33 being secured to the valve casing by bolts 35.
  • the valve 24 is entered into the bushing 30 at the right hand end.
  • the piston head 25 is entered first, and the piston rings of the piston head can be seen and guided into place in the bushing 30, the movement being facilitated by providing a taper 36 at the right hand end of the bushing.
  • the piston heads 26, 27 and 28 are then successively entered into the bushing 24.
  • the cover plate 33 is now fitted over the piston head 29, and then the cover plate is secured to the valve casing by means of the bolts 35.
  • a "steam controlling valve mechanism for a steam engine comprising a casing, a bushing in said casing,'a controlling valve having a plurality of piston heads of the same diameter, and each provided with piston rings, said piston heads being mounted to recipro cate in said bushing, an additional piston head of larger diameter associated with said valve, a hollow cover plate detachably secured to said casing, and a bushing in said cover plate in which said piston head of larger diameter is adapted to reciprocate.

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

Description

Aug. 9, 1932. E. E, HEWITT 1,870,843
FLUID COMPRESSOR CONTROLLING VALVE Filed March 15, 1930 "Figl so ELLIS E.HEW|TT BY%W . ATTO R NEY Patented Aug. 9, 1932 4 i UNITED STATES ELLIS E. HEWITT, OF EDGEWOOD, PENNSYLVANIA, ASSIGNOR'TO THE WESTINGHOUSE rharizlvror fice;
AIR BRAKE COMPANY, OF WILMERDING, PENNSYLVANIA, A CORPOR. ATION- 0F PENNSYLVANIA FLUID COMPRESSOR CONTROLLING VALVE Application filed March 15, 1930. Serial No. 436,048.
26, 27, and 28 of the same diameter, and a This invention relates to fluid compressors, and more particularly to a compressor of the type employed on locomotives for compressing air for use in the fluid pressure valve brake system.
The locomotive type of fluid compressor employs a main valve for controlling the supply and exhaust of steam to and from the steam cylinders of the compressor, and a reversing valve for controlling the steam for operating the main valve.
The principal object of my invention is to provide an improved piston valve construction for a fluid compressor, in which means are provided for obviating the danger of breaking or damaging the piston rings of the piston valves as the piston valves are being inserted in their bushings.
In the accompanying drawing; Fig. 1 is a sectional view of a main valve construction embodying my invention; and Fig. 2 a diagrammatic sectional view of a compound steam driven fluid compressor, showing the operative association of the main valve with the compressor.
As shown in Fig. 2 of the drawing, the fluid compressor comprises a steam cylinder section 1, an air cylinder section 2, an intermediate section 3, a valve head 4, and an air cylinder cover plate 5. The section 1 has a high pressure steam cylinder 6, and a low pressure steam cylinder 7 containing the respective steam pistons 8 and 9. The air cylinder section 2has a low pressure air cylinder 10 and a high pressure air cylinder 11 containing the respective air pistons 12 and 13. The high pressure steam pistonS is connected to the low pressure air piston 12 by a piston rod 14, and the low pressure steam piston 9 is connected to the high pressure air piston 13 by a piston rod 15.
In axial alinement with the steam piston 8 is a reversing valve 16 which may be of the piston type, having piston heads 17, 18, 19, and 20. S'ecured to the reversing valve 16 is a reversing rod 21, the lower .end of which extends into a bore 22 in the piston rod 14 and is provided with a button 23.
The main valve comprises a hollow onepiece casting 24, having piston heads 25,
piston head 29 of greater diameter than the other piston heads.
The piston heads 25 to 28 operate in a single bushing 30, and the chamber at the outer face of piston head 25 is closed by a cover plate 31, which is secured to the valve casing by bolts 32. The piston head 29 operates in a detachable cover plate 33, in which is mounted a separate bushing 34, for the piston head 29, the cover plate 33 being secured to the valve casing by bolts 35.
In assembling the main valve, the cover plate 33 being removed, the valve 24 is entered into the bushing 30 at the right hand end. The piston head 25 is entered first, and the piston rings of the piston head can be seen and guided into place in the bushing 30, the movement being facilitated by providing a taper 36 at the right hand end of the bushing. The piston heads 26, 27 and 28 are then successively entered into the bushing 24. The cover plate 33 is now fitted over the piston head 29, and then the cover plate is secured to the valve casing by means of the bolts 35.
By means of this construction, the piston rings of the several piston heads of the main valve are fitted into the bushing without danger of breaking the piston rings, since each individual piston head with its piston rings may be seen and guided into place.
It is not deemed necessary to described in detail the operation of the main valve 24 to control the admission and exhaust of steam to and from the steam cylinders of the compressor, nor the operation of the reversing valve 16 to supply and exhaust steam to and from the piston head 29 so as to eflect the operation of the main valve 24, since such operation corresponds with thatof previous fluid compressors of this type, and since the invention relates to features of the main valve construction not involving the operation of the compressor. While one illustrative embodiment of the invention has been described in detail, it is not my intention to limit its scope to that embodiment or otherwise than by the terms of the appended claim.
Having now described my invention, what Hit I claim as new and desire to secure by Letters Patent, is:
A "steam controlling valve mechanism for a steam engine comprising a casing, a bushing in said casing,'a controlling valve having a plurality of piston heads of the same diameter, and each provided with piston rings, said piston heads being mounted to recipro cate in said bushing, an additional piston head of larger diameter associated with said valve, a hollow cover plate detachably secured to said casing, and a bushing in said cover plate in which said piston head of larger diameter is adapted to reciprocate. V V V In testimony whereof I have hereunto set my hand, this 12th day' of March, 1930.
' ELLIS E. HEWITT.
US436048A 1930-03-15 1930-03-15 Fluid compressor controlling valve Expired - Lifetime US1870848A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516442A (en) * 1968-02-21 1970-06-23 Amot Controls Corp Modular valve and operator for fluid logic and control system
FR2505941A1 (en) * 1981-05-12 1982-11-19 Mo Aviat I Hydropneumatic pumping installation - has main and auxiliary distributors with two-way feedback booster links to prevent false tripping
US20120317980A1 (en) * 2010-12-10 2012-12-20 VaporGenics, Inc. Universal heat engine
US10443586B1 (en) * 2018-09-12 2019-10-15 Douglas A Sahm Fluid transfer and depressurization system
US11137177B1 (en) 2019-03-16 2021-10-05 Vaporgemics, Inc Internal return pump

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516442A (en) * 1968-02-21 1970-06-23 Amot Controls Corp Modular valve and operator for fluid logic and control system
FR2505941A1 (en) * 1981-05-12 1982-11-19 Mo Aviat I Hydropneumatic pumping installation - has main and auxiliary distributors with two-way feedback booster links to prevent false tripping
US20120317980A1 (en) * 2010-12-10 2012-12-20 VaporGenics, Inc. Universal heat engine
US8844291B2 (en) * 2010-12-10 2014-09-30 Vaporgenics Inc. Universal heat engine
US11111907B1 (en) 2018-05-13 2021-09-07 Tpe Midstream Llc Fluid transfer and depressurization system
US11859612B2 (en) 2018-05-13 2024-01-02 TPE Midstream, LLC Fluid transfer and depressurization system
US10443586B1 (en) * 2018-09-12 2019-10-15 Douglas A Sahm Fluid transfer and depressurization system
US11137177B1 (en) 2019-03-16 2021-10-05 Vaporgemics, Inc Internal return pump

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