US2078347A - Suction valve - Google Patents

Suction valve Download PDF

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Publication number
US2078347A
US2078347A US75206834A US2078347A US 2078347 A US2078347 A US 2078347A US 75206834 A US75206834 A US 75206834A US 2078347 A US2078347 A US 2078347A
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United States
Prior art keywords
valve
cage
piston
cylinder
seat
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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
Inventor
Milton S Shcpherd
Francis C Wiley
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.)
LOUIS A ROSER
Original Assignee
LOUIS A ROSER
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Publication date
Priority claimed from US594443A external-priority patent/US1985841A/en
Application filed by LOUIS A ROSER filed Critical LOUIS A ROSER
Priority to US75206834 priority Critical patent/US2078347A/en
Application granted granted Critical
Publication of US2078347A publication Critical patent/US2078347A/en
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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
    • F04B39/0005—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
    • F04B39/0016—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 with valve arranged in the piston
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/785—With retarder or dashpot
    • Y10T137/7852—End of valve moves inside dashpot chamber
    • Y10T137/7853—Enlarged piston on end of valve stem
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7866—Plural seating
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7869—Biased open

Definitions

  • a further object is to provide a compressor which has a new type of noiseless suction valve and which valve is more eflicient than those heretofore, giving greater compressibility to any type of compressor when used therein. 19
  • a still further object is to provide a simplified construction of suction valve in which air cushionsand air pressure are used to stabilize the operation of the valve and to make it noiseless in operation.
  • a still further object is to provide a construction of intake or suction valve which is'so built asto have longer life and to prevent pounding oif of the lock' nut thereon.
  • a still further object is to provide a compressor which has the suction valve so constructed that when starting, no load is carried until the compressor has attained suificient speed to close the suction valve in the piston.
  • Figure 1 is a vertical diametrical section of a compressor piston and cylinder with our suction 40 valve used in the piston head.
  • Figure 2 is a vertical diametrical section through the suction valve and cage removed from the piston.
  • Figure 3 is a section of the valve cage.
  • Figure 4 is a side elevation of the valve cage and valve.
  • Figure 5 is a plan view of Figure 3.
  • Figure 6 is an enlarged section of one edge of the valve and valve seat to show the double converging angle formed in both the valve and seat.
  • the suction valve D is carried in a cage 25 I single ,chamfer.
  • the cage 25 is cylindrical in form with a valve seat formed in the topend in which the valve D is normally held away from its seat by the spring DI.
  • the cage 25 is provided with a flange 26 therearound-adapted to fit into a socket 21 in the piston head B, and be. secured therein by placing an annular ring 28 thereabove resting on the flange 26 and fitting into an annular step '29 inthe piston head. The ring is'secured by spaced apart tap screws 30.
  • the bottom end of the cage 25 is formed as an inverted frustum of a cone and the center is bored out to leave an inverted frusto-conical chamber 3
  • the bottom end of the frusto-conical portion of the cage 25 is bored concentric therewith to form a cylinder 33' inwhich a piston 34 is carried and operated.
  • a central bore 35 is provided up throughthe center of the entire cage, and center support bearing 32, in which the valve stem of the valve D is carried, and the lower end of the stem D2 extends down through this bore 35 into the cylinder 33 and passes through a center threaded hole in the piston 34;
  • a pin 36 secures the piston 34 onto the lower end of the stem D2.
  • a small relief port 31 is bored into the cylinder 33 through the side wall of the cage 25 into the cylinder 33 near the top end thereof.
  • the relief port is to allow air to be forced from the cylinder when the valve is opening, but the port 31 is bored into the chamber a short distance from the end thereof so that the piston when rising in the cylinder moves freely until just before it reaches the end of its stroke and the end of the stroke will be cushioned by the compression of the air in the chamber 31 above the piston 32.
  • the top inner edge of the bearing block 32 is inwardly chamfered at 38 to provide an oil retaining well to catch and retain oil for lubrication of the valve stem.
  • Ports 39 through the side walls of the cage 25 provide air passage thereinto from the space surrounding'the piston into the cylinder A.
  • valve D and its seat 40 are each cut with their faces made of two angled chamfers so that they will seat more closely than possible with one
  • the two chamfers in the head are shown as 4
  • the valve spring DI is carried in the chamber 3
  • the piston B of the device is of the usual compressor type having a head and skirt joined together by vertical struts leaving an air space between the skirt and head Which space is joined into the circuit of the system in which the compressor is being used or to the atmosphere if air is being compressed.
  • a compressor suction valve the combination of a piston; a valve cage carried therein; a ring to secure the cage to the piston; a suction valve mounted in the head of the cage with the face of the valve and the face of the valve seat formed with two converging angles; a small cushioning cylinder formed in the bottom end of the frusto-conical lower end of the valve case; a small piston carried in said cushioning cylinder with the stem of the suction valve secured through said small piston; an escape port through the cage near the top end of the small cushioning cylinder to allow for closing of the valve against air suction and pressure and affording a quick operating valve; and a spring carried in said cage engaging the cage and valve to normally hold the valve slightly away from its seat.
  • a suction valve for compressors comprising a step out cage adapted to fit into the piston head of the compressor; a frusto-conical cage depending therefrom having a cylinder in the bottom end thereof; a central upwardly extending frustoconical valve stem guide formed within said cage; openings through the wall of the frusto-conical depending cage to allow fluid to pass into the valve chamber which is formed within the cage; a valve seat formed in the head of the cage having the seat of twoangled chamfers joined medially of the seat; a valve carried in said cage having the face formed of like angled chamfers to fit the valve seat and having the stem depending through the valve stem guide; a piston secured onto the lower end of the valve stem to operate within said cylinder in the bottom of the cage; a spring to normally hold the valve spaced from the valve seat, but of a tension to allow the valve to seat when the piston is operating at sufficient speed to close the valve and compress the fluids thereover; and a bleeder hole through the cage into the cylinder near the
  • a compressor valve of the type described the combination of a cylinder having a compression piston operable therein, said piston having a step out opening medially therethrough; a valve cage having a step out flange around the perimieter thereof fitting into the step out in the piston and a depending frusto-conical body below said flange; an annular ring secured above the flange and to the piston to hold the cage within the piston; a frusto-conical opening in said cage with the top edge chamfered to form the valve seat; a frusto-conical valve stem guide formed within the opening in the cage to guide the valve and having the top end of the guide chamfered' inwardly to catch oil for lubricating the valve stem; a small cushion cylinder formed in the bottom end of the cage; a valve carried through a central bore in said cage and guide with the valve to seat in the valve seatformed in the top of the cage when compressing; a spring carried in the opening in the cage to normally hold the valve from its seat;

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compressor (AREA)

Description

April 27, 1937. M. s. SHEPHERD ET AL 2,073,347
SUCTION VALVE w Original Filed Feb. 25, 1932 Patented Apr. 27, 1937' UNITED STATES PATENT OFFICE V SUCTION VALVE Milton S; Shepherd and Francis 0." Wiley, Salt Lake City, Utah, assignors of one-third to Louis A. Roser, Salt Lake City, Utah Original application February 23, 1932, Serial No.
594,443. Divided and this application November8, 1934, SerialNo. 752,068
3 Claims. (01. 230- 221) Our invention relates to compressors and has for its object to provide a new and efiicient fluid compressor for use primarily in refrigeration machines. r
A further object is to provide a compressor which has a new type of noiseless suction valve and which valve is more eflicient than those heretofore, giving greater compressibility to any type of compressor when used therein. 19 A still further object is to provide a simplified construction of suction valve in which air cushionsand air pressure are used to stabilize the operation of the valve and to make it noiseless in operation.
A still further object is to provide a construction of intake or suction valve which is'so built asto have longer life and to prevent pounding oif of the lock' nut thereon.
A still further object is to provide a compressor which has the suction valve so constructed that when starting, no load is carried until the compressor has attained suificient speed to close the suction valve in the piston.
These objects we accomplish with the device illustrated in the accompanying drawing in which similar numerals and letters of reference indicate like parts throughout the several views and as described in the specification forming a part of this application and pointed out in the ap- 30 pended claims.
This application is a division .of our former application filed Feb. 23, 1932, Serial Number 594,443, now Patent No. 1,985,481, of Dec. 25th, 1934, for Compressors.
In the drawing in which We have shown the best and most preferred manner of building our invention,
Figure 1 is a vertical diametrical section of a compressor piston and cylinder with our suction 40 valve used in the piston head.
Figure 2 is a vertical diametrical section through the suction valve and cage removed from the piston.
Figure 3 is a section of the valve cage. 45 Figure 4 is a side elevation of the valve cage and valve.
Figure 5 is a plan view of Figure 3.
Figure 6 is an enlarged section of one edge of the valve and valve seat to show the double converging angle formed in both the valve and seat.
In the drawing we have shown the cylinder as A, the piston as B, and the suction or intake valve as D.
55 The suction valve D is carried in a cage 25 I single ,chamfer.
which cage is cylindrical in form with a valve seat formed in the topend in which the valve D is normally held away from its seat by the spring DI. The cage 25 is provided with a flange 26 therearound-adapted to fit into a socket 21 in the piston head B, and be. secured therein by placing an annular ring 28 thereabove resting on the flange 26 and fitting into an annular step '29 inthe piston head. The ring is'secured by spaced apart tap screws 30.
The bottom end of the cage 25 is formed as an inverted frustum of a cone and the center is bored out to leave an inverted frusto-conical chamber 3| therein and a vertical frusto-conical v valve'stem support bearing 32 is formed concentric within the inverted frusto-conical chamber 3| to support the valve stem D2. The bottom end of the frusto-conical portion of the cage 25 is bored concentric therewith to form a cylinder 33' inwhich a piston 34 is carried and operated. A central bore 35 is provided up throughthe center of the entire cage, and center support bearing 32, in which the valve stem of the valve D is carried, and the lower end of the stem D2 extends down through this bore 35 into the cylinder 33 and passes through a center threaded hole in the piston 34; A pin 36 secures the piston 34 onto the lower end of the stem D2. Thus the operations of the valve D are controlled by the retarded action of the piston in the cylinder.
A small relief port 31 is bored into the cylinder 33 through the side wall of the cage 25 into the cylinder 33 near the top end thereof. The relief port is to allow air to be forced from the cylinder when the valve is opening, but the port 31 is bored into the chamber a short distance from the end thereof so that the piston when rising in the cylinder moves freely until just before it reaches the end of its stroke and the end of the stroke will be cushioned by the compression of the air in the chamber 31 above the piston 32. The top inner edge of the bearing block 32 is inwardly chamfered at 38 to provide an oil retaining well to catch and retain oil for lubrication of the valve stem. Ports 39 through the side walls of the cage 25 provide air passage thereinto from the space surrounding'the piston into the cylinder A.
The valve D and its seat 40 are each cut with their faces made of two angled chamfers so that they will seat more closely than possible with one The two chamfers in the head are shown as 4| and 42 and those in the seat as 43 and 44. These two sets of chamfers fit into each other when the valve is resting in its seat thereby providing a perfect non-leaking valve. The valve spring DI is carried in the chamber 3| surrounding the base of the frustum 32, and engaging the bottom of the valve D.
The piston B of the device is of the usual compressor type having a head and skirt joined together by vertical struts leaving an air space between the skirt and head Which space is joined into the circuit of the system in which the compressor is being used or to the atmosphere if air is being compressed.
Having thus described our invention we desire to secure by Letters Patent and claim:
1. In a compressor suction valve, the combination of a piston; a valve cage carried therein; a ring to secure the cage to the piston; a suction valve mounted in the head of the cage with the face of the valve and the face of the valve seat formed with two converging angles; a small cushioning cylinder formed in the bottom end of the frusto-conical lower end of the valve case; a small piston carried in said cushioning cylinder with the stem of the suction valve secured through said small piston; an escape port through the cage near the top end of the small cushioning cylinder to allow for closing of the valve against air suction and pressure and affording a quick operating valve; and a spring carried in said cage engaging the cage and valve to normally hold the valve slightly away from its seat.
2. A suction valve for compressors, comprising a step out cage adapted to fit into the piston head of the compressor; a frusto-conical cage depending therefrom having a cylinder in the bottom end thereof; a central upwardly extending frustoconical valve stem guide formed within said cage; openings through the wall of the frusto-conical depending cage to allow fluid to pass into the valve chamber which is formed within the cage; a valve seat formed in the head of the cage having the seat of twoangled chamfers joined medially of the seat; a valve carried in said cage having the face formed of like angled chamfers to fit the valve seat and having the stem depending through the valve stem guide; a piston secured onto the lower end of the valve stem to operate within said cylinder in the bottom of the cage; a spring to normally hold the valve spaced from the valve seat, but of a tension to allow the valve to seat when the piston is operating at sufficient speed to close the valve and compress the fluids thereover; and a bleeder hole through the cage into the cylinder near the top end thereof to dampen the movements of the valve but to prevent pressure locking of the valve.
3. In a compressor valve of the type described, the combination of a cylinder having a compression piston operable therein, said piston having a step out opening medially therethrough; a valve cage having a step out flange around the perimieter thereof fitting into the step out in the piston and a depending frusto-conical body below said flange; an annular ring secured above the flange and to the piston to hold the cage within the piston; a frusto-conical opening in said cage with the top edge chamfered to form the valve seat; a frusto-conical valve stem guide formed within the opening in the cage to guide the valve and having the top end of the guide chamfered' inwardly to catch oil for lubricating the valve stem; a small cushion cylinder formed in the bottom end of the cage; a valve carried through a central bore in said cage and guide with the valve to seat in the valve seatformed in the top of the cage when compressing; a spring carried in the opening in the cage to normally hold the valve from its seat; and a small piston carried in said cushion cylinder in thebottom of the cage with the valve stem'secured to the piston to retard the closing and opening of the valve.
FRANCIS C. WILEY. MILTON S. SHEPHERD.
US75206834 1932-02-23 1934-11-08 Suction valve Expired - Lifetime US2078347A (en)

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US75206834 US2078347A (en) 1932-02-23 1934-11-08 Suction valve

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Application Number Priority Date Filing Date Title
US594443A US1985841A (en) 1932-02-23 1932-02-23 Compressor
US75206834 US2078347A (en) 1932-02-23 1934-11-08 Suction valve

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663313A (en) * 1950-05-25 1953-12-22 Sebastian B Doyle Speed control mechanism for automobiles
US2925955A (en) * 1955-12-05 1960-02-23 Oren H Carroll Valve locking device
US3071081A (en) * 1960-12-27 1963-01-01 Louis F Mullick Regulating and mixing device
US3999570A (en) * 1975-02-27 1976-12-28 Ireco Industries, Inc. Irrigation drain valve
US20030235508A1 (en) * 2002-06-19 2003-12-25 Vicars Berton L. Fluid end
US6695007B2 (en) * 2002-04-03 2004-02-24 Gardner Denver, Inc. Suction valve
US6695596B2 (en) * 2000-02-17 2004-02-24 Lg Electronics Inc. Suction gas valve apparatus of reciprocating compressor
US20040234404A1 (en) * 2003-05-20 2004-11-25 Vicars Berton L. Fluid end assembly
US7891374B2 (en) 2009-05-12 2011-02-22 Vicars Berton L Suction valve

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663313A (en) * 1950-05-25 1953-12-22 Sebastian B Doyle Speed control mechanism for automobiles
US2925955A (en) * 1955-12-05 1960-02-23 Oren H Carroll Valve locking device
US3071081A (en) * 1960-12-27 1963-01-01 Louis F Mullick Regulating and mixing device
US3999570A (en) * 1975-02-27 1976-12-28 Ireco Industries, Inc. Irrigation drain valve
US6695596B2 (en) * 2000-02-17 2004-02-24 Lg Electronics Inc. Suction gas valve apparatus of reciprocating compressor
US6695007B2 (en) * 2002-04-03 2004-02-24 Gardner Denver, Inc. Suction valve
US20050000571A1 (en) * 2002-04-03 2005-01-06 Vicars Berton L. Suction valve
US7172175B2 (en) 2002-04-03 2007-02-06 Gardner Denver, Inc. Suction valve
US20030235508A1 (en) * 2002-06-19 2003-12-25 Vicars Berton L. Fluid end
US20040170507A1 (en) * 2002-06-19 2004-09-02 Vicars Berton L. Fluid end
US7335002B2 (en) 2002-06-19 2008-02-26 Gardner Denver, Inc. Fluid end
US7341435B2 (en) 2002-06-19 2008-03-11 Gardner Denver, Inc. Fluid end
US20080138224A1 (en) * 2002-06-19 2008-06-12 Vicars Berton L Fluid end
US20040234404A1 (en) * 2003-05-20 2004-11-25 Vicars Berton L. Fluid end assembly
US7891374B2 (en) 2009-05-12 2011-02-22 Vicars Berton L Suction valve

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