US3613719A - Compressor valve arrangement - Google Patents

Compressor valve arrangement Download PDF

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Publication number
US3613719A
US3613719A US864392A US3613719DA US3613719A US 3613719 A US3613719 A US 3613719A US 864392 A US864392 A US 864392A US 3613719D A US3613719D A US 3613719DA US 3613719 A US3613719 A US 3613719A
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US
United States
Prior art keywords
valve plate
valve
control
piston
valve seat
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
US864392A
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English (en)
Inventor
Friedrich Bauer
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.)
Hoerbiger Ventilwerke GmbH and Co KG
Original Assignee
Hoerbiger Ventilwerke GmbH and Co KG
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 Hoerbiger Ventilwerke GmbH and Co KG filed Critical Hoerbiger Ventilwerke GmbH and Co KG
Application granted granted Critical
Publication of US3613719A publication Critical patent/US3613719A/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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • F04B49/243—Bypassing by keeping open the inlet valve
    • 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
    • F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
    • F04B39/1033—Adaptations or arrangements of distribution members the members being disc valves annular disc valves
    • 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
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y10T137/7769—Single acting fluid servo
    • 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]
    • Y10T137/7876—With external means for opposing bias

Definitions

  • a compressor valve arrangement having a device for regulating delivery quantities and wherein a valve plate can be raised from a valve seat against a closing force by means of control pistons displaceable in cylinder bores in the valve seat.
  • valves of piston type compressors to be provided with devices which make it possible to raise the valve plate from the valve seat and keep it open, in order to permit starting up of the compressor under no-load conditions, and possibly also regulation of the delivery quantity during operation.
  • the induction valves are generally kept open by these devices so that the medium drawn in is again forced back into the induction line during the pressure stroke of the compres sor piston.
  • it is also possible to bring about regulation of the delivery quantity by raising the pressure valve plates, the compressed gas thus flowing back into the cylinder and preventing opening of the induction valve.
  • control pistons In known types of valve having control pistons acted upon by a pneumatic or hydraulic medium for raising the valve plate, the control pistons are disposed in cylinder bores the axes of which are perpendicular to the plane of the valve plate to be raised. The control pistons are thus displaceable in the direction of movement of the valve plate and act upon the latter either directly or by means of lifting pins fastened on pistons.
  • the cylinder bores of the control pistons are also disposed in the lifting direction. Since, as a result of the small stroke of the valve plate, which is of the order of magnitude of about 1 mm., the adjusting path of the control pistons is equally small, it is necessary, for the purpose of achieving sufficiently great lifting forces at a specific control pressure to provide either a plurality of control pistons or relatively large control pistons. In many cases, the space necessary for this purpose is not available in the valve seat itself, so that bulky designs, with lifting pins disposed on the control pistons, are required. In addition, in the event of the regulating device requiring too much room, there is a disadvantageous restriction of the valve cross section available for the passage of the medium delivered.
  • the invention has the aim of improving compressor valves with a regulating device of the type, mentioned particularly in respect of the space requirement of the regulation device.
  • a compressor valve arrangement comprising a valve seat having flow channels therein controlled by a valve plate, spring means arranged to press the valve plate on to the valve seat and lifting means arranged to raise the valve plate from the valve seat against closing forces acting upon the valve plate, wherein the lifting means comprises control pistons displaceable in cylinder bores in the valve seat, the cylinder bores being disposed in the valve seat with their axes inclined in relation to the direction of movement of the valve plate, and the control pistons each have a control face inclined to the axis of the piston and in driving connection with the valve plate, preferably with the interposition of a lifting piece.
  • the axes of the cylinder bores are arranged perpendicularly to the direction of movement of the valve plate, and the control pistons each have, at one end, a conical control surface on which the associated lifting piece is supported.
  • This form of construction can be easily manufactured, because the cylinder bores can be provided radially in the peripheral face of the valve seat, and is distinguished by a particularly low space requirement, only a slight structural height being necessary for the valve seat.
  • the radial arrangement of the cylinder bores simpli fies the supplying of the pressure medium.
  • a desired transmission ratio may easily be established by selecting the inclination of the conical control faces at the ends of the control pistons.
  • the lifting pieces advantageously consist of balls, which can be obtained cheaply and which cause only relatively low-frictional forces during the lifting movement.
  • the control pistons may be of hollow construction and may each contain in their interior a return spring by which they are restored to their original position after the control pressure has been cut off. In many cases, however, the closing forces acting upon the valve plate may alone be sufficient for returning control pistons.
  • the return springs may be seated in blind bores at the end face of the control pistons which is opposite the end of the piston which is acted upon by the pressure. The return spring may conveniently be supported at one end against the inside of the pressure-loaded end wall of the hollow control piston, and at the other end against a pressure pin which projects from the control piston and is continuous with the base of the cylinder bore containing the piston.
  • control pistons are expediently constructed in two parts, and each consist of a hollow cylinder, which is sealed at one end, and a cap which is fitted on to the open end of the said cylinder and is preferably provided with the inclined control face.
  • the control pistons then form, together with their return spring, a self-contained component and which can be inserted and removed easily and quickly.
  • FIG. 1 a compressor valve according to the invention in axial cross section
  • FIG. 2 an enlarged detail of the valve
  • FIG. 3 a partially diagrammatic detail of another form of valve arrangement.
  • FIG. 1 shows the upper part of a compressor having a cylinder sleeve 1 and a piston 2.
  • annular induction valve 3 On a flangelike edge of the cylinder sleeve 1 is fitted an annular induction valve 3, which, together with the cylinder sleeve 1 is fastened in a suspended manner on the compressor casing 5 by means of screws 4.
  • a pressure valve 6 Disposed concentrically inside the annular induction valve 3 is a pressure valve 6 which is only shown in section and is pressed on to its seating surface, formed by the induction valve 3, via a pressure part 7 and by means of a spring 8 which is braced against a cover 9.
  • the induction valve 3 has a valve seat 10, with flow channels 11 controlled by a valve plate 12 consisting of a single ring, and also has a catcher l3 and, braced against the latter, more annular plates 14, particularly one or more spring plates, which press the valve plate 12 on to the valve seat 10.
  • valve seat 10 In the valve seat 10 and distributed over the periphery thereof, there are provided a plurality of cylinder bores 15, for example eight in number, which start at the outer surface of the valve seat 10 and extend in the radial direction so that their axes are inclined at a right angle to the direction of movement of the valve plate 12.
  • control pistons 16 In the cylinder bores 15 are disposed control pistons 16 which, at their inner end, have a conical control face 17, on each of which a ball 18, which serves as a lifting piece, is guided.
  • the balls 18 lie below the valve plate 12 and form a driving connection between the control piston 16 and the valve plate 12.
  • a channel 19 is formed in the compressor casing 5 for supplying a pneumatic or hydraulic pressure medium to the cylinder bores 15, and opens into a sealed-off annular groove 20 which is left between the induction valve 3 and the compressor casing 5 and which surrounds the valve seat 10, thus providing a supply of pressure medium to the cylinder bores 15.
  • the control piston 16 illustrated in FIG. 2 is of hollow construction and is provided with a return spring 21.
  • the control piston consists of a hollow cylinder 22, which is closed at one end, and a cap 23 which is fitted on to the open end of the said cylinder and is bevelled to form the conical control face 17.
  • the return spring 21 is braced at one end against the inside of the end wall of the hollow cylinder 22 and at the other end, against a pressure pin 24 which passes through the cap 23 and is continuous, at its outer end, with the base of the cylinder bore 15.
  • FIG, 3 shows a form of embodiment in which the cylinder bore is inclined at an acute angle in relation to the direction of movement of the valve plate 12.
  • the control piston 16' in this case acts directly, without the interposition of a lifting piece, upon the valve plate 12, the control face 17 sliding on the underside of the valve plate 12 during the adjusting movement.
  • This embodiment too, is distinguished by a low space requirement, while, in the example illustrated, the cylinder bore 15 intersects with the flow channel 11 in the valve seat 10 so that, because of the arrangement of the control pistons 16', there is practically no loss of flow cross section in the valve.
  • an advantageous ratio between the adjusting movement of the control piston 16 and the lifting movement of the valve plate 12 is achieved, the size of which can be determined according to choice by selecting the angle of inclination of the cylinder bore 15.
  • the devices for regulating delivery quantities shown in the exemplified embodiments may be applied with equal advantage both to induction valves and to pressure valves.
  • a compressor valve arrangement comprising a valve seat having flow channels therein controlled by a valve plate, spring means arranged to press the valve plate on to the valve seat and lifting means arranged to raise the valve plate from the valve seat against a closing force acting upon the valve plate, wherein the lifting means comprises control pistons displaceable in cylinder bores in the valve seat, each of said con trol pistons being of hollow construction having a control face inclined in relation to the piston axis in driving connection with the valve plate and further having a pressure-loaded end wall spaced from said control face, a pressure pin within each piston and projecting outwardly therefrom in contact with the base of each respective cylinder bore, a return spring within each piston, one end of the return spring bearing against said pressure pin and the other end of said return spring bearing against the inner surface of said pressure-loaded end wall, and the cylinder bores being disposed in the valve seat with their axes inclined to the direction of movement of the valve plate.
  • each control piston consists of a hollow cylinder sealed at one end, a cap fitted on the open end of the said cylinder, said inclined control face being defined by said cap, and said pressure pin projecting through said cap.

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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)
US864392A 1968-10-16 1969-10-07 Compressor valve arrangement Expired - Lifetime US3613719A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1012968A AT277434B (de) 1968-10-16 1968-10-16 Verdichterventil mit einer Einrichtung zur Liefermengenregelung

Publications (1)

Publication Number Publication Date
US3613719A true US3613719A (en) 1971-10-19

Family

ID=3620102

Family Applications (1)

Application Number Title Priority Date Filing Date
US864392A Expired - Lifetime US3613719A (en) 1968-10-16 1969-10-07 Compressor valve arrangement

Country Status (7)

Country Link
US (1) US3613719A (de)
AT (1) AT277434B (de)
DE (1) DE1948491A1 (de)
DK (1) DK121567B (de)
FR (1) FR2020833A1 (de)
GB (1) GB1242153A (de)
NL (1) NL6914885A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4362475A (en) * 1981-03-16 1982-12-07 Joy Manufacturing Company Compressor inlet valve
US20120037824A1 (en) * 2010-08-16 2012-02-16 Bryan Quinn Leger Stem guide apparatus for use with fluid valve actuators
US20130121860A1 (en) * 2011-11-10 2013-05-16 Gene Bluhm Retrofit of a reciprocating compressor with a concentric valve
CN109519570A (zh) * 2019-01-04 2019-03-26 无锡威孚高科技集团股份有限公司 用于scr尿素泵的单向阀
CN113482885A (zh) * 2021-07-27 2021-10-08 胡小林 一种活塞式压缩机用阀门
CN114249425A (zh) * 2021-12-28 2022-03-29 刘亮 一种人工湿地脱氮污水处理装置及污水处理方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE757358A (fr) * 1969-10-15 1971-03-16 Reumann Kurt H Element de construction prefabrique en forme de plaque, notamment en beton
DE3234429A1 (de) * 1982-09-17 1984-03-22 Fichtel & Sachs Ag, 8720 Schweinfurt Saugventil fuer hubkolbenmaschinen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US856981A (en) * 1906-08-17 1907-06-11 Burnham Williams & Co Means for hydraulically operating valves and cocks.
US2646070A (en) * 1947-06-25 1953-07-21 Cons Vultee Aircraft Corp Hydraulic flow regulator
US2763425A (en) * 1955-06-09 1956-09-18 Borg Warner Compressor unloader
US2973132A (en) * 1958-10-20 1961-02-28 Worthington Corp Unloading means for reciprocating compressor
US3042289A (en) * 1957-04-15 1962-07-03 Westinghouse Electric Corp Compressor loaders-unloaders
US3071309A (en) * 1959-05-11 1963-01-01 Trane Co Compressor cylinder and unloader apparatus
US3294314A (en) * 1965-03-24 1966-12-27 Hoerbiger Ventilwerke Ag Lifting device for compressor valves

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US856981A (en) * 1906-08-17 1907-06-11 Burnham Williams & Co Means for hydraulically operating valves and cocks.
US2646070A (en) * 1947-06-25 1953-07-21 Cons Vultee Aircraft Corp Hydraulic flow regulator
US2763425A (en) * 1955-06-09 1956-09-18 Borg Warner Compressor unloader
US3042289A (en) * 1957-04-15 1962-07-03 Westinghouse Electric Corp Compressor loaders-unloaders
US2973132A (en) * 1958-10-20 1961-02-28 Worthington Corp Unloading means for reciprocating compressor
US3071309A (en) * 1959-05-11 1963-01-01 Trane Co Compressor cylinder and unloader apparatus
US3294314A (en) * 1965-03-24 1966-12-27 Hoerbiger Ventilwerke Ag Lifting device for compressor valves

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4362475A (en) * 1981-03-16 1982-12-07 Joy Manufacturing Company Compressor inlet valve
US20120037824A1 (en) * 2010-08-16 2012-02-16 Bryan Quinn Leger Stem guide apparatus for use with fluid valve actuators
US8955537B2 (en) * 2010-08-16 2015-02-17 Fisher Controls International, Llc Stem guide apparatus for use with fluid valve actuators
US20130121860A1 (en) * 2011-11-10 2013-05-16 Gene Bluhm Retrofit of a reciprocating compressor with a concentric valve
CN109519570A (zh) * 2019-01-04 2019-03-26 无锡威孚高科技集团股份有限公司 用于scr尿素泵的单向阀
CN109519570B (zh) * 2019-01-04 2023-09-08 无锡威孚高科技集团股份有限公司 用于scr尿素泵的单向阀
CN113482885A (zh) * 2021-07-27 2021-10-08 胡小林 一种活塞式压缩机用阀门
CN114249425A (zh) * 2021-12-28 2022-03-29 刘亮 一种人工湿地脱氮污水处理装置及污水处理方法

Also Published As

Publication number Publication date
FR2020833A1 (de) 1970-07-17
NL6914885A (de) 1970-04-20
AT277434B (de) 1969-12-29
DE1948491A1 (de) 1970-04-30
GB1242153A (en) 1971-08-11
DK121567B (da) 1971-11-01

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