US20040018106A1 - Compressor and method with an improved inlet and discharge valve arrangement - Google Patents
Compressor and method with an improved inlet and discharge valve arrangement Download PDFInfo
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- US20040018106A1 US20040018106A1 US10/619,831 US61983103A US2004018106A1 US 20040018106 A1 US20040018106 A1 US 20040018106A1 US 61983103 A US61983103 A US 61983103A US 2004018106 A1 US2004018106 A1 US 2004018106A1
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- bore
- fluid
- compressor
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- piston
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Classifications
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- 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
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- 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
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- 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
-
- 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
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- 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
- F04B39/125—Cylinder heads
Definitions
- This invention relates, in general, to a fluid compressor, and, more particularly, to a compressor having an improved inlet valve arrangement.
- Most current reciprocating compressor cylinders utilize a piston that reciprocates in a compressor cylinder formed in a frame with outer heads used to close off the ends of the cylinder.
- Inlet and discharge “check type” valves are provided for controlling the intake into, and the discharge from, the cylinder, and the reciprocating piston compresses the fluid internally within the compressor cylinder confines.
- the valves can be mounted tangentially to the bore of the cylinder or in the heads at a variety of angles to the axis of the piston.
- FIG. 1 is a sectional view of the housing and heads of a fluid compressor according to an embodiment of the present invention.
- FIG. 2 is a side elevational view taken along the line 2 - 2 of FIG. 1.
- FIG. 3 is an elevational view of an inlet valve assembly utilized in the compressor of FIG. 1.
- FIG. 4 is a view similar to FIG. 1, but depicting inlet valve assemblies installed in the heads of FIG. 1.
- FIGS. 5 a - 5 h are diagrammatic views depicting the operation of the compressor of FIG. 3.
- FIG. 6 is a plan view of an alternate embodiment of the present invention.
- FIG. 7 is a cross-sectional view taken along the line 7 - 7 of FIG. 6;
- the reference numeral 10 refers, in general, to a compressor for compressing a fluid, such as gas, according to an embodiment of the present invention with some of its components being omitted in the interest of clarity.
- the compressor 10 includes a cylindrical housing 12 defining an internal cylindrical bore 14 and an outlet 15 registering with the bore.
- An outer head 16 is formed at one end of the housing 12
- a frame head 18 is mounted at the other end of the housing.
- the heads 16 and 18 are connected to the housing 12 in a conventional manner, and are configured to receive other components and permit fluid flow through the heads in a manner to be described.
- each chamber 20 , 22 , 24 , 26 , and 28 extends at an angle to the longitudinal axis of the bore 14 as shown in connection with the chambers 20 and 24 in FIG. 1. As a non-limitative example, the latter angle is approximately 45 degrees.
- the chamber 20 extends between two openings 20 a and 20 b, with the opening 24 b being in communication with the chamber.
- chamber 24 extends between two openings 24 a and 24 b in communication with the chamber 24 .
- the chambers 22 , 26 and 28 are configured in a similar manner.
- a valve assembly 30 includes a cylindrical cage 32 extending between a cylindrical cover 34 and a valve unit 36 and connected thereto in any conventional manner.
- the cage 32 has a plurality of openings 32 a formed through its side wall, and a flange 34 a is provided on the cover 34 for engaging the outer surface of the head.
- the valve unit 36 is conventional and can be in the form of a plate type valve, a poppet valve, a channel ring, or the like.
- the valve unit 36 can be formed by a plurality of stacked plates as fully disclosed in U.S. Pat. Nos. 4,532,959 and 5,001,383 both of which are assigned to the assignee of the present invention.
- the valve unit 36 functions to permit the flow of gas through the unit in a direction indicated by the solid arrow in FIG. 3 in response to a predetermined fluid pressure in the chamber 20 , but prevents flow in an opposite direction.
- the disclosure of each of the above-identified patents is hereby incorporated by reference.
- the valve assembly 30 is mounted in the head 16 with the cover 34 extending in the opening 20 a (identified in FIG. 1) of the chamber 20 and with its flange extending over the outer surface of the head.
- a plurality of bolts 37 (two of which are shown) extend through corresponding openings in the flange 34 a which align with openings formed in the head 16 (FIG. 2) and surrounding the chamber 20 .
- the cage 32 extends within the chamber 20
- the valve unit 36 extends in the opening 20 b in communication with the bore 14 .
- a flanged inlet conduit 38 is formed integrally with the valve head 16 and is adapted to receive a fluid, such as gas, from an external source.
- the conduit 38 extends to an inlet passage (not shown) in the interior of the head, which inlet passage is connected to other passages formed in the interior of the head 16 that, in turn, extend to the interconnected inlet chambers 20 , 22 , 24 , 26 , and 28 , so that the gas is distributed to all of the chambers.
- Valve assemblies identical to the valve assembly 30 are mounted in the chambers 22 , 24 , 26 , and 28 in a similar manner, with the valve assembly in the chamber 14 also being shown in FIG. 4.
- the axis A of each valve assembly, including the valve assembly 30 extend at an angle to the axis of the bore 14 , which, as stated above for the purpose of example, is approximately forty-five degrees.
- the head 18 is similar to the head 16 and as such, contains five chambers identical to the chambers 20 , 22 , 24 , 26 , and 28 , and five valve assemblies identical to the assembly 30 , this structure will not be described in detail. Thus, when gas is introduced into the head 18 , it is distributed to the valve assemblies for discharge into the bore, 14 in the same manner as discussed above.
- a packing gland assembly 40 is mounted in a chamber formed in the interior of the housing 12 in a conventional manner and seals compressed gas from leaking past a drive rod 42 which is mounted for reciprocal movement in the bore 14 .
- An end portion of the rod 42 projects from the bore and, although not shown in the drawings, it is understood that the latter end portion is connected to a conventional prime mover for reciprocating the rod in a right-to-left and in a left-to right direction as viewed in FIG. 4 and as shown by the double-headed arrow.
- a piston/valve unit 46 is mounted to the other end of the rod 42
- another piston/valve unit 48 is mounted to the rod 42 in a spaced relation to the unit 46 .
- the piston/valve units 46 and 48 can be of any conventional design and function in a manner to be described to both compress the gas in the bore 14 and selectively permit the flow of the gas through the units in a manner to be described.
- each unit 46 and 48 is formed by a plurality of stacked plates as fully disclosed in the above-mentioned U.S. Pat. Nos. 4,532,959 and 5,001,383.
- the units 46 and 48 function as pistons to compress the gas in certain sections of the bore 14 under conditions to be described, as well as permit the flow of gas through the units in a direction indicated by the arrows in FIG. 4 in response to a predetermined gas pressure in certain sections of the bore, but prevent flow in an opposite direction, also in a manner to be described.
- the units 46 and 48 divide the bore 14 into three sections 14 a, 14 b, and 14 c .
- the unit 46 and the corresponding interior walls of the cylinder 12 including an end wall, define the bore section 14 a .
- the units 46 and 48 as well as the corresponding interior wall of the housing 12 , define a bore section 14 b; and the unit 48 and the corresponding interior walls of the cylinder 12 , define a bore section 14 c .
- the significance of these bore sections 14 a, 14 b , and 14 c will be apparent from a description of the operation of the compressor 10 which is described with reference to FIGS. 5 a - 5 h.
- a fluid such as gas, or other product
- a fluid is introduced into the chambers 20 , 22 , 24 , 26 , and 28 (FIGS. 1 and 2) via the inlet conduit 38 and enters the interior of the cage 32 of the valve assembly 30 and the interior of the cages of the other four valve assemblies associated with the chamber 22 , 24 , 26 , and 28 .
- gas is also in the bore section 14 c and that the rod 42 , and therefore the units 46 and 48 , are in their extreme left position, as viewed in the FIG. 5 a as a result of a previous cycle of the operation.
- the rod 42 and therefore the units 46 and 48 are moved in a left-to-right direction from the position of FIG. 5 a to the position of FIG. 5 b, as shown by the solid arrow, under the power of the above-mentioned prime mover.
- This movement draws gas from the chamber 20 , though the valve unit 36 of the valve assembly 30 as described above, and into the bore section 14 a; while gas is drawn from the other four chambers 22 , 24 , 26 , and 28 through their respective units, and into the bore section 14 a, as shown by the hollow arrows.
- This movement also causes the gas in the bore section 14 c to be compressed.
- gas is also introduced into the above-mentioned chambers in the head 18 via the inlet conduit associated with the latter head, and enters the interiors of the valve assemblies respectively associated with the chambers, in the same manner as discussed above in connection with the valve head 16 .
- the rod 42 and therefore the units 46 and 48 , are moved in a right-to-left direction from the position of FIG. 5 e to the position of FIG. 5 f; as shown by the solid arrow, under the power of the above-mentioned prime mover.
- This movement draws gas from the chambers associated with the head 18 , and through their respective valve assemblies, and into the bore section 14 c, as shown by the hollow arrows.
- This movement also causes the gas in the bore section 14 a to be compressed.
- FIGS. 6 and 7 An alternative embodiment of the compressor is shown, in general, by the reference numeral 50 in FIGS. 6 and 7.
- the compressor 50 includes a housing 52 defining an internal cylindrical bore 54 (FIG. 7) and an outlet (not shown) registering with the bore.
- An outer head 56 (FIG. 6) is formed at one end of the housing 52 and a frame head 58 is mounted at the other end of the housing.
- the heads 56 and 58 are connected to the housing 52 in a conventional manner, and are configured to receive other components and permit gas flow through the heads in a manner to be described.
- valve assemblies 70 , 72 , 74 , and 76 are disposed in the chambers 60 , 62 , 64 , and 66 , respectively.
- the axes of the chambers 60 , 62 , 64 , and 66 and therefore, the axes of the valve assemblies 70 , 72 , 74 , and 76 , extend perpendicularly to the bore.
- valve assemblies 70 , 72 , 74 , and 76 will not be described in detail since they are similar to the valve assembly 30 of the previous embodiment with the exception that the axial length of their respective cages, and therefore the sizes of the openings in the cages, are smaller when compared to the valve assembly 30 .
- the outer surface of the head 56 is provided with four angularly-spaced openings, two of which are shown by the reference numerals 56 a and 56 b, which are connected to an inlet manifold, or conduit (not shown), for distributing gas, or other product to the chambers 54 , 56 , 58 and 60 .
- the gas thus passes into each valve assembly 70 , 72 , 74 , and 76 through the above-mentioned openings in their respective cages and thus discharges through the units of the assemblies into the bore 54 under the proper pressure conditions as in the previous embodiment.
- the outer surface of the head 58 is provided with four angularly-spaced, openings, two of which are shown by the reference numerals 58 a and 58 b which are also connected to an inlet manifold, or conduit, for distributing gas, or other product to the chambers associated with the head 58 . Since the head 58 is identical to the head 56 , it will not be described in detail. The gas thus passes through the above-mentioned openings in the respective cages of the valve assemblies (not shown) associated with the head 58 , and is discharged into the bore 54 in a similar manner as discussed above.
- a packing gland assembly is mounted in a chamber formed in the interior of the housing 12 in a conventional manner and supports a drive rod 78 (FIG. 7) which is mounted for reciprocal movement in the bore 54 .
- An end portion of the rod 78 projects from the bore 54 and, although not shown in the drawings, it is understood that the latter end portion is connected to a conventional prime mover for reciprocating the rod in a right-to-left and in a left-to right direction as viewed in FIG. 6.
- Two units (not shown) are mounted to the rod 78 in a spaced relation. Since the rod 78 and the units are identical to, and function in the same manner as, the rod 42 and the units 46 and 48 , they will not be described in further detail.
- the operation of the compressor 50 is the same as that of the previous embodiment with the exception that the gas is introduced into the bore 54 in a radial direction via the four valve assemblies 70 , 72 , 74 , and 76 .
- the operation of the compressor 50 is identical to that described in FIGS. 5 a - 5 h in connection with the previous embodiment.
- FIGS. 6 and 7 thus enjoys all of the advantages of the previous embodiment with respect to horsepower output and efficiency.
Abstract
A gas compressor and method according to which a plurality of inlet valve assemblies are angularly spaced around a bore. A piston reciprocates in the bore to draw the fluid from the valve assemblies during movement of the piston unit in one direction and compress the fluid during movement of the piston unit in the other direction and the valve assemblies prevent fluid flow from the bore to the valve assemblies during the movement of the piston in the other direction. A discharge valve is associated with the piston to permit the discharge of the compressed fluid from the bore.
Description
- This invention relates, in general, to a fluid compressor, and, more particularly, to a compressor having an improved inlet valve arrangement.
- Most current reciprocating compressor cylinders utilize a piston that reciprocates in a compressor cylinder formed in a frame with outer heads used to close off the ends of the cylinder. Inlet and discharge “check type” valves are provided for controlling the intake into, and the discharge from, the cylinder, and the reciprocating piston compresses the fluid internally within the compressor cylinder confines. The valves can be mounted tangentially to the bore of the cylinder or in the heads at a variety of angles to the axis of the piston.
- However half the available area is usually allocated to the inlet valves and porting, and the other half to the discharge valves and porting. Thus, only a relatively low number of inlet valves can be used at each end of the compressor. This, of course, limits the inlet valve area and therefore the compression efficiency of the compressor.
- FIG. 1 is a sectional view of the housing and heads of a fluid compressor according to an embodiment of the present invention.
- FIG. 2 is a side elevational view taken along the line2-2 of FIG. 1.
- FIG. 3 is an elevational view of an inlet valve assembly utilized in the compressor of FIG. 1.
- FIG. 4 is a view similar to FIG. 1, but depicting inlet valve assemblies installed in the heads of FIG. 1.
- FIGS. 5a-5 h are diagrammatic views depicting the operation of the compressor of FIG. 3.
- FIG. 6 is a plan view of an alternate embodiment of the present invention.
- FIG. 7 is a cross-sectional view taken along the line7-7 of FIG. 6;
- Referring to FIG. 1 of the drawings the
reference numeral 10 refers, in general, to a compressor for compressing a fluid, such as gas, according to an embodiment of the present invention with some of its components being omitted in the interest of clarity. Thecompressor 10 includes acylindrical housing 12 defining an internalcylindrical bore 14 and anoutlet 15 registering with the bore. Anouter head 16 is formed at one end of thehousing 12, and aframe head 18 is mounted at the other end of the housing. Theheads housing 12 in a conventional manner, and are configured to receive other components and permit fluid flow through the heads in a manner to be described. - As shown in FIG. 2, five angularly-spaced
inlet chambers head 16. Thechambers head 16 to permit fluid flow from chamber-to-chamber as will be described. The axis of eachchamber bore 14 as shown in connection with thechambers - As also shown in FIG. 1, the
chamber 20 extends between twoopenings 20 a and 20 b, with the opening 24 b being in communication with the chamber. Similarly,chamber 24 extends between twoopenings 24 a and 24 b in communication with thechamber 24. It is understood that thechambers - Referring to FIG. 3, a
valve assembly 30 includes acylindrical cage 32 extending between acylindrical cover 34 and avalve unit 36 and connected thereto in any conventional manner. Thecage 32 has a plurality ofopenings 32 a formed through its side wall, and a flange 34 a is provided on thecover 34 for engaging the outer surface of the head. - The
valve unit 36 is conventional and can be in the form of a plate type valve, a poppet valve, a channel ring, or the like. As a non-limitative example, thevalve unit 36 can be formed by a plurality of stacked plates as fully disclosed in U.S. Pat. Nos. 4,532,959 and 5,001,383 both of which are assigned to the assignee of the present invention. As well-disclosed in these patents, thevalve unit 36 functions to permit the flow of gas through the unit in a direction indicated by the solid arrow in FIG. 3 in response to a predetermined fluid pressure in thechamber 20, but prevents flow in an opposite direction. The disclosure of each of the above-identified patents is hereby incorporated by reference. - As shown in FIG. 4, the
valve assembly 30 is mounted in thehead 16 with thecover 34 extending in the opening 20 a (identified in FIG. 1) of thechamber 20 and with its flange extending over the outer surface of the head. A plurality of bolts 37 (two of which are shown) extend through corresponding openings in the flange 34 a which align with openings formed in the head 16 (FIG. 2) and surrounding thechamber 20. Thecage 32 extends within thechamber 20, and thevalve unit 36 extends in the opening 20 b in communication with thebore 14. - A flanged
inlet conduit 38 is formed integrally with thevalve head 16 and is adapted to receive a fluid, such as gas, from an external source. Theconduit 38 extends to an inlet passage (not shown) in the interior of the head, which inlet passage is connected to other passages formed in the interior of thehead 16 that, in turn, extend to the interconnectedinlet chambers valve assembly 30 are mounted in thechambers chamber 14 also being shown in FIG. 4. Thus, the axis A of each valve assembly, including thevalve assembly 30, extend at an angle to the axis of thebore 14, which, as stated above for the purpose of example, is approximately forty-five degrees. - Thus, when the gas is introduced into the
head 16 via theinlet conduit 38 the gas is distributed to all of thechambers valve assembly 30, associated with thechambers - Since the
head 18 is similar to thehead 16 and as such, contains five chambers identical to thechambers assembly 30, this structure will not be described in detail. Thus, when gas is introduced into thehead 18, it is distributed to the valve assemblies for discharge into the bore,14 in the same manner as discussed above. - A
packing gland assembly 40 is mounted in a chamber formed in the interior of thehousing 12 in a conventional manner and seals compressed gas from leaking past adrive rod 42 which is mounted for reciprocal movement in thebore 14. An end portion of therod 42 projects from the bore and, although not shown in the drawings, it is understood that the latter end portion is connected to a conventional prime mover for reciprocating the rod in a right-to-left and in a left-to right direction as viewed in FIG. 4 and as shown by the double-headed arrow. - A piston/
valve unit 46 is mounted to the other end of therod 42, and another piston/valve unit 48 is mounted to therod 42 in a spaced relation to theunit 46. The piston/valve units bore 14 and selectively permit the flow of the gas through the units in a manner to be described. As a non-limitative example, eachunit units bore 14 under conditions to be described, as well as permit the flow of gas through the units in a direction indicated by the arrows in FIG. 4 in response to a predetermined gas pressure in certain sections of the bore, but prevent flow in an opposite direction, also in a manner to be described. - The
units cylinder 12, divide thebore 14 into threesections unit 46 and the corresponding interior walls of thecylinder 12, including an end wall, define the bore section 14 a. Similarly, theunits housing 12, define abore section 14 b; and theunit 48 and the corresponding interior walls of thecylinder 12, define abore section 14 c. The significance of thesebore sections compressor 10 which is described with reference to FIGS. 5a-5 h. - Referring to FIG. 5a, a fluid, such as gas, or other product, is introduced into the
chambers inlet conduit 38 and enters the interior of thecage 32 of thevalve assembly 30 and the interior of the cages of the other four valve assemblies associated with thechamber bore section 14 c and that therod 42, and therefore theunits - The
rod 42, and therefore theunits chamber 20, though thevalve unit 36 of thevalve assembly 30 as described above, and into the bore section 14 a; while gas is drawn from the other fourchambers bore section 14 c to be compressed. - Further left-to-right movement of the
rod 42, and therefore theunits bore section 14 c. This movement continues until the pressure in thebore section 14 c is great enough to cause movement of the compressed gas in thebore section 14 c through theunit 48 in a general right-to-left direction and into thebore section 14 b, as shown by the hollow arrows in FIG. 5c. The compressed gas in thebore section 14 b exits thebody member 12 through theoutlet 15 and is transferred from thecompressor 10 via a pipe, or the like, connected to the outlet. In the meantime, gas continues to be drawn into thebore section 14. This movement of therod 42, and therefore theunits - Referring to FIG. 5e, gas is also introduced into the above-mentioned chambers in the
head 18 via the inlet conduit associated with the latter head, and enters the interiors of the valve assemblies respectively associated with the chambers, in the same manner as discussed above in connection with thevalve head 16. - The
rod 42, and therefore theunits head 18, and through their respective valve assemblies, and into thebore section 14 c, as shown by the hollow arrows. This movement also causes the gas in the bore section 14 a to be compressed. - Further right-to-left movement of the
rod 42, and therefore theunits bore section 14 c in the manner discussed above, and further increases the fluid pressure in the bore section 14 a. This movement continues until the pressure in the bore section 14 a is great enough to cause movement of the compressed gas in the latter bore section, through theunit 46 in a general left-to-right direction and into thebore section 14 b, as shown by the hollow arrows in FIG. 5g. The compressed gas in thebore section 14 b exits thebore 14 and the body member through theoutlet 15 and is transferred from thecompressor 10 via the above-mentioned pipe. In the meantime, gas continues to be drawn into thebore section 14 c. This movement of therod 42, and therefore theunits - It can be appreciated that the use of a plurality of inlet valves circumferentially spaced around the bore and the discharge valves in the bore area, significantly increases the available flow area for the gas being processed to enter the
bore sections 14 a and 14 c thereby improving the compression efficiency. - An alternative embodiment of the compressor is shown, in general, by the
reference numeral 50 in FIGS. 6 and 7. Thecompressor 50 includes ahousing 52 defining an internal cylindrical bore 54 (FIG. 7) and an outlet (not shown) registering with the bore. An outer head 56 (FIG. 6) is formed at one end of thehousing 52 and aframe head 58 is mounted at the other end of the housing. Theheads housing 52 in a conventional manner, and are configured to receive other components and permit gas flow through the heads in a manner to be described. - As shown in FIG. 7, four angularly-spaced, interconnected,
inlet chambers head 56 and are interconnected in the interior of thehead 16 to permit gas flow from chamber to chamber as will be described. Fourvalve assemblies chambers chambers valve assemblies valve assemblies valve assembly 30 of the previous embodiment with the exception that the axial length of their respective cages, and therefore the sizes of the openings in the cages, are smaller when compared to thevalve assembly 30. - Referring to FIG. 6, the outer surface of the
head 56 is provided with four angularly-spaced openings, two of which are shown by thereference numerals chambers valve assembly bore 54 under the proper pressure conditions as in the previous embodiment. - Similarly, the outer surface of the
head 58 is provided with four angularly-spaced, openings, two of which are shown by thereference numerals head 58. Since thehead 58 is identical to thehead 56, it will not be described in detail. The gas thus passes through the above-mentioned openings in the respective cages of the valve assemblies (not shown) associated with thehead 58, and is discharged into thebore 54 in a similar manner as discussed above. - Although not shown in FIGS. 6 and 7, it is understood that a packing gland assembly is mounted in a chamber formed in the interior of the
housing 12 in a conventional manner and supports a drive rod 78 (FIG. 7) which is mounted for reciprocal movement in thebore 54. An end portion of therod 78 projects from thebore 54 and, although not shown in the drawings, it is understood that the latter end portion is connected to a conventional prime mover for reciprocating the rod in a right-to-left and in a left-to right direction as viewed in FIG. 6. Two units (not shown) are mounted to therod 78 in a spaced relation. Since therod 78 and the units are identical to, and function in the same manner as, therod 42 and theunits - The operation of the
compressor 50 is the same as that of the previous embodiment with the exception that the gas is introduced into thebore 54 in a radial direction via the fourvalve assemblies compressor 50 is identical to that described in FIGS. 5a-5 h in connection with the previous embodiment. - The embodiment of FIGS. 6 and 7 thus enjoys all of the advantages of the previous embodiment with respect to horsepower output and efficiency.
- It is understood that other alternates and equivalents of each of the above embodiments are within the scope of the invention. For example, the number of inlet chamber and valve assemblies in each of the above embodiments can vary. Also, the
valve assembly 30 in the embodiment of FIGS. 1-5 does not have to have acage 32. - Those skilled in the art will readily appreciate that many other modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention as defined in the following claims. In the claims, means-plus-function clauses are intended to cover the structures described herein as performing the recited function and not only structural equivalents, but also equivalent structures.
Claims (28)
1. A fluid compressor comprising a housing defining an internal bore and an outlet registering with the bore; at least one head mounted to the housing; a plurality of angularly spaced inlet valve assemblies disposed in the at least one head for permitting the flow of the fluid from the head into the bore and for preventing the flow of the fluid from the bore to the head; and at least one piston/valve unit mounted in the bore for reciprocal movement and adapted to move in one direction to draw the fluid through the valve assemblies, and into the bore; and to move in the opposite direction to compress the fluid and allow the compressed fluid to pass to the outlet.
2. The compressor of claim 1 wherein the valve assemblies are angularly spaced around the bore.
3. The compressor of claim 1 wherein the axis of each valve assembly extends at an angle to the longitudinal axis of the bore.
4. The compressor of claim 3 wherein the angle is approximately forty-five degrees.
5. The compressor of claim 3 wherein the angle is approximately ninety degrees.
6. The compressor of claim 1 wherein a plurality of angularly-spaced inlet chambers are formed in the at least one head and adapted to receive fluid to be compressed, and wherein the inlet valve assemblies are mounted in the respective inlet chambers.
7. The compressor of claim 6 wherein the chambers are interconnected in the interior of the head permit the fluid to flow from chamber to chamber.
8. The compressor of claim 6 wherein the chambers and therefore the valve assemblies, are angularly spaced around the bore.
9. The compressor of claim 6 wherein the axis of each chamber, and therefore each valve assembly, extends at an angle to the longitudinal axis of the bore.
10. The compressor of claim 9 wherein the angle is approximately forty-five degrees.
11. The compressor of claim 9 wherein the angle is approximately ninety degrees.
12. The compressor of claim 1 wherein the compressed fluid flows through the piston/valve unit before passing to the outlet.
13. The compressor of claim 1 wherein there are two heads respectively mounted at the ends of the housing.
14. The compressor of claim 13 wherein there are two piston/valve units mounted for reciprocal movement in the bore.
15. The compressor of claim 14 wherein the piston/valve units are adapted to move in one direction whereby one piston/valve unit draws the fluid from the corresponding chambers, through its corresponding valve assemblies, and into the bore, and the other piston/valve unit compresses the fluid and allows it to pass to the outlet; and wherein the piston valve units are adapted to move in the other direction whereby the other piston/valve unit draws the fluid from its corresponding chambers, through its corresponding valve assemblies, and into the bore, and whereby the one piston/valve unit compresses the fluid and allows it to pass to the outlet.
16. The compressor of claim 14 further comprising a rod mounted for reciprocal movement in the bore and wherein the piston/valve units are attached to the rod.
17. The compressor of claim 1 wherein the valve assemblies are angularly spaced for 360 degrees around the bore.
18. The compressor of claim 17 wherein there are five valve assemblies equiangularly spaced around the bore.
19. A method of compressing fluid comprising angularly spacing a plurality of inlet valve assemblies around a bore, introducing fluid to be compressed to the valve assemblies, and reciprocating a piston unit in the bore to draw the fluid from the valve assemblies during movement of the piston unit in one direction and compress the fluid during movement of the piston unit in the other direction, the valve assemblies preventing fluid flow from the bore to the valve assemblies during the movement of the piston in the other direction.
20. The method of claim 19 wherein the valve assemblies are angularly spaced around the bore.
21. The method of claim 19 wherein the valve assemblies are angularly spaced for 360 degrees around the bore.
22. The method of claim 21 wherein there are five valve assemblies equiangularly spaced around the bore.
23. The method of claim 19 further comprising providing a head at one end of the bore, forming a plurality of angularly-spaced inlet chambers in the head, introducing the fluid into the chambers, and mounting the valve assemblies in the respective inlet chambers for receiving the fluid.
24. The method of claim 23 further comprising interconnecting the chambers to permit the fluid to flow from chamber to chamber.
25. The method of claim 19 wherein the compressed fluid flows through the piston unit and passes from the bore.
26. The method of claim 19 further comprising providing a head at each end of the bore, forming a plurality of angularly-spaced inlet chambers in each head, introducing the fluid into the chambers, and mounting the valve assemblies in the respective inlet chambers for receiving the fluid.
27. The method of claim 26 further comprising interconnecting the chambers in each head to permit the fluid to flow from chamber to chamber.
28. The method of claim 19 wherein the compressed fluid flows through the piston unit and passes from the bore.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/619,831 US20040018106A1 (en) | 2002-01-14 | 2003-07-15 | Compressor and method with an improved inlet and discharge valve arrangement |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/047,385 US6655935B2 (en) | 2002-01-14 | 2002-01-14 | Gas compressor comprising a double acting piston, an elongate chamber, multiple inlets mounted within heads on both sides of the chamber, and one central outlet |
US10/619,831 US20040018106A1 (en) | 2002-01-14 | 2003-07-15 | Compressor and method with an improved inlet and discharge valve arrangement |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/047,385 Continuation US6655935B2 (en) | 2002-01-14 | 2002-01-14 | Gas compressor comprising a double acting piston, an elongate chamber, multiple inlets mounted within heads on both sides of the chamber, and one central outlet |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040018106A1 true US20040018106A1 (en) | 2004-01-29 |
Family
ID=21948652
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/047,385 Expired - Lifetime US6655935B2 (en) | 2002-01-14 | 2002-01-14 | Gas compressor comprising a double acting piston, an elongate chamber, multiple inlets mounted within heads on both sides of the chamber, and one central outlet |
US10/619,831 Abandoned US20040018106A1 (en) | 2002-01-14 | 2003-07-15 | Compressor and method with an improved inlet and discharge valve arrangement |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/047,385 Expired - Lifetime US6655935B2 (en) | 2002-01-14 | 2002-01-14 | Gas compressor comprising a double acting piston, an elongate chamber, multiple inlets mounted within heads on both sides of the chamber, and one central outlet |
Country Status (2)
Country | Link |
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US (2) | US6655935B2 (en) |
CA (1) | CA2416042C (en) |
Cited By (1)
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US20180180041A1 (en) * | 2014-03-26 | 2018-06-28 | Whirlpool S.A. | Reciprocating Compressor Provided with Arrangement of Suction Valves |
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US7721641B2 (en) | 2004-05-21 | 2010-05-25 | Us Airflow | Air compression apparatus and method of use |
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US8657588B2 (en) * | 2006-11-08 | 2014-02-25 | Us Airflow | Compression apparatus |
US8186976B2 (en) | 2006-11-08 | 2012-05-29 | Us Airflow | Combination compressor and vacuum pump apparatus and method of use |
US8074679B2 (en) * | 2006-12-21 | 2011-12-13 | Gardner Denver, Inc. | Y-type fluid end with replaceable suction module |
JP5356192B2 (en) * | 2009-11-26 | 2013-12-04 | 株式会社前川製作所 | Reciprocating compressor |
US9416789B2 (en) * | 2013-12-02 | 2016-08-16 | Dresser-Rand Company | Valve cover geometry |
CN110073104B (en) * | 2016-12-14 | 2021-07-20 | 豪顿托马森压缩机有限责任公司 | Clamping arrangement for a valve in a reciprocating compressor cylinder |
US20210404454A1 (en) * | 2018-09-24 | 2021-12-30 | Burckhardt Compression Ag | Labyrinth piston compressor |
AT521496B1 (en) * | 2019-02-06 | 2020-02-15 | Hoerbiger Wien Gmbh | Cylinder head for piston compressor |
US11549500B2 (en) * | 2020-11-25 | 2023-01-10 | Gartech, Llc | Double acting fluid end |
US20230032921A1 (en) * | 2021-07-28 | 2023-02-02 | King Power Company, LLC | Carbon Free Compressor Pump System |
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Also Published As
Publication number | Publication date |
---|---|
CA2416042E (en) | 2003-07-14 |
US6655935B2 (en) | 2003-12-02 |
CA2416042A1 (en) | 2003-07-14 |
CA2416042C (en) | 2010-06-29 |
US20030133813A1 (en) | 2003-07-17 |
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