US20120036993A1 - Compressor valve arrangement - Google Patents
Compressor valve arrangement Download PDFInfo
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- US20120036993A1 US20120036993A1 US13/266,211 US201013266211A US2012036993A1 US 20120036993 A1 US20120036993 A1 US 20120036993A1 US 201013266211 A US201013266211 A US 201013266211A US 2012036993 A1 US2012036993 A1 US 2012036993A1
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- Prior art keywords
- valve
- compressor
- cylinder
- valve plate
- axis
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- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/031—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member the hinge being flexible
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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
- F04B39/1066—Valve plates
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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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1037—Flap valves
- F04B53/1047—Flap valves the valve being formed by one or more flexible elements
- F04B53/105—Flap valves the valve being formed by one or more flexible elements one flexible element oscillating around a fixed point
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- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
Definitions
- the subject matter disclosed herein relates to a compressor and in particular to a piston compressor having a skewed or offset valve arrangement.
- Compressors such as a reciprocating or piston compressor 200 for example, typically have a crankcase 202 with a cylinder 204 housing a piston as shown in FIG. 1 .
- the piston is coupled to a motor that moves the piston within the cylinder to draw in and compress a gas.
- a valve plate 206 with a suction port 208 and a discharge port 210 is arranged over one end of the cylinder 204 .
- Each port 208 , 210 includes a valve, such as suction valve 212 for example, that is arranged to be normally closed and only opens when the differential pressure across the valve, in the direction of opening, exceeds a level sufficient to overcome valve stiffness and other forces.
- the suction valve 212 opens into the cylinder 204 as the piston moves away from the valve plate 206 . This draws a gas, such as air for example, from a suction plenum into the cylinder 204 .
- a gas such as air for example
- the piston reverses its motion, moving toward the valve plate 206 , the gas in the cylinder 204 is compressed and the suction valve 212 closes.
- a discharge valve opens, transferring the compressed gas to a discharge plenum.
- the suction valve 212 and discharge valve it is desirable to size the suction valve 212 and discharge valve to maximize the performance of the compressor 200 .
- the size of the valve needs to be offset against other constraints.
- a wall or bulkhead 214 separates the suction plenum from the discharge plenum.
- the bulkhead needs to be of sufficient size to withstand the differential pressure between the plenums and also provide support for the valve plate 206 . This reduces the available area for the valves and valve ports 208 , 210 without interfering with one or more other components.
- the discharge port 210 is moved off the diametral axis 216 as shown in FIG. 2 . This decreases the space available for the discharge port 210 resulting in a port size that is less than desirable for efficient operation of the compressor 200 .
- a compressor is provided.
- the compressor includes a cylinder having a diametral axis.
- a valve plate covers the cylinder, the valve plate having a suction port positioned on the diametral axis and a discharge port.
- a valve is arranged having a first end coupled to valve plate and a second end movable between a first position in contact with the suction port and a second position, wherein the valve is arranged on an angle relative to the diametral axis.
- the compressor includes a cylinder having a diametral axis.
- a valve plate is arranged having a suction port positioned on the diametral axis and a discharge port.
- a valve is arranged having a body with a first end coupled to the valve plate and a second end arranged adjacent the suction port, wherein the valve is arranged on an angle to the diametral axis.
- a piston compressor having a suction plenum and a discharge plenum.
- the compressor includes a cylinder having a diametral axis.
- a valve plate is arranged having a suction port in fluid communication with the suction plenum.
- the valve plate further includes a discharge port in fluid communication with the discharge plenum, wherein the suction port is positioned on the diametral axis.
- a valve having a body is arranged on an angle to the diametral axis, the valve body having a first portion coupled between the crankcase and the valve plate.
- FIG. 1 is a bottom plan view illustration of a prior art valve plate and cylinder bore in a compressor
- FIG. 2 is a bottom plan view illustration of another prior art valve plate having an offset discharge port
- FIG. 3 is a bottom plan view illustration of a valve plate and cylinder bore in a compressor in accordance with an exemplary embodiment of the invention
- FIG. 4 is a side plan view illustration, partially in section, of the compressor of FIG. 1 ;
- FIG. 5 is a side plan view illustration of a portion of the compressor of FIG. 1 ;
- FIG. 6 is another side plan view illustration, partially in section, of the compressor of FIG. 1 ;
- FIG. 7 is a bottom plan view illustration in accordance with another embodiment of the present invention.
- FIG. 8 is a bottom plan view illustration in accordance with another embodiment of the present invention.
- a compressor is a device used in a wide variety of applications to provide a pressurized gas.
- An exemplary embodiment compressor 20 is shown in FIGS. 3-6 .
- the compressor includes a crankcase 22 having a cylinder 24 .
- a piston 26 is arranged within the cylinder 24 and is coupled to a drive (not shown), such as a motor for example.
- the compressor 20 may also include other components (not shown), such as a connecting rod and a crankshaft for example, to connect the piston 26 to the motor.
- the compressor may further include fluid or gas control devices (not shown), such as regulators and valves for example.
- the movement of the piston 26 within the cylinder 24 causes the compression and flow of the desired gas.
- the piston 26 will have one or more components (not shown), such as rings or seals for example, that minimizes or prevents the leakage of compressed gas around the piston 26 .
- valve plate 28 Arranged along one end of the crankcase 22 covering the cylinder 24 is a valve plate 28 .
- the valve plate 28 is typically coupled to the crankcase 22 by a plurality of bolts (not shown).
- the valve plate 28 includes a first surface 29 and a second surface 31 that are substantially parallel.
- a suction port 32 and a discharge port 34 extend through the surfaces 29 , 31 to provide fluid communication to and from the cylinder 24 .
- the suction port 32 is a substantially cylindrical opening having a center axis 39 .
- the discharge port 34 is a substantially cylindrical opening having a center axis 43 . It should be appreciated that while the cylindrical configuration of ports 32 , 34 is advantageous for manufacturing and cost reasons, the ports 32 , 34 may also be configured as other shapes based on the needs of an application or space availability.
- the center axis 39 , 43 are arranged on a diametral axis 33 .
- the diametral axis 33 is the mid-plate or symmetry plane of the axis 37 of cylinder 24 .
- the valve plate 28 further includes a trepan 35 arranged circumferentially around the suction port 32 and discharge port 34 .
- the trepan 35 is an annular cutout that assists in the sealing of the valve to the valve seat, and in the opening of the valve by reducing the effect of the oil stiction (surface tension) force.
- the compressor 20 also includes a valve, such as a suction reed valve 36 .
- the valve 36 includes a body 38 having a longitudinal axis 40 .
- a first end 44 of the body 38 is coupled between the crankcase 22 and the valve plate 28 , such as by a pin 42 for example.
- the body 38 also includes a second end 46 opposite the first end 44 .
- the second end 46 is positioned in a recess 48 in the crankcase 22 .
- the body 38 further includes a seal portion 50 that is sized and shaped to cover the suction port 32 and valve seat in the valve plate 28 .
- the seal portion 50 is generally coaxial with the center axis 39 of suction port 32 .
- the valve 36 is made from a suitable material to allow flexure of the body 38 at desired pressures during operation.
- the valve 36 is rotated about the center axis 39 of the suction port 32 such that the longitudinal axis 40 of valve 36 is on an angle 41 relative to the diametral axis 33 . It should be appreciated that the rotating or skewing of the valve 36 so that the valve 36 is no longer on the diametral axis provides advantages in increasing the amount of space available for the discharge port 34 .
- the discharge port is located on the diametral axis, thereby providing for the most space between the suction port and the discharge port.
- the valve is skewed and the discharge port is not located directly on the diametral axis. These embodiments still provide for additional space between the suction port and the discharge port.
- the crankcase 22 includes a first relief, such as chamfer 52 , formed on the edge of the cylinder 24 adjacent the valve 36 first end 44 .
- a second relief such as chamfer 54 , is formed inside the recess 48 at the edge of cylinder 24 .
- each relief is in the form of a chamfer 52 , 54 , however, other relief shapes that provide support for the valve 36 may also be used, such as a radius for example.
- the chamfers 52 , 54 are substantially perpendicular to the longitudinal axis 40 . As will be discussed in more detail below, the chamfers 52 , 54 provide advantages in supporting and reducing the stresses on the valve 36 when the valve 36 is in an open position.
- a second valve, such as discharge reed valve 56 is mounted to the valve plate 28 on first surface 29 , such as by a bolt 58 for example.
- the discharge valve 56 is similar to the valve 36 in that it is sized and shaped to cover and seal the discharge port 34 .
- the discharge valve 56 is made from a suitable material to allow flexure of the discharge valve 56 at desired pressures during operation.
- the valve plate 28 is supported by a bulkhead or wall 60 that is coupled between the valve plate 28 and an end housing 62 .
- the wall 60 provides support to the valve plate 28 against the high-pressure gas in the cylinder 24 during operation.
- the wall 60 further separates a suction plenum 64 from a discharge plenum 66 and is sized to withstand the pressure differential between the plenums 64 , 66 .
- the wall 60 is substantially parallel to a second diametral axis 68 of cylinder 24 .
- the diametral axis 68 is substantially perpendicular to the first diametral axis 33 .
- the piston 26 moves linearly within the cylinder 24 .
- the valve 36 bends in reaction to this decrease in pressure causing the seal portion 50 to move away from the suction port 32 .
- the valve 36 continues to bend from the first or initial position 70 until the second end 46 contacts the second chamfer 54 at a second or open position 72 ( FIG. 4 ).
- the chamfers 52 , 54 provide advantages in reducing the stress on the valve 36 when in the open position 72 .
- the chamfers 52 , 54 provide a surface to support the valve 36 rather than a sharp edge.
- chamfers 52 , 54 are substantially perpendicular to the longitudinal axis 40 , twisting of the valve 36 is minimized or eliminated.
- the chamfers 52 , 54 improve the support of the valve 36 in the skewed position from the diametral axis 33 , thus allowing more space for the discharge port 34 while also providing the level of support for the valve 36 that is comparable or improved over valves that are aligned on the diametral axis.
- FIG. 7 Another embodiment compressor 80 is illustrated in FIG. 7 .
- a crankcase 90 includes a cylinder 91 with a valve plate 92 arranged on one end.
- the suction port 82 is positioned on a diametral axis 84 .
- a valve 86 is arranged with a first end 88 mounted between the crankcase 90 and the valve plate 92 above a chamfer 89 in the crankcase 90 .
- the valve 86 also includes a second end 94 arranged above a relief or chamfer 96 in the crankcase 90 .
- a seal portion 98 covers the suction port 82 when the valve 86 is in the closed position.
- a longitudinal axis 100 extends the length of the valve 86 .
- the valve 86 is rotated about the center 87 of suction port 82 such that the longitudinal axis 100 is on an angle 110 relative to the diametral axis 84 .
- the discharge port 102 is arranged in the valve plate 92 on the opposite side of a bulkhead wall 104 from the suction port 82 .
- the wall 104 is substantially perpendicular to the diametral axis 84 .
- the discharge port 102 is offset from the diametral axis by a distance 106 .
- the offset distance 106 is arranged to maximize the diameter of the discharge port 102 without the trepan 108 interfering with the wall 104 .
- This embodiment also provides the advantage in that the angle 110 between the diametral axis 84 and the longitudinal axis 100 is reduced while allowing the discharge port 102 to be appropriately sized.
- FIG. 8 Yet another embodiment compressor 120 is illustrated in FIG. 8 .
- a crankcase 122 includes a cylinder 124 .
- a valve plate 126 having a suction port 128 and a discharge port 130 is mounted to one end of the crankcase 122 .
- the suction port 128 is positioned on the diametral axis 132 on one side of a bulkhead wall 134 .
- a valve 136 having a first end 138 is mounted between the crankcase 122 and the valve plate 126 above a relief or chamfer 140 in the crankcase 122 .
- a valve 136 second end 142 is arranged above a second relief or chamfer 144 .
- a seal portion 146 covers the suction port 128 when the valve 136 is in the closed position. Similar to the embodiments above, the valve 136 is rotated about the center 148 of the suction port 128 such that a longitudinal axis 150 is on an angle 152 relative to the diametral axis 132 .
- the discharge port 130 is arranged on a side of the wall 134 opposite the suction port 128 .
- the discharge port 130 is offset a distance 154 from the diametral axis 132 .
- An axis 156 is defined between the center 158 of the discharge port 130 and the center 148 of the suction port 128 .
- the wall 134 is arranged substantially perpendicular to the axis 156 . This provides an advantage by allowing the offset distance 154 for discharge port 130 to be increased without the discharge trepan 160 interfering with the wall 134 . As a result, the angle 152 of the valve 136 may be further reduced.
- the rotation of the wall 134 may also have additional advantages by creating additional space to increase the thickness of the wall 134 . As a result, higher differential pressures may be achieved between the suction plenum and the discharge plenum.
- some embodiments of the invention may include some of the following advantages: an ability to utilize a larger discharge port; improved support for a valve; more efficient operation of the compressor; and an increased bulkhead wall thickness allowing for higher differential pressures during operation.
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Abstract
Description
- The subject matter disclosed herein relates to a compressor and in particular to a piston compressor having a skewed or offset valve arrangement.
- Compressors, such as a reciprocating or
piston compressor 200 for example, typically have acrankcase 202 with acylinder 204 housing a piston as shown inFIG. 1 . The piston is coupled to a motor that moves the piston within the cylinder to draw in and compress a gas. Avalve plate 206 with asuction port 208 and adischarge port 210 is arranged over one end of thecylinder 204. Eachport cylinder 204 as the piston moves away from thevalve plate 206. This draws a gas, such as air for example, from a suction plenum into thecylinder 204. When the piston reverses its motion, moving toward thevalve plate 206, the gas in thecylinder 204 is compressed and the suction valve 212 closes. Once the cylinder pressure has surpassed the discharge pressure by a sufficient differential, a discharge valve opens, transferring the compressed gas to a discharge plenum. - It is desirable to size the suction valve 212 and discharge valve to maximize the performance of the
compressor 200. However, the size of the valve needs to be offset against other constraints. For example, a wall orbulkhead 214 separates the suction plenum from the discharge plenum. The bulkhead needs to be of sufficient size to withstand the differential pressure between the plenums and also provide support for thevalve plate 206. This reduces the available area for the valves andvalve ports diametral axis 216 of the cylinder to provide symmetric support for the ends of the valve 212. To avoid covering thedischarge port 210 with the suction valve 212, thedischarge port 210 is moved off thediametral axis 216 as shown inFIG. 2 . This decreases the space available for thedischarge port 210 resulting in a port size that is less than desirable for efficient operation of thecompressor 200. - According to one aspect of the invention, a compressor is provided. The compressor includes a cylinder having a diametral axis. A valve plate covers the cylinder, the valve plate having a suction port positioned on the diametral axis and a discharge port. A valve is arranged having a first end coupled to valve plate and a second end movable between a first position in contact with the suction port and a second position, wherein the valve is arranged on an angle relative to the diametral axis.
- According to another aspect of the invention, another compressor is provided. The compressor includes a cylinder having a diametral axis. A valve plate is arranged having a suction port positioned on the diametral axis and a discharge port. A valve is arranged having a body with a first end coupled to the valve plate and a second end arranged adjacent the suction port, wherein the valve is arranged on an angle to the diametral axis.
- According to yet another aspect of the invention, a piston compressor is provided having a suction plenum and a discharge plenum. The compressor includes a cylinder having a diametral axis. A valve plate is arranged having a suction port in fluid communication with the suction plenum. The valve plate further includes a discharge port in fluid communication with the discharge plenum, wherein the suction port is positioned on the diametral axis. A valve having a body is arranged on an angle to the diametral axis, the valve body having a first portion coupled between the crankcase and the valve plate.
- These and other advantages and features will become more apparent from the following description taken in conjunction with the drawings.
- The subject matter, which is regarded as the invention, is particularly pointed out and distinctly claimed in the claims at the conclusion of the specification. The foregoing and other features, and advantages of the invention are apparent from the following detailed description taken in conjunction with the accompanying drawings in which:
-
FIG. 1 is a bottom plan view illustration of a prior art valve plate and cylinder bore in a compressor; -
FIG. 2 is a bottom plan view illustration of another prior art valve plate having an offset discharge port; -
FIG. 3 is a bottom plan view illustration of a valve plate and cylinder bore in a compressor in accordance with an exemplary embodiment of the invention; -
FIG. 4 is a side plan view illustration, partially in section, of the compressor ofFIG. 1 ; -
FIG. 5 is a side plan view illustration of a portion of the compressor ofFIG. 1 ; -
FIG. 6 is another side plan view illustration, partially in section, of the compressor ofFIG. 1 ; -
FIG. 7 is a bottom plan view illustration in accordance with another embodiment of the present invention; and, -
FIG. 8 is a bottom plan view illustration in accordance with another embodiment of the present invention. - The detailed description explains embodiments of the invention, together with advantages and features, by way of example with reference to the drawings.
- A compressor is a device used in a wide variety of applications to provide a pressurized gas. An
exemplary embodiment compressor 20 is shown inFIGS. 3-6 . The compressor includes acrankcase 22 having acylinder 24. Apiston 26 is arranged within thecylinder 24 and is coupled to a drive (not shown), such as a motor for example. Typically, thecompressor 20 may also include other components (not shown), such as a connecting rod and a crankshaft for example, to connect thepiston 26 to the motor. The compressor may further include fluid or gas control devices (not shown), such as regulators and valves for example. As will be discussed in more detail herein, the movement of thepiston 26 within thecylinder 24 causes the compression and flow of the desired gas. Thepiston 26 will have one or more components (not shown), such as rings or seals for example, that minimizes or prevents the leakage of compressed gas around thepiston 26. - Arranged along one end of the
crankcase 22 covering thecylinder 24 is avalve plate 28. Thevalve plate 28 is typically coupled to thecrankcase 22 by a plurality of bolts (not shown). Thevalve plate 28 includes afirst surface 29 and asecond surface 31 that are substantially parallel. Asuction port 32 and adischarge port 34 extend through thesurfaces cylinder 24. In the exemplary embodiment, thesuction port 32 is a substantially cylindrical opening having acenter axis 39. Similarly, thedischarge port 34 is a substantially cylindrical opening having acenter axis 43. It should be appreciated that while the cylindrical configuration ofports ports - In the exemplary embodiment, the
center axis diametral axis 33. Thediametral axis 33 is the mid-plate or symmetry plane of theaxis 37 ofcylinder 24. Thevalve plate 28 further includes atrepan 35 arranged circumferentially around thesuction port 32 anddischarge port 34. Thetrepan 35 is an annular cutout that assists in the sealing of the valve to the valve seat, and in the opening of the valve by reducing the effect of the oil stiction (surface tension) force. - Arranged between the
valve plate 28 and the crank case is aseal 30 to prevent the leakage of gas from thecylinder 24. Thecompressor 20 also includes a valve, such as asuction reed valve 36. Thevalve 36 includes abody 38 having alongitudinal axis 40. Afirst end 44 of thebody 38 is coupled between thecrankcase 22 and thevalve plate 28, such as by apin 42 for example. Thebody 38 also includes asecond end 46 opposite thefirst end 44. Thesecond end 46 is positioned in arecess 48 in thecrankcase 22. Thebody 38 further includes aseal portion 50 that is sized and shaped to cover thesuction port 32 and valve seat in thevalve plate 28. Theseal portion 50 is generally coaxial with thecenter axis 39 ofsuction port 32. Thevalve 36 is made from a suitable material to allow flexure of thebody 38 at desired pressures during operation. - The
valve 36 is rotated about thecenter axis 39 of thesuction port 32 such that thelongitudinal axis 40 ofvalve 36 is on an angle 41 relative to thediametral axis 33. It should be appreciated that the rotating or skewing of thevalve 36 so that thevalve 36 is no longer on the diametral axis provides advantages in increasing the amount of space available for thedischarge port 34. In one embodiment, the discharge port is located on the diametral axis, thereby providing for the most space between the suction port and the discharge port. In other embodiments, the valve is skewed and the discharge port is not located directly on the diametral axis. These embodiments still provide for additional space between the suction port and the discharge port. - The
crankcase 22 includes a first relief, such aschamfer 52, formed on the edge of thecylinder 24 adjacent thevalve 36first end 44. A second relief, such aschamfer 54, is formed inside therecess 48 at the edge ofcylinder 24. In the exemplary embodiment, each relief is in the form of achamfer valve 36 may also be used, such as a radius for example. In one embodiment, thechamfers longitudinal axis 40. As will be discussed in more detail below, thechamfers valve 36 when thevalve 36 is in an open position. - A second valve, such as
discharge reed valve 56 is mounted to thevalve plate 28 onfirst surface 29, such as by abolt 58 for example. Thedischarge valve 56 is similar to thevalve 36 in that it is sized and shaped to cover and seal thedischarge port 34. Thedischarge valve 56 is made from a suitable material to allow flexure of thedischarge valve 56 at desired pressures during operation. - The
valve plate 28 is supported by a bulkhead orwall 60 that is coupled between thevalve plate 28 and anend housing 62. Thewall 60 provides support to thevalve plate 28 against the high-pressure gas in thecylinder 24 during operation. Thewall 60 further separates asuction plenum 64 from adischarge plenum 66 and is sized to withstand the pressure differential between theplenums wall 60 is substantially parallel to a seconddiametral axis 68 ofcylinder 24. Thediametral axis 68 is substantially perpendicular to the firstdiametral axis 33. - During operation, the
piston 26 moves linearly within thecylinder 24. As thepiston 26 moves away from thevalve plate 28 causing a decrease in pressure in thecylinder 24, thevalve 36 bends in reaction to this decrease in pressure causing theseal portion 50 to move away from thesuction port 32. Thevalve 36 continues to bend from the first orinitial position 70 until thesecond end 46 contacts thesecond chamfer 54 at a second or open position 72 (FIG. 4 ). Thechamfers valve 36 when in theopen position 72. Thechamfers valve 36 rather than a sharp edge. Further, since thechamfers longitudinal axis 40, twisting of thevalve 36 is minimized or eliminated. Thechamfers valve 36 in the skewed position from thediametral axis 33, thus allowing more space for thedischarge port 34 while also providing the level of support for thevalve 36 that is comparable or improved over valves that are aligned on the diametral axis. - As the
seal portion 50 disengages from thesuction port 32 and valve seat, gas from the suction plenum may flow into thecylinder 24. Thepiston 26 will eventually reverse motion and move towards thevalve plate 28 causing thevalve 36 to return to theinitial position 70. As volume of thecylinder 24 decreases, the pressure of the gas in thecylinder 24 increases until the discharge reed valve bends, opening thedischarge port 34 to allow pressurized gas to flow into thedischarge plenum 66. - Another
embodiment compressor 80 is illustrated inFIG. 7 . Similar to the embodiment described above, acrankcase 90 includes acylinder 91 with avalve plate 92 arranged on one end. In this embodiment, thesuction port 82 is positioned on adiametral axis 84. Avalve 86 is arranged with afirst end 88 mounted between thecrankcase 90 and thevalve plate 92 above achamfer 89 in thecrankcase 90. Thevalve 86 also includes asecond end 94 arranged above a relief orchamfer 96 in thecrankcase 90. Aseal portion 98 covers thesuction port 82 when thevalve 86 is in the closed position. Alongitudinal axis 100 extends the length of thevalve 86. Thevalve 86 is rotated about thecenter 87 ofsuction port 82 such that thelongitudinal axis 100 is on an angle 110 relative to thediametral axis 84. - The
discharge port 102 is arranged in thevalve plate 92 on the opposite side of abulkhead wall 104 from thesuction port 82. Thewall 104 is substantially perpendicular to thediametral axis 84. In this embodiment, thedischarge port 102 is offset from the diametral axis by adistance 106. In one embodiment, the offsetdistance 106 is arranged to maximize the diameter of thedischarge port 102 without thetrepan 108 interfering with thewall 104. This embodiment also provides the advantage in that the angle 110 between thediametral axis 84 and thelongitudinal axis 100 is reduced while allowing thedischarge port 102 to be appropriately sized. - Yet another
embodiment compressor 120 is illustrated inFIG. 8 . Similar to the embodiments described above, acrankcase 122 includes acylinder 124. Avalve plate 126 having a suction port 128 and adischarge port 130 is mounted to one end of thecrankcase 122. The suction port 128 is positioned on thediametral axis 132 on one side of abulkhead wall 134. Avalve 136 having afirst end 138 is mounted between thecrankcase 122 and thevalve plate 126 above a relief orchamfer 140 in thecrankcase 122. Avalve 136second end 142 is arranged above a second relief orchamfer 144. Aseal portion 146 covers the suction port 128 when thevalve 136 is in the closed position. Similar to the embodiments above, thevalve 136 is rotated about thecenter 148 of the suction port 128 such that alongitudinal axis 150 is on anangle 152 relative to thediametral axis 132. - The
discharge port 130 is arranged on a side of thewall 134 opposite the suction port 128. Thedischarge port 130 is offset adistance 154 from thediametral axis 132. Anaxis 156 is defined between thecenter 158 of thedischarge port 130 and thecenter 148 of the suction port 128. In this embodiment, thewall 134 is arranged substantially perpendicular to theaxis 156. This provides an advantage by allowing the offsetdistance 154 fordischarge port 130 to be increased without thedischarge trepan 160 interfering with thewall 134. As a result, theangle 152 of thevalve 136 may be further reduced. In some embodiments, the rotation of thewall 134 may also have additional advantages by creating additional space to increase the thickness of thewall 134. As a result, higher differential pressures may be achieved between the suction plenum and the discharge plenum. - As disclosed, some embodiments of the invention may include some of the following advantages: an ability to utilize a larger discharge port; improved support for a valve; more efficient operation of the compressor; and an increased bulkhead wall thickness allowing for higher differential pressures during operation.
- While the invention has been described in detail in connection with only a limited number of embodiments, it should be readily understood that the invention is not limited to such disclosed embodiments. Rather, the invention can be modified to incorporate any number of variations, alterations, substitutions or equivalent arrangements not heretofore described, but which are commensurate with the spirit and scope of the invention. Additionally, while various embodiments of the invention have been described, it is to be understood that aspects of the invention may include only some of the described embodiments. Accordingly, the invention is not to be seen as limited by the foregoing description, but is only limited by the scope of the appended claims.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US13/266,211 US20120036993A1 (en) | 2009-04-27 | 2010-03-18 | Compressor valve arrangement |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US17294709P | 2009-04-27 | 2009-04-27 | |
US13/266,211 US20120036993A1 (en) | 2009-04-27 | 2010-03-18 | Compressor valve arrangement |
PCT/US2010/027818 WO2010129098A2 (en) | 2009-04-27 | 2010-03-18 | Compressor valve arrangement |
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Publication Number | Publication Date |
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US20120036993A1 true US20120036993A1 (en) | 2012-02-16 |
Family
ID=43050687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/266,211 Abandoned US20120036993A1 (en) | 2009-04-27 | 2010-03-18 | Compressor valve arrangement |
Country Status (5)
Country | Link |
---|---|
US (1) | US20120036993A1 (en) |
EP (1) | EP2425134B1 (en) |
CN (1) | CN102414446B (en) |
DK (1) | DK2425134T3 (en) |
WO (1) | WO2010129098A2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10208740B2 (en) | 2012-09-04 | 2019-02-19 | Carrier Corporation | Reciprocating refrigeration compressor suction valve seating |
US20220282796A1 (en) * | 2021-03-05 | 2022-09-08 | Mann+Hummel Gmbh | Valve Unit, Filter Head for a Valve Unit, and Filter System |
US20220341408A1 (en) * | 2021-04-21 | 2022-10-27 | Wen-San Chou | Piston of Cylinder of Air Compressor |
US20230048353A1 (en) * | 2021-08-12 | 2023-02-16 | Zf Cv Systems Europe Bv | Air compressor with ramped head deck |
Citations (3)
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US5213125A (en) * | 1992-05-28 | 1993-05-25 | Thomas Industries Inc. | Valve plate with a recessed valve assembly |
US20010047718A1 (en) * | 2000-03-31 | 2001-12-06 | Murdoch Robert W. | Piston assembly for reducing the temperature of a compressor cup seal |
US6565336B1 (en) * | 1998-05-06 | 2003-05-20 | Carrier Corporation | Normally unseated suction valve |
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GB891313A (en) * | 1959-07-29 | 1962-03-14 | Bosch Gmbh Robert | Improvements in or relating to a cylinder block of a pump embodying a vibratory valve assembly |
US5228468A (en) * | 1992-06-04 | 1993-07-20 | Ingersoll-Rand Company | Valve and valve seat for flat valve and method of making same |
KR0129804Y1 (en) * | 1992-09-11 | 1999-03-30 | 가나이 츠토무 | Hermetic compressor |
KR100197711B1 (en) * | 1996-11-08 | 1999-06-15 | 윤종용 | Valve assembly for a compressor |
KR100368843B1 (en) * | 1999-06-24 | 2003-01-24 | 삼성광주전자 주식회사 | valve apparatus for compressor |
KR200255957Y1 (en) * | 2001-08-29 | 2001-12-13 | 유신산업 (주) | intake and exhaust valve structure of air compressor |
US20060280617A1 (en) * | 2003-09-30 | 2006-12-14 | Katsumi Uehara | Compressor and suction valve structure |
BR0306180B1 (en) * | 2003-12-23 | 2013-01-22 | discharge system for compressors. | |
DE102006016253B4 (en) * | 2006-03-31 | 2018-03-01 | Secop Gmbh | Valve plate for a reciprocating compressor |
-
2010
- 2010-03-18 US US13/266,211 patent/US20120036993A1/en not_active Abandoned
- 2010-03-18 DK DK10772416.3T patent/DK2425134T3/en active
- 2010-03-18 WO PCT/US2010/027818 patent/WO2010129098A2/en active Application Filing
- 2010-03-18 CN CN201080018589.8A patent/CN102414446B/en active Active
- 2010-03-18 EP EP10772416.3A patent/EP2425134B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5213125A (en) * | 1992-05-28 | 1993-05-25 | Thomas Industries Inc. | Valve plate with a recessed valve assembly |
US6565336B1 (en) * | 1998-05-06 | 2003-05-20 | Carrier Corporation | Normally unseated suction valve |
US20010047718A1 (en) * | 2000-03-31 | 2001-12-06 | Murdoch Robert W. | Piston assembly for reducing the temperature of a compressor cup seal |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10208740B2 (en) | 2012-09-04 | 2019-02-19 | Carrier Corporation | Reciprocating refrigeration compressor suction valve seating |
US20220282796A1 (en) * | 2021-03-05 | 2022-09-08 | Mann+Hummel Gmbh | Valve Unit, Filter Head for a Valve Unit, and Filter System |
US11649904B2 (en) * | 2021-03-05 | 2023-05-16 | Mann+Hummel Gmbh | Valve unit, filter head for a valve unit, and filter system |
US20220341408A1 (en) * | 2021-04-21 | 2022-10-27 | Wen-San Chou | Piston of Cylinder of Air Compressor |
US11815080B2 (en) * | 2021-04-21 | 2023-11-14 | Wen-San Chou | Piston of cylinder of air compressor |
US20230048353A1 (en) * | 2021-08-12 | 2023-02-16 | Zf Cv Systems Europe Bv | Air compressor with ramped head deck |
US11971026B2 (en) * | 2021-08-12 | 2024-04-30 | Zf Cv Systems Europe Bv | Air compressor with ramped head deck |
Also Published As
Publication number | Publication date |
---|---|
WO2010129098A3 (en) | 2011-01-13 |
DK2425134T3 (en) | 2019-07-15 |
WO2010129098A2 (en) | 2010-11-11 |
EP2425134A2 (en) | 2012-03-07 |
EP2425134A4 (en) | 2015-08-05 |
EP2425134B1 (en) | 2019-06-05 |
CN102414446B (en) | 2015-10-07 |
CN102414446A (en) | 2012-04-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CARRIER CORPORATION, CONNECTICUT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NIETER, JEFFREY J.;REEL/FRAME:027117/0562 Effective date: 20090428 |
|
AS | Assignment |
Owner name: CARRIER CORPORATION, CONNECTICUT Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE ZIP CODE OF THE ASSIGNEE FROM 06103 TO 06034 PREVIOUSLY RECORDED ON REEL 027117 FRAME 0562. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNOR:NIETER, JEFFREY J.;REEL/FRAME:027181/0174 Effective date: 20090428 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |