CA1185874A - High speed - high flow spool valve - Google Patents
High speed - high flow spool valveInfo
- Publication number
- CA1185874A CA1185874A CA000409214A CA409214A CA1185874A CA 1185874 A CA1185874 A CA 1185874A CA 000409214 A CA000409214 A CA 000409214A CA 409214 A CA409214 A CA 409214A CA 1185874 A CA1185874 A CA 1185874A
- Authority
- CA
- Canada
- Prior art keywords
- valve means
- valve
- pressure fluid
- slot
- passage
- 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
Links
Classifications
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0668—Sliding valves
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0648—One-way valve the armature and the valve member forming one element
Abstract
HIGH SPEED - HIGH FLOW SPOOL VALVE
ABSTRACT OF THE DISCLOSURE
An ultra fast-acting shut-off valve utilizing a slotted spool in registry with a slotted sleeve which provides full opening with an extremely short valve throw. The valve may be operated by any suitable actuator. An electric solenoid is provided in the preferred embodiment described, making it compatible with electronic micro-processor control systems.
ABSTRACT OF THE DISCLOSURE
An ultra fast-acting shut-off valve utilizing a slotted spool in registry with a slotted sleeve which provides full opening with an extremely short valve throw. The valve may be operated by any suitable actuator. An electric solenoid is provided in the preferred embodiment described, making it compatible with electronic micro-processor control systems.
Description
For many control applications, a high speed -high flow valve is essential. Several attempts have been made to increase valve response time by utilizing smaller and lighter valve actuators. The majority of these attempts have resulted in restricted flow in the full open position and erratic and unreliable valve operation in other instances. It is desirable to have a valve with as fast a response time as possible for commercial applications such as fastener torque or tension control. It is also desirable to have a valve which, in addition to having fast response time, has high flow capabilities in its open position and a short throw to a closed position.
SUGARY OF THE INVENTION
The object of this invention is to provide a fast-acting, high flow valve having extremely fast response time. Another object of the invention is to provide a valve with high flow capabilities and an extremely short throw from its open to closed position. The valve of this invention is suitable for use as a torque control device or similar services requiring a rapid response. The principal features of the invention include minimum internal components which are easily 1 and economically manufactured and which are readily replaced.
The object of the invention is to provide a fast-acting, high flow valve having a slotted spool member in registry with a slotted sleeve member wherein control is effected by registry of the slots in the spool and sleeve members. It is a further object of the invention to provide slots in both the spool and sleeve members which have a substantial length to width ratio wherein a small amount of movement is required to effect full registry and full interference of the slots. It is a further object of this invention to effect registry by linear axial displacement of the spool in one embodiment and by rotary displacement of the spool in a second em-bodiment.
It is yet a further object of the invention toprovic.~ a construction alternative which readily changes the valve from a normally open to a normally closed configuration. It is yet a further object to provide a fast-acting, high flow valve which is open-axed by a linear or rotary actuator such as an electric solenoid.
These and other objects are obtained in a valve which interrupts the flow of pressure fluid comprising:
a valve body having a central bore, a pressure fluid inlet entering the bore a pressure fluid outlet from the bore, a first valve means disposed in the bore and having multiple slots disposed between the pressure fluid inlet and the pressure fluid outlet. A second valve means is provided and has similarly oriented multiple slots disposed intermediate the pressure fluid inlet and the pressure fluid outlet The second valve means is in contact with, and movable relative to, the first valve means to effect alternately registry and interference of the similarly oriented slots in each means to effect opening and closing of the valve. The central bore is a circular bore having an axis perpendi-cuter to the flow of pressure fluid. The first valve means is a cylindrical sleeve inserted with close fit in the central bore. The second valve means is a hollow cylindrical plug inserted in the first valve means and having its outside diameter in close-sliding fit with the inside diameter of the second valve means.
The first valve means and the second valve means each have a passage means from the pressure fluid inlet.
The passage means in the first valve means and the passage means in the second valve means cocci to allow essentially full flow of pressure fluid into the interior of the second valve means. The first valve means and the second valve means are each provided with a multiple narrow slot exit passage. The multiple narrow slot exit passage has a combined area to permit essentially full flow of the pressure fluid from the interior of the second valve means to the outlet when the multiple narrow slot exit passages in the first valve means and the multiple narrow slot exit passages in the second valve means are in register, and to pressure seal and prevent flow of pressure fluid from the interior of the first valve means to the outlet when the slot means are out of register, and where so full registry is accomplished by movement of the width of one narrow slot. Displacement means is provided to effect registry of the slot means.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a sectioned side elevation view of a valve according to this invention. Figure 2 is a partial section and elevation view of a valve according to this invention Figure 3 is a section of the valve taken along line 3-3 of Figure 1, showing a plan view of the control slots. Figure 4 shows a partial side elevation of an alternative embodiment of the present invention for use with a rotary actuator.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The operation description of the invention in lo the form of the preferred embodiment shown in the drawings -pa-. ., 1 may best be understood by referring to Figure 1 for general assembly and for operation of the related parts.
The valve generally shown by reference numeral 1 in Figure 1, has a valve body 2 which is provided with a central bore 5 into which is inserted a cylindrical sleeve 3 and which in turn receives a cylindrical valve spool 4 in concentric close-fitting internal registry.
A solenoid operator 7 is connected to the valve body 2 and sleeve 3 by means of a threaded concentric adaptor 9. The threaded concentric adaptor 9 is at-lacked to the sleeve 3 by means of thread 11 and is centralized in the central bore 5 of the valve body 2 by means of flange 8. Spacing washers 12 control the clearance between the solenoid 7 and the sleeve 3. The operating core 13 of the solenoid 7 pushes against an end plug 14 of the valve spool 4. A return spring 23 rushes against the valve Spool 4 in the opus direction. A guide pin 25 inserted through the valve spool 4 and its end plug 14 retains the end plug 14 in I the valve spool 4 and further projects beyond the valve spool 4 into a slot in the sleeve 3 to provide a linear guide for the valve spool 4.
The solenoid 7 is provided with a top protective cap 6 and is operated by the electrical connectors lo I which enter the valve body 2 and pus into its central or 1 bore 5 and when to the solenoid 7.
An inlet I is provided to the valve body 2. The valve Cody 2 is also provided with an outlet 30 on the opposite side of the valve body 2. Intermediate to inlet 20 and outlet 30 are the sleeve 3 and the valve spool 4. A large wide slot 15 is provided in the valve spool 4 towards the inlet 20. A corresponding wide slot 15' is provided in the sleeve 3 towards the inlet 20. As can be seen in Figure 1, this will allow pressure fluid entering the inlet to pass into the center of the valve spool 4. The inlet slot I is of such width that the normal throw of the valve wit not close the inlet slot.
The valve spool 4 is provided with corresponding multiple horizontal slots 16 on the outlet side of the valve which form a grill-like structure. On the outlet side of the valve, the sleeve 3 is also provided with multiple horizontal slots 16' which form a mating grill-like structure. The slots in both the sleeve 3 and the I valve spool 4 are shown in registry for full flow through these slots in the valve open position. As shown in Figure 1, the solid part of the grid on the sleeve 3 may be slightly wider than the slot portion of the grid on the valve spool 4 to eliminate line-to-line contact of the grid as it is displaced.
I
1 It can be appreciated by one skilled in the art that displacement of the valve spool 4 by the width of the horizontal slot 16 in the valve spool 4 in the Yen-tidal direction will cause the valve to go from full open to full close. The amount of throw required to operate the valve, therefore, is controlled primarily by the physical limitations of slot width and structural n-gidity of the slot. The throw, therefore, can be made very small. It should also be noted that there is sub-staunchly flow area in the open position.
In the construction of the valve, numerous con-struction details are shown such as the bottom vent 28 and top cap vent 29 which are required to dissipate leakage of the valve but do not form an essential part of the invention. Likewise, a face seal 31 and an O-ring seal 32 are provided to minimize bypass leakage from the inlet 20 to the atmosphere. A screw 26 is shown as a means for adjusting tolerance makeup between the valve spool and the solenoid core 13. Other suitable means may be employed to perform this function.
One important feature of the invention is the pro-vision of spacer 21 which, upon removal, converts the valve from a normally open valve when energized to a normally closed valve when energized. This is a useful and simple say of converting the valve to various uses.
By 1 A split ring 22 is shown as the bottom land for limiting downward travel of the valve spool 4. A retaining pin 33 retains the sleeve 3 in the valve body 2.
Figure 2 shows the placement of the valve spool in the de-energized or closed position of the valve and provides an end view of the valve for further under-standing of its construction.
Figure 3 shows the orientation of the valve inlet and outlet in relation to the sleeve and spool slots in a plan view.
Having described the invention, numerous mod-fixations of the details of construction will occur to one skilled in the art. For example, in Figure 4 the slot orientation for a rotary actuated version of the valve is indicated. In this case the valve spool would be rotated about its axis by a rotary actuator approx-isle the width of the slot to effect opening or closing of the valve.
Applicants do not wish to be limited in the scope ox the invention except as claimed.
SUGARY OF THE INVENTION
The object of this invention is to provide a fast-acting, high flow valve having extremely fast response time. Another object of the invention is to provide a valve with high flow capabilities and an extremely short throw from its open to closed position. The valve of this invention is suitable for use as a torque control device or similar services requiring a rapid response. The principal features of the invention include minimum internal components which are easily 1 and economically manufactured and which are readily replaced.
The object of the invention is to provide a fast-acting, high flow valve having a slotted spool member in registry with a slotted sleeve member wherein control is effected by registry of the slots in the spool and sleeve members. It is a further object of the invention to provide slots in both the spool and sleeve members which have a substantial length to width ratio wherein a small amount of movement is required to effect full registry and full interference of the slots. It is a further object of this invention to effect registry by linear axial displacement of the spool in one embodiment and by rotary displacement of the spool in a second em-bodiment.
It is yet a further object of the invention toprovic.~ a construction alternative which readily changes the valve from a normally open to a normally closed configuration. It is yet a further object to provide a fast-acting, high flow valve which is open-axed by a linear or rotary actuator such as an electric solenoid.
These and other objects are obtained in a valve which interrupts the flow of pressure fluid comprising:
a valve body having a central bore, a pressure fluid inlet entering the bore a pressure fluid outlet from the bore, a first valve means disposed in the bore and having multiple slots disposed between the pressure fluid inlet and the pressure fluid outlet. A second valve means is provided and has similarly oriented multiple slots disposed intermediate the pressure fluid inlet and the pressure fluid outlet The second valve means is in contact with, and movable relative to, the first valve means to effect alternately registry and interference of the similarly oriented slots in each means to effect opening and closing of the valve. The central bore is a circular bore having an axis perpendi-cuter to the flow of pressure fluid. The first valve means is a cylindrical sleeve inserted with close fit in the central bore. The second valve means is a hollow cylindrical plug inserted in the first valve means and having its outside diameter in close-sliding fit with the inside diameter of the second valve means.
The first valve means and the second valve means each have a passage means from the pressure fluid inlet.
The passage means in the first valve means and the passage means in the second valve means cocci to allow essentially full flow of pressure fluid into the interior of the second valve means. The first valve means and the second valve means are each provided with a multiple narrow slot exit passage. The multiple narrow slot exit passage has a combined area to permit essentially full flow of the pressure fluid from the interior of the second valve means to the outlet when the multiple narrow slot exit passages in the first valve means and the multiple narrow slot exit passages in the second valve means are in register, and to pressure seal and prevent flow of pressure fluid from the interior of the first valve means to the outlet when the slot means are out of register, and where so full registry is accomplished by movement of the width of one narrow slot. Displacement means is provided to effect registry of the slot means.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a sectioned side elevation view of a valve according to this invention. Figure 2 is a partial section and elevation view of a valve according to this invention Figure 3 is a section of the valve taken along line 3-3 of Figure 1, showing a plan view of the control slots. Figure 4 shows a partial side elevation of an alternative embodiment of the present invention for use with a rotary actuator.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The operation description of the invention in lo the form of the preferred embodiment shown in the drawings -pa-. ., 1 may best be understood by referring to Figure 1 for general assembly and for operation of the related parts.
The valve generally shown by reference numeral 1 in Figure 1, has a valve body 2 which is provided with a central bore 5 into which is inserted a cylindrical sleeve 3 and which in turn receives a cylindrical valve spool 4 in concentric close-fitting internal registry.
A solenoid operator 7 is connected to the valve body 2 and sleeve 3 by means of a threaded concentric adaptor 9. The threaded concentric adaptor 9 is at-lacked to the sleeve 3 by means of thread 11 and is centralized in the central bore 5 of the valve body 2 by means of flange 8. Spacing washers 12 control the clearance between the solenoid 7 and the sleeve 3. The operating core 13 of the solenoid 7 pushes against an end plug 14 of the valve spool 4. A return spring 23 rushes against the valve Spool 4 in the opus direction. A guide pin 25 inserted through the valve spool 4 and its end plug 14 retains the end plug 14 in I the valve spool 4 and further projects beyond the valve spool 4 into a slot in the sleeve 3 to provide a linear guide for the valve spool 4.
The solenoid 7 is provided with a top protective cap 6 and is operated by the electrical connectors lo I which enter the valve body 2 and pus into its central or 1 bore 5 and when to the solenoid 7.
An inlet I is provided to the valve body 2. The valve Cody 2 is also provided with an outlet 30 on the opposite side of the valve body 2. Intermediate to inlet 20 and outlet 30 are the sleeve 3 and the valve spool 4. A large wide slot 15 is provided in the valve spool 4 towards the inlet 20. A corresponding wide slot 15' is provided in the sleeve 3 towards the inlet 20. As can be seen in Figure 1, this will allow pressure fluid entering the inlet to pass into the center of the valve spool 4. The inlet slot I is of such width that the normal throw of the valve wit not close the inlet slot.
The valve spool 4 is provided with corresponding multiple horizontal slots 16 on the outlet side of the valve which form a grill-like structure. On the outlet side of the valve, the sleeve 3 is also provided with multiple horizontal slots 16' which form a mating grill-like structure. The slots in both the sleeve 3 and the I valve spool 4 are shown in registry for full flow through these slots in the valve open position. As shown in Figure 1, the solid part of the grid on the sleeve 3 may be slightly wider than the slot portion of the grid on the valve spool 4 to eliminate line-to-line contact of the grid as it is displaced.
I
1 It can be appreciated by one skilled in the art that displacement of the valve spool 4 by the width of the horizontal slot 16 in the valve spool 4 in the Yen-tidal direction will cause the valve to go from full open to full close. The amount of throw required to operate the valve, therefore, is controlled primarily by the physical limitations of slot width and structural n-gidity of the slot. The throw, therefore, can be made very small. It should also be noted that there is sub-staunchly flow area in the open position.
In the construction of the valve, numerous con-struction details are shown such as the bottom vent 28 and top cap vent 29 which are required to dissipate leakage of the valve but do not form an essential part of the invention. Likewise, a face seal 31 and an O-ring seal 32 are provided to minimize bypass leakage from the inlet 20 to the atmosphere. A screw 26 is shown as a means for adjusting tolerance makeup between the valve spool and the solenoid core 13. Other suitable means may be employed to perform this function.
One important feature of the invention is the pro-vision of spacer 21 which, upon removal, converts the valve from a normally open valve when energized to a normally closed valve when energized. This is a useful and simple say of converting the valve to various uses.
By 1 A split ring 22 is shown as the bottom land for limiting downward travel of the valve spool 4. A retaining pin 33 retains the sleeve 3 in the valve body 2.
Figure 2 shows the placement of the valve spool in the de-energized or closed position of the valve and provides an end view of the valve for further under-standing of its construction.
Figure 3 shows the orientation of the valve inlet and outlet in relation to the sleeve and spool slots in a plan view.
Having described the invention, numerous mod-fixations of the details of construction will occur to one skilled in the art. For example, in Figure 4 the slot orientation for a rotary actuated version of the valve is indicated. In this case the valve spool would be rotated about its axis by a rotary actuator approx-isle the width of the slot to effect opening or closing of the valve.
Applicants do not wish to be limited in the scope ox the invention except as claimed.
Claims (6)
1. A valve which interrupts the flow of pressure fluid comprising:
a valve body having a central bore; a pressure fluid inlet entering said bore; a pressure fluid outlet from said bore; a first valve means disposed in said bore having multiple slots disposed between said pressure fluid inlet and said pressure fluid outlet;
a second valve means having similarly oriented multiple slots disposed intermediate to said pressure fluid inlet and said pressure fluid outlet; said second valve means being in contact with, and movable relative to, said first valve means to effect alternately registry and interference of the similarly oriented slots in each means to effect opening and closing of the valve;
said central bore is a circular bore having an axis perpendicular to the flow of pressure fluid; said first valve means is a cylindrical sleeve inserted with close fit in said central bore;
said second valve means is a hollow cylindrical plug inserted in said first valve means having its out-side diameter in close-sliding fit with the inside diameter of said second valve means;
said first valve means and second valve means each have a passage means from said pressure fluid inlet;
said passage means in said first valve means and said passage means in second valve means coacting to allow essentially full flow of pressure fluid into the interior of the said second valve means; and said first valve means and said second valve means are each provided with a multiple narrow slot exit passage, said multiple narrow slot exit passage having a combined area to permit essentially full flow of pressure fluid from the interior of said second valve means to said outlet when said multiple narrow slot exit passages in said first valve means and said multiple narrow slot exit passages in said second valve means are in register, and to pressure seal and prevent flow of pressure fluid from said interior of said first valve means to said outlet when said slot means are out of register, and where full registry is accomplished by movement of the width of one narrow slot; and displacement means is provided to effect registry of said slot means
a valve body having a central bore; a pressure fluid inlet entering said bore; a pressure fluid outlet from said bore; a first valve means disposed in said bore having multiple slots disposed between said pressure fluid inlet and said pressure fluid outlet;
a second valve means having similarly oriented multiple slots disposed intermediate to said pressure fluid inlet and said pressure fluid outlet; said second valve means being in contact with, and movable relative to, said first valve means to effect alternately registry and interference of the similarly oriented slots in each means to effect opening and closing of the valve;
said central bore is a circular bore having an axis perpendicular to the flow of pressure fluid; said first valve means is a cylindrical sleeve inserted with close fit in said central bore;
said second valve means is a hollow cylindrical plug inserted in said first valve means having its out-side diameter in close-sliding fit with the inside diameter of said second valve means;
said first valve means and second valve means each have a passage means from said pressure fluid inlet;
said passage means in said first valve means and said passage means in second valve means coacting to allow essentially full flow of pressure fluid into the interior of the said second valve means; and said first valve means and said second valve means are each provided with a multiple narrow slot exit passage, said multiple narrow slot exit passage having a combined area to permit essentially full flow of pressure fluid from the interior of said second valve means to said outlet when said multiple narrow slot exit passages in said first valve means and said multiple narrow slot exit passages in said second valve means are in register, and to pressure seal and prevent flow of pressure fluid from said interior of said first valve means to said outlet when said slot means are out of register, and where full registry is accomplished by movement of the width of one narrow slot; and displacement means is provided to effect registry of said slot means
2. The valve according to claim 1 wherein:
said displacement means axially displaces said first valve means and said slot means are narrow slots perpendicular to the axis of said first valve means and said second valve means.
said displacement means axially displaces said first valve means and said slot means are narrow slots perpendicular to the axis of said first valve means and said second valve means.
3. The valve according to claim 1 wherein:
said displacement means rotates said first valve means and said slot means are parallel to said axis of said first valve means.
said displacement means rotates said first valve means and said slot means are parallel to said axis of said first valve means.
4. The valve according to claim 1 wherein:
said central bore is a circular bore having an axis perpendicular to the flow of pressure fluid;
said first valve means is a cylindrical sleeve inserted in said central bore;
said second valve means is a hollow cylindrical plug inserted in said first valve means having its outside diameter in close-sliding fit with the inside diameter of said first valve means;
said first valve means and said second valve means each have a passage means from said pressure fluid inlet, said passage means in said first valve means and said passage means in said second valve means coacting to allow essentially full flow of pressure fluid into the interior of said second valve means;
said first valve means and said second valve means are each provided with a multiple slot passage, said multiple slot passage in each valve means having a combined area to permit essentially full flow of pressure fluid from the interior of said second valve means to said outlet when said multiple slot passages in said first valve means are in register with said slot means in said second valve means, and to prevent flow of pressure fluid from said interior of said first valve means to said outlet when said slot means of each valve means are out of register;
displacement means is provided to effect registry of said slot means;
said displacement means axially displaces said first valve means; and said slot means are narrow slots perpendicular to the axis of said first valve means and said second valve means.
said central bore is a circular bore having an axis perpendicular to the flow of pressure fluid;
said first valve means is a cylindrical sleeve inserted in said central bore;
said second valve means is a hollow cylindrical plug inserted in said first valve means having its outside diameter in close-sliding fit with the inside diameter of said first valve means;
said first valve means and said second valve means each have a passage means from said pressure fluid inlet, said passage means in said first valve means and said passage means in said second valve means coacting to allow essentially full flow of pressure fluid into the interior of said second valve means;
said first valve means and said second valve means are each provided with a multiple slot passage, said multiple slot passage in each valve means having a combined area to permit essentially full flow of pressure fluid from the interior of said second valve means to said outlet when said multiple slot passages in said first valve means are in register with said slot means in said second valve means, and to prevent flow of pressure fluid from said interior of said first valve means to said outlet when said slot means of each valve means are out of register;
displacement means is provided to effect registry of said slot means;
said displacement means axially displaces said first valve means; and said slot means are narrow slots perpendicular to the axis of said first valve means and said second valve means.
5. The valve according to claim 4 wherein:
said displacement means is an electronic solenoid.
said displacement means is an electronic solenoid.
6. The valve according to claim 4 wherein:
said multiple slot passage is comprised of individual slots in parallel arrangement, each of said slots having a length substantially greater than the width of said slot.
said multiple slot passage is comprised of individual slots in parallel arrangement, each of said slots having a length substantially greater than the width of said slot.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33022681A | 1981-12-14 | 1981-12-14 | |
| US330,226 | 1989-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1185874A true CA1185874A (en) | 1985-04-23 |
Family
ID=23288832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000409214A Expired CA1185874A (en) | 1981-12-14 | 1982-08-11 | High speed - high flow spool valve |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS58102872A (en) |
| CA (1) | CA1185874A (en) |
| DE (1) | DE3233908A1 (en) |
| FR (1) | FR2518211A1 (en) |
| GB (1) | GB2112110B (en) |
| SE (1) | SE447297B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4314581A1 (en) * | 1993-04-27 | 1994-11-03 | Mannesmann Ag | Slide valve, in particular continuous valve |
| WO1997038248A1 (en) * | 1996-04-10 | 1997-10-16 | Applied Power Inc. | Bidirectional valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1654642A (en) * | 1924-10-27 | 1928-01-03 | Harry G Geissinger | Electromagnetic fuel-control valve |
| US1938943A (en) * | 1931-04-13 | 1933-12-12 | Cash A W Co | Valve |
| US2288607A (en) * | 1939-12-21 | 1942-07-07 | Stewart P Foltz | Pneumatically operated loudspeaker |
| US2601231A (en) * | 1948-02-13 | 1952-06-24 | Equipment Dev Co Inc | Quick-acting diaphragm operated gate valve |
| JPS6048669B2 (en) * | 1977-05-27 | 1985-10-29 | 大阪瓦斯株式会社 | low noise valve |
-
1982
- 1982-08-11 CA CA000409214A patent/CA1185874A/en not_active Expired
- 1982-08-13 SE SE8204700A patent/SE447297B/en not_active IP Right Cessation
- 1982-08-16 GB GB08223485A patent/GB2112110B/en not_active Expired
- 1982-09-13 DE DE19823233908 patent/DE3233908A1/en not_active Withdrawn
- 1982-09-27 JP JP16678582A patent/JPS58102872A/en active Granted
- 1982-12-14 FR FR8220973A patent/FR2518211A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| SE8204700L (en) | 1983-06-15 |
| JPS58102872A (en) | 1983-06-18 |
| GB2112110B (en) | 1986-01-15 |
| SE447297B (en) | 1986-11-03 |
| SE8204700D0 (en) | 1982-08-13 |
| FR2518211A1 (en) | 1983-06-17 |
| FR2518211B3 (en) | 1985-02-22 |
| GB2112110A (en) | 1983-07-13 |
| DE3233908A1 (en) | 1983-06-23 |
| JPH0355706B2 (en) | 1991-08-26 |
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