CA1232801A - Electromagnetically-controlled valve, suitable for controlling an additional air flow in a feed equipment for an internal combustion engine - Google Patents
Electromagnetically-controlled valve, suitable for controlling an additional air flow in a feed equipment for an internal combustion engineInfo
- Publication number
- CA1232801A CA1232801A CA000452031A CA452031A CA1232801A CA 1232801 A CA1232801 A CA 1232801A CA 000452031 A CA000452031 A CA 000452031A CA 452031 A CA452031 A CA 452031A CA 1232801 A CA1232801 A CA 1232801A
- Authority
- CA
- Canada
- Prior art keywords
- obturator
- bushing
- tubular element
- air
- air flow
- 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
Abstract
ABSTRACT
Hereunder an electromagnetically-controlled valve suitable for controlling an additional air flow in a feed equipment for an internal combustion engine, is described: it includes an air inlet from a room exposed to the atmospheric pressu-re and air outlet orifices to a room with lower pressure, with a first by-pass channel for the above mentioned inlet and a second one for the air coming out of the orifices;
the invention is characterized by the fact that it includes an obturator to vary the passage section of the above men-tioned orifices under the action of an electromagnet and a contrast spring.
Hereunder an electromagnetically-controlled valve suitable for controlling an additional air flow in a feed equipment for an internal combustion engine, is described: it includes an air inlet from a room exposed to the atmospheric pressu-re and air outlet orifices to a room with lower pressure, with a first by-pass channel for the above mentioned inlet and a second one for the air coming out of the orifices;
the invention is characterized by the fact that it includes an obturator to vary the passage section of the above men-tioned orifices under the action of an electromagnet and a contrast spring.
Description
~3Z8~1 The present invention relates to an electromagnet tically-controlled valve, suitable for controlling an add-tonal air flow in a feed equipment for an internal combs-lion engine.
The present invention permits the controlling of an additional air flow for intervening opportunely on the amount of the mixture delivered by a feed equipment of an internal combustion engine. In particular, the present invention is referred to a valve of the above mentioned type which controls a connect pipe between two zones of an intake passage. These zones are placed up-and downstream of the throttle valve respectively, in order to obtain an additional air flow determined according to the requirements of the engine working.
Devices, which control an additional air flow between the parts of the feed equipment, which are placed on the up and downstream of the throttle valve, are known.
Their structure presents a by-pass channel interconnecting the intake passage located upstream of the throttle valve to the intake passage located downstream of the throttle valve; in the bypass channel there is a device to control the air flow, like a fixed section bush or an adjustable section bush by the conic drill of an adjusting screw.
In such devices it is impossible to vary the controlling bush section during the engine working in order to adapt the additional air flow to the working requirements of the engine itself.
This invention has its object to overcome the above drawback.
According to the present invention, there is provided an electromagnetically controlled valve for control-lying additional air flow delivered by a feed equipment also-elated with an internal combustion engine;
said equipment comprising at least an intake ., ~L2~2801 passage having a throttle valve;
said electromagnetically controlled valve compare-sing:
an air inlet connected with a first part of said intake passage, said air inlet being positioned upstream of a throttle valve;
an air outlet connected with a second part of the intake passage, said air outlet being positioned downs-treat of the throttle valve;
a hollow tubular element connected to said air inlet and having primary connecting orifices between said air inlet and said air outlet;
a movable obturator housed within said tubular element, said movable obturator comprising a bushing of non magnetic material and a magnetic keeper housed within said bushing, said obturator being slid able within said tubular element;
first and second stopping means for stopping movements of said obturator at limit positions within said 0 tubular element;
said first stopping means being defined by a ring inserted in a groove made in a pin coaxial with said tubular element;
said second stopping means being defined by a 5 shoulder of a casing for a winding;
a magnetic field generating means for generating a magnetic field to move said obturator between said limit positions, said generating means including a core disposed in said casing for said winding;
a return spring means for biasing said obturator against the forces generated by said magnetic field;
said core including a first support for said spring means;
said support being located in said core;
1232~
-pa-said bushing including a second support for said spring means, said second support being disposed in said bushing;
said bushing including secondary orifices to connect said air inlet with an internal part of said tubular element; and said obturator including a conical edge positioned to selectively open said primary connecting orifices respond size to energization of said winding to obtain luminary air flow across said primary connecting orifices, said luminary air flow being directly proportional to an air passage section provided by said primary connecting orifices, depending on the position of said obturator.
According to the present invention, there is also provided an electromagnetically controlled valve for controlling additional air flow delivered by a feed equip-mint associated with an internal combustion engine sets equipment comprising at least an intake passage having a throttle valve:
said electromagnetically controlled valve compare-sing:
an air inlet for air coming from a first part of the intake passage, said first part being positioned upstream of the throttle valve;
an air outlet for air moving toward a second part of the intake passage, said second part being position nod downstream of the throttle valve;
a hollow tubular element connected to said air inlet and having primary connecting orifices between said air inlet and said air outlet a movable obturator housed within said tubular element first and second stopping means for stopping movement of said obturator at limit positions within said ~L23Z8Q~L
-2b-obturator at limit positions within said tubular element a magnetic field generating means for generating a magnetic field to move said obturator between said limit positions, said generating means including a core disposed in a winding energizable by electrical control means;
a return spring means for biasing said obturator against the forces generated by said magnetic field;
said obturator including a movable keeper made of ferromagnetic material disposed in a bushing of non-magnetic material both for sliding within said tubular eye-mint;
said bushing including a second support for said spring, said second support being disposed in said bushing;
said bushing including secondary orifices to connect said air inlet with an internal part of said tubular element;
said obturator including a conical edge positioned to selectively open said primary connecting orifices respond size to energization of said winding to obtain luminary air flow across said primary connecting orifices, said luminary air flow being directly proportional -to an air passage sea-lion provided by said primary connecting orifices; and said second stopping means comprising an elastic ring disposed in a groove of a pin integral with said magnet tic core, said ring being disposed on an opposite side offside bushing from a side of said bushing on which said spring is disposed.
Preferably, the bushing is formed of aluminum.
, The advantages obtained, thanks to this invention, are essentially: the capacity to control the additional air flow while the engine is working; to avoid that the difference between the pressure existing in the rooms connected by this valve creates appreciable forces to win; and the fact that the valve obturator is an integral part of the magnetic 1232~
-2c-circuit, as in it the moving ferromagnetic element is drown nod. This ferromagnetic element is attracted by the fixed element against the action of a contrast spring.
Such a structure lends itself to karat number-less balance positions of the obturator in respect to the fixed openings to obtain passage sections having the required area, intervening on the pick up current value of the magnet tic winding.
A preferred embodiment will now be described as example without limitative manner with reference to the attached drawings, wherein:
Figure 1: the single Figure represents a valve according to the present invention, shown in section by 3 123280~
symmetry plane.
The valve shown in fig. l is located in a pipe which joints a first orifice to a second one, made in an intake passage of an internal combustion engine, respectively on the up 65 stream arid downstream of the throttle valve; the above mention nod devices are not represented, as well known in the motor technic field.
This valve presents a body globally indicated with 8, pro-voided with an inlet 7 for the above mentioned pipe and 70 connected to the first orifice through a by-pass channel 1.
The above mentioned inlet 7 is situated at the top of a tutu-far element 9, an integral part of the body 8; in the eye-mint 9 there are two orifices lo and lob diametrically oppo-sod and suitable to connect the internal part of said tubular 75 element 9 with a chamber 11 defined by the external surface of said element 9 and by the internal surface of a sleeve 12 winch joints the pipe which is not represented in body 8 and which is jointed to the second orifice not represented, by a pass-channel 2. in this way it has been made an air 80 connection between the orifice on the upstream and the one on the downstream of the throttle, in said connection the above mentioned body 8 being inserted to control the air flow varying the passage section of said orifices lo and lob 85 For this last purpose, the above mentioned body 8 includes, in addition to the sleeve 12 and to well known means neither described nor represented, for its stable positioning with respect to the intake passage, a magnetic winding 15 which - receives current from a not represented electrical control 90 unit, a core 16 of low magnetic hysteresis material, and a mow 4 1232~30~
bile keeper 17 made of low magnetic hysteresis material which is moved by the magnetic field generated by the above men-- toned energized winding 15, against the action of a contrast spring 18, which is placed between the above said core 16 95 and the said keeper 17. The latter is part of a mobile obturator , made up of a bush 20 of non-magnetic material, which is able to move inside the above said element 9; the said bush 20 has: a housing for the keeper wish is in-tegral part of the interior of obturator 19; an upper part 100 21 with a central orifice 22 and four eccentric orifices, of which orifices aye and 23c are shown in fig. 1 and connect the said inlet 7 with a cavity 29 inside body 8; on the upper part of said bush 20 there is a frustum of cone-shaped cavity 24, suitable to form a sharp edge on its top.
Central orifice 22 is crossed by a pin 26 jointed to core 16, and the said` pin presents a groove 27 to lodge a ring 28 that carries out the upper end stroke for the obturator 19, as the lower stroke end is made up of a shoulder 30 of a 110 container 31 of the said winding 15.
This special structure enables us to obtain the following:
a) a balance between pressures in inlet 7 and cavity 29, so that the obturator is not subject to axial thrusts due 115 to pressure forces on the two surfaces with equivalent areas, placed in front of the inlet 7 and cavity 29 respectively;
b) the control of the magnetic adhesive force of the keeper 17, thanks to the presence of the non-magnetic material with a defined thickness furlong the bush 20;
120 the positioning of the edge 24 with respect to the openings 5 ~Z32~
lo and lob by controlling the intensity of current that picks winding 15 up; such positioning varies the sections of the air flow passage from the inlet 7 to the chamber 11 and in this way it regulates the flow according to the work-125 in requirements of the engine being perceived and worked out by the above mentioned electrical control unit;
d ) lamination of the air flow due to the sharp edge 24 at the end of part 21 finally makes it possible to adjust the additional air flow to the uncovered opening and the differ 130 fence in pressure between the upstream and downstream of the obturator. This is lust one of the possible employments of this invention, whose peculiarity cannot be altered by the manufacture changes that can be made; shapes, size and used materials do not limit the scope of this invention, 135 in which every single component can be replaced by an equivalent one.
The present invention permits the controlling of an additional air flow for intervening opportunely on the amount of the mixture delivered by a feed equipment of an internal combustion engine. In particular, the present invention is referred to a valve of the above mentioned type which controls a connect pipe between two zones of an intake passage. These zones are placed up-and downstream of the throttle valve respectively, in order to obtain an additional air flow determined according to the requirements of the engine working.
Devices, which control an additional air flow between the parts of the feed equipment, which are placed on the up and downstream of the throttle valve, are known.
Their structure presents a by-pass channel interconnecting the intake passage located upstream of the throttle valve to the intake passage located downstream of the throttle valve; in the bypass channel there is a device to control the air flow, like a fixed section bush or an adjustable section bush by the conic drill of an adjusting screw.
In such devices it is impossible to vary the controlling bush section during the engine working in order to adapt the additional air flow to the working requirements of the engine itself.
This invention has its object to overcome the above drawback.
According to the present invention, there is provided an electromagnetically controlled valve for control-lying additional air flow delivered by a feed equipment also-elated with an internal combustion engine;
said equipment comprising at least an intake ., ~L2~2801 passage having a throttle valve;
said electromagnetically controlled valve compare-sing:
an air inlet connected with a first part of said intake passage, said air inlet being positioned upstream of a throttle valve;
an air outlet connected with a second part of the intake passage, said air outlet being positioned downs-treat of the throttle valve;
a hollow tubular element connected to said air inlet and having primary connecting orifices between said air inlet and said air outlet;
a movable obturator housed within said tubular element, said movable obturator comprising a bushing of non magnetic material and a magnetic keeper housed within said bushing, said obturator being slid able within said tubular element;
first and second stopping means for stopping movements of said obturator at limit positions within said 0 tubular element;
said first stopping means being defined by a ring inserted in a groove made in a pin coaxial with said tubular element;
said second stopping means being defined by a 5 shoulder of a casing for a winding;
a magnetic field generating means for generating a magnetic field to move said obturator between said limit positions, said generating means including a core disposed in said casing for said winding;
a return spring means for biasing said obturator against the forces generated by said magnetic field;
said core including a first support for said spring means;
said support being located in said core;
1232~
-pa-said bushing including a second support for said spring means, said second support being disposed in said bushing;
said bushing including secondary orifices to connect said air inlet with an internal part of said tubular element; and said obturator including a conical edge positioned to selectively open said primary connecting orifices respond size to energization of said winding to obtain luminary air flow across said primary connecting orifices, said luminary air flow being directly proportional to an air passage section provided by said primary connecting orifices, depending on the position of said obturator.
According to the present invention, there is also provided an electromagnetically controlled valve for controlling additional air flow delivered by a feed equip-mint associated with an internal combustion engine sets equipment comprising at least an intake passage having a throttle valve:
said electromagnetically controlled valve compare-sing:
an air inlet for air coming from a first part of the intake passage, said first part being positioned upstream of the throttle valve;
an air outlet for air moving toward a second part of the intake passage, said second part being position nod downstream of the throttle valve;
a hollow tubular element connected to said air inlet and having primary connecting orifices between said air inlet and said air outlet a movable obturator housed within said tubular element first and second stopping means for stopping movement of said obturator at limit positions within said ~L23Z8Q~L
-2b-obturator at limit positions within said tubular element a magnetic field generating means for generating a magnetic field to move said obturator between said limit positions, said generating means including a core disposed in a winding energizable by electrical control means;
a return spring means for biasing said obturator against the forces generated by said magnetic field;
said obturator including a movable keeper made of ferromagnetic material disposed in a bushing of non-magnetic material both for sliding within said tubular eye-mint;
said bushing including a second support for said spring, said second support being disposed in said bushing;
said bushing including secondary orifices to connect said air inlet with an internal part of said tubular element;
said obturator including a conical edge positioned to selectively open said primary connecting orifices respond size to energization of said winding to obtain luminary air flow across said primary connecting orifices, said luminary air flow being directly proportional -to an air passage sea-lion provided by said primary connecting orifices; and said second stopping means comprising an elastic ring disposed in a groove of a pin integral with said magnet tic core, said ring being disposed on an opposite side offside bushing from a side of said bushing on which said spring is disposed.
Preferably, the bushing is formed of aluminum.
, The advantages obtained, thanks to this invention, are essentially: the capacity to control the additional air flow while the engine is working; to avoid that the difference between the pressure existing in the rooms connected by this valve creates appreciable forces to win; and the fact that the valve obturator is an integral part of the magnetic 1232~
-2c-circuit, as in it the moving ferromagnetic element is drown nod. This ferromagnetic element is attracted by the fixed element against the action of a contrast spring.
Such a structure lends itself to karat number-less balance positions of the obturator in respect to the fixed openings to obtain passage sections having the required area, intervening on the pick up current value of the magnet tic winding.
A preferred embodiment will now be described as example without limitative manner with reference to the attached drawings, wherein:
Figure 1: the single Figure represents a valve according to the present invention, shown in section by 3 123280~
symmetry plane.
The valve shown in fig. l is located in a pipe which joints a first orifice to a second one, made in an intake passage of an internal combustion engine, respectively on the up 65 stream arid downstream of the throttle valve; the above mention nod devices are not represented, as well known in the motor technic field.
This valve presents a body globally indicated with 8, pro-voided with an inlet 7 for the above mentioned pipe and 70 connected to the first orifice through a by-pass channel 1.
The above mentioned inlet 7 is situated at the top of a tutu-far element 9, an integral part of the body 8; in the eye-mint 9 there are two orifices lo and lob diametrically oppo-sod and suitable to connect the internal part of said tubular 75 element 9 with a chamber 11 defined by the external surface of said element 9 and by the internal surface of a sleeve 12 winch joints the pipe which is not represented in body 8 and which is jointed to the second orifice not represented, by a pass-channel 2. in this way it has been made an air 80 connection between the orifice on the upstream and the one on the downstream of the throttle, in said connection the above mentioned body 8 being inserted to control the air flow varying the passage section of said orifices lo and lob 85 For this last purpose, the above mentioned body 8 includes, in addition to the sleeve 12 and to well known means neither described nor represented, for its stable positioning with respect to the intake passage, a magnetic winding 15 which - receives current from a not represented electrical control 90 unit, a core 16 of low magnetic hysteresis material, and a mow 4 1232~30~
bile keeper 17 made of low magnetic hysteresis material which is moved by the magnetic field generated by the above men-- toned energized winding 15, against the action of a contrast spring 18, which is placed between the above said core 16 95 and the said keeper 17. The latter is part of a mobile obturator , made up of a bush 20 of non-magnetic material, which is able to move inside the above said element 9; the said bush 20 has: a housing for the keeper wish is in-tegral part of the interior of obturator 19; an upper part 100 21 with a central orifice 22 and four eccentric orifices, of which orifices aye and 23c are shown in fig. 1 and connect the said inlet 7 with a cavity 29 inside body 8; on the upper part of said bush 20 there is a frustum of cone-shaped cavity 24, suitable to form a sharp edge on its top.
Central orifice 22 is crossed by a pin 26 jointed to core 16, and the said` pin presents a groove 27 to lodge a ring 28 that carries out the upper end stroke for the obturator 19, as the lower stroke end is made up of a shoulder 30 of a 110 container 31 of the said winding 15.
This special structure enables us to obtain the following:
a) a balance between pressures in inlet 7 and cavity 29, so that the obturator is not subject to axial thrusts due 115 to pressure forces on the two surfaces with equivalent areas, placed in front of the inlet 7 and cavity 29 respectively;
b) the control of the magnetic adhesive force of the keeper 17, thanks to the presence of the non-magnetic material with a defined thickness furlong the bush 20;
120 the positioning of the edge 24 with respect to the openings 5 ~Z32~
lo and lob by controlling the intensity of current that picks winding 15 up; such positioning varies the sections of the air flow passage from the inlet 7 to the chamber 11 and in this way it regulates the flow according to the work-125 in requirements of the engine being perceived and worked out by the above mentioned electrical control unit;
d ) lamination of the air flow due to the sharp edge 24 at the end of part 21 finally makes it possible to adjust the additional air flow to the uncovered opening and the differ 130 fence in pressure between the upstream and downstream of the obturator. This is lust one of the possible employments of this invention, whose peculiarity cannot be altered by the manufacture changes that can be made; shapes, size and used materials do not limit the scope of this invention, 135 in which every single component can be replaced by an equivalent one.
Claims (3)
1. An electromagnetically controlled valve for controlling additional air flow delivered by a feed equipment associated with an internal combustion engine;
said equipment comprising at least an intake passage having a throttle valve;
said electromagnetically controlled valve compri-sing:
an air inlet connected with a first part of said intake passage, said air inlet being positioned upstream of a throttle valve;
an air outlet connected with a second part of the intake passage, said air outlet being positioned down-stream of the throttle valve;
a hollow tubular element connected to said air inlet and having primary connecting orifices between said air inlet and said air outlet;
a movable obturator housed within said tubular element, said movable obturator comprising a bushing of non magnetic material and a magnetic keeper housed within said bushing, said obturator being slidable within said tubular element;
first and second stopping means for stopping movements of said obturator at limit positions within said tubular element;
said first stopping means being defined by a ring inserted in a groove made in a pin coaxial with said tubular element;
said second stopping means being defined by a shoulder of a casing for a winding;
a magnetic field generating means for generating a magnetic field to move said obturator between said limit positions, said generating means including a core disposed in said casing for said winding;
a return spring means for biasing said obturator against the forces generated by said magnetic field said core including a first support for said spring means;
said support being located in said core;
said bushing including a second support for said spring means, said second support being disposed in said bushing;
sais bushing including secondary orifices to connect said air inlet with an internal part of said tubular element; and said obturator including a conical edge positioned to selectively open said primary connecting orifices respon-sive to energization of said winding to obtain laminar air flow across said primary connecting orifices, said laminar air flow being directly proportional to an air passage sec-tion provided by said primary connecting orifices, depending on the position of said obturator.
said equipment comprising at least an intake passage having a throttle valve;
said electromagnetically controlled valve compri-sing:
an air inlet connected with a first part of said intake passage, said air inlet being positioned upstream of a throttle valve;
an air outlet connected with a second part of the intake passage, said air outlet being positioned down-stream of the throttle valve;
a hollow tubular element connected to said air inlet and having primary connecting orifices between said air inlet and said air outlet;
a movable obturator housed within said tubular element, said movable obturator comprising a bushing of non magnetic material and a magnetic keeper housed within said bushing, said obturator being slidable within said tubular element;
first and second stopping means for stopping movements of said obturator at limit positions within said tubular element;
said first stopping means being defined by a ring inserted in a groove made in a pin coaxial with said tubular element;
said second stopping means being defined by a shoulder of a casing for a winding;
a magnetic field generating means for generating a magnetic field to move said obturator between said limit positions, said generating means including a core disposed in said casing for said winding;
a return spring means for biasing said obturator against the forces generated by said magnetic field said core including a first support for said spring means;
said support being located in said core;
said bushing including a second support for said spring means, said second support being disposed in said bushing;
sais bushing including secondary orifices to connect said air inlet with an internal part of said tubular element; and said obturator including a conical edge positioned to selectively open said primary connecting orifices respon-sive to energization of said winding to obtain laminar air flow across said primary connecting orifices, said laminar air flow being directly proportional to an air passage sec-tion provided by said primary connecting orifices, depending on the position of said obturator.
2. An electromagnetically controlled valve for controlling additional air flow delivered by a feed equipment associated with an internal combustion engine;
said equipment comprising at least an intake passage having a throttle valve;
said electromagnetically controlled valve compri-sing:
an air inlet for air coming from a first part of the intake passage, said first part being positioned upstream of the throttle valve;
an air outlet for air moving toward a second part of the intake passage, said second part being positio-ned downstream of the throttle valve;
a hollow tubular element connected to said air inlet and having primary connecting orifices between said air inlet and said air outlet;
a movable obturator housed within said tubular element;
first and second stopping means for stopping movement of said obturator at limit positions within said tubular element;
a magnetic field generating means for generating a magnetic field to move said obturator between said limit positions, said generating means including a core disposed in a winding energizable by electrical control means;
a return spring means for biasing said obturator against the forces generated by said magnetic field;
said obturator including a movable keeper made of ferromagnetic material disposed in a bushing of non-magnetic material both for sliding within said tubular ele-ment;
said bushing including a second support for said spring, said second support being disposed in said bushing;
said bushing including secondary orifices to connect said air inlet with an internal part of said tubular element;
said obturator including a conical edge positioned to selectively open said primary connecting orifices respon-sive to energization of said winding to obtain laminar air flow across said primary connecting orifices, said laminar air flow being directly proportional to an air passage sec-tion provided by said primary connecting orifices; and said second stopping means comprising an elastic ring disposed in a groove of a pin integral with said magne-tic core, said ring being disposed on an opposite side of said bushing from a side of said bushing on which said spring is disposed.
said equipment comprising at least an intake passage having a throttle valve;
said electromagnetically controlled valve compri-sing:
an air inlet for air coming from a first part of the intake passage, said first part being positioned upstream of the throttle valve;
an air outlet for air moving toward a second part of the intake passage, said second part being positio-ned downstream of the throttle valve;
a hollow tubular element connected to said air inlet and having primary connecting orifices between said air inlet and said air outlet;
a movable obturator housed within said tubular element;
first and second stopping means for stopping movement of said obturator at limit positions within said tubular element;
a magnetic field generating means for generating a magnetic field to move said obturator between said limit positions, said generating means including a core disposed in a winding energizable by electrical control means;
a return spring means for biasing said obturator against the forces generated by said magnetic field;
said obturator including a movable keeper made of ferromagnetic material disposed in a bushing of non-magnetic material both for sliding within said tubular ele-ment;
said bushing including a second support for said spring, said second support being disposed in said bushing;
said bushing including secondary orifices to connect said air inlet with an internal part of said tubular element;
said obturator including a conical edge positioned to selectively open said primary connecting orifices respon-sive to energization of said winding to obtain laminar air flow across said primary connecting orifices, said laminar air flow being directly proportional to an air passage sec-tion provided by said primary connecting orifices; and said second stopping means comprising an elastic ring disposed in a groove of a pin integral with said magne-tic core, said ring being disposed on an opposite side of said bushing from a side of said bushing on which said spring is disposed.
3. A valve according to claim 1, wherein said bushing is formed of aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000452031A CA1232801A (en) | 1984-04-13 | 1984-04-13 | Electromagnetically-controlled valve, suitable for controlling an additional air flow in a feed equipment for an internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000452031A CA1232801A (en) | 1984-04-13 | 1984-04-13 | Electromagnetically-controlled valve, suitable for controlling an additional air flow in a feed equipment for an internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1232801A true CA1232801A (en) | 1988-02-16 |
Family
ID=4127658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000452031A Expired CA1232801A (en) | 1984-04-13 | 1984-04-13 | Electromagnetically-controlled valve, suitable for controlling an additional air flow in a feed equipment for an internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1232801A (en) |
-
1984
- 1984-04-13 CA CA000452031A patent/CA1232801A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU657891B2 (en) | Proportional flow valve | |
| CA2046001A1 (en) | Electromagnetic solenoid valve with variable force motor | |
| AU585523B2 (en) | Method and apparatus for metering fuel | |
| JP3044563B2 (en) | Proportional flow valve | |
| US4966195A (en) | Transmission pressure regulator | |
| US4848721A (en) | Hydraulic valve with integrated solenoid | |
| JPH0361777A (en) | Solenoid valve using permanent magnet | |
| US5070898A (en) | Metering valve | |
| US3942553A (en) | Digital fluid flow control system with trim adjustment | |
| JPS6435185A (en) | Flow control valve | |
| DE3410795A1 (en) | ELECTROPNEUMATIC CONVERTER | |
| US4453700A (en) | Fluid control valve assembly | |
| US4627596A (en) | Electromagnetically-controlled valve, suitable for controlling an additional air flow in a feed equipment for an internal combustion engine | |
| US3225782A (en) | Fluid control system | |
| JPH01316585A (en) | Variable force motor and solenoid valve with said variable force motor | |
| JPS6474371A (en) | Electromagnetically operable valve gear | |
| CA1232801A (en) | Electromagnetically-controlled valve, suitable for controlling an additional air flow in a feed equipment for an internal combustion engine | |
| JPS6453057A (en) | Fuel injection nozzle | |
| EP0128124B1 (en) | Electromagnetically-controlled valve, suitable for controlling an additional air flow in a feed equipment for an internal combustion engine | |
| DE4021624A1 (en) | ACTUATOR | |
| DE1500165A1 (en) | Method for controlling the actuator of a regulating device, in particular a solenoid valve | |
| JPH0327794B2 (en) | ||
| JPH0473036B2 (en) | ||
| CA1156908A (en) | Power transmission | |
| JPS58217880A (en) | Control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |