CA1086584A - Two position vacuum operated throttle kicker - Google Patents
Two position vacuum operated throttle kickerInfo
- Publication number
- CA1086584A CA1086584A CA308,415A CA308415A CA1086584A CA 1086584 A CA1086584 A CA 1086584A CA 308415 A CA308415 A CA 308415A CA 1086584 A CA1086584 A CA 1086584A
- Authority
- CA
- Canada
- Prior art keywords
- diaphragm
- housing
- vacuum
- inlet
- chamber
- 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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
- F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
- F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
- F15B11/123—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions by means of actuators with fluid-operated stops
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/08—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the pneumatic type
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Combustion & Propulsion (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
TWO POSITION VACUUM OPERATED
THROTTLE KICKER
Abstract A two position vacuum operated throttle positioner or kicker for automotive engines comprising a housing, a wall dividing the housing, a first diaphragm on one side of the wall thereby forming a chamber between one end of said housing and said first diaphragm to which a first vacuum inlet is connected and a second diaphragm adjacent the other side of the wall thereby providing a second vacuum chamber between wall and the diaphragm to which a second inlet is connected. The space between the second diaphragm and the wall is vented to the atmosphere.
A first shaft is associated with the first diaphragm and extends between the diaphragms. A second shaft is adapted to be actuated by the second diaphragm and has an end extending exteriorly of the housing, and a spring yieldingly urges both diaphragms and shafts in-wardly of said housing. When the first diaphragm is moved by application of vacuum to the first inlet the shafts are moved to first position and when vacuum is applied to said second inlet the second shaft is moved to a second position.
-i-
THROTTLE KICKER
Abstract A two position vacuum operated throttle positioner or kicker for automotive engines comprising a housing, a wall dividing the housing, a first diaphragm on one side of the wall thereby forming a chamber between one end of said housing and said first diaphragm to which a first vacuum inlet is connected and a second diaphragm adjacent the other side of the wall thereby providing a second vacuum chamber between wall and the diaphragm to which a second inlet is connected. The space between the second diaphragm and the wall is vented to the atmosphere.
A first shaft is associated with the first diaphragm and extends between the diaphragms. A second shaft is adapted to be actuated by the second diaphragm and has an end extending exteriorly of the housing, and a spring yieldingly urges both diaphragms and shafts in-wardly of said housing. When the first diaphragm is moved by application of vacuum to the first inlet the shafts are moved to first position and when vacuum is applied to said second inlet the second shaft is moved to a second position.
-i-
Description
-s~ ~
Thls inventlon relates to vacuum operated devices known as throttle kickers.
Background and Summary of the Invention In automotive engines, it has long been known that stalling of the engine when the load is applied can be averted by utilizing a vacuum operated device known as a throttle kicker which functions upon the application of vacuum to prevent the throttle from moving to a lower or idle position or to advance an already idled engine.
With the trend to provide small engines in automo-,.
tive vehicles, the tendency for stalling lS increased as each auxiliary device, such as automatic transmission and air conditioning, is added to a vehicle having the smaller engine. `
Accordingly, the invention is intended to provide a multiple position throttle kicker which functions upon engagement or energization o each a~ditional auxiliary device to further advance the throttle so that in effect -there is a multiple position vacuum operated throttle kicker.
In accordance with the invention, the two position vacuum operated throttle kicker comprises a housing, a wall dividing the said housing, a first diaphragm on ~ ;~
one side of the wall thereby forming a chamber between one end of said housing and the said first diaphragm, a vacuum inlet to the first chamber, and a second diaphragm adjacent the other side of the wall and thereby pro-:
16Sl5191 viding a second vacuum chamber between said housingand the diaphragm, and a vacuum inlet to the second chamber.
When the first diaphragm is moved by application of vacuum to the first inlet the shafts are moved to first position and when vacuum is applied to said second inlet the second shaft is moved to a sesond position.
Description of the Drawings FIG. 1 is a side elevational view of a portion of an automotive system embodying the invention;
FIG. 2 is a sectional view on an enlarged scale taken along the line 2-2 in FIG. 1.
Description Referring to FIG. 1~ the two position vacuum operated throttle kicker 10 is adapted to be used in connection with the throttle linkage 11 to provide several positions of the throttle linkage 11 depending upon the auxiliary devices b~ng added, each auxiliary device being adapted to apply vacuum and thereby move the throttle link 11 to a greater idle speed position.
Referring to FI~,. 2, the vacuum kicker 10 comprises a housing 12 which is made of a central body portion 13 and end cap portions 14, 15 held in assembled relationship by turned over portions 16, 17 of the body portion 13.
Alternatively, the body portion 13 may be a part of either end cap portion 14, 15. An adapter or insert 18 is provided within the housing and a first diaphragm 19 and a second diaphragm 20 are clamped between the adapter 18 and the end members 14, 15. ~he adapter 18 includes
Thls inventlon relates to vacuum operated devices known as throttle kickers.
Background and Summary of the Invention In automotive engines, it has long been known that stalling of the engine when the load is applied can be averted by utilizing a vacuum operated device known as a throttle kicker which functions upon the application of vacuum to prevent the throttle from moving to a lower or idle position or to advance an already idled engine.
With the trend to provide small engines in automo-,.
tive vehicles, the tendency for stalling lS increased as each auxiliary device, such as automatic transmission and air conditioning, is added to a vehicle having the smaller engine. `
Accordingly, the invention is intended to provide a multiple position throttle kicker which functions upon engagement or energization o each a~ditional auxiliary device to further advance the throttle so that in effect -there is a multiple position vacuum operated throttle kicker.
In accordance with the invention, the two position vacuum operated throttle kicker comprises a housing, a wall dividing the said housing, a first diaphragm on ~ ;~
one side of the wall thereby forming a chamber between one end of said housing and the said first diaphragm, a vacuum inlet to the first chamber, and a second diaphragm adjacent the other side of the wall and thereby pro-:
16Sl5191 viding a second vacuum chamber between said housingand the diaphragm, and a vacuum inlet to the second chamber.
When the first diaphragm is moved by application of vacuum to the first inlet the shafts are moved to first position and when vacuum is applied to said second inlet the second shaft is moved to a sesond position.
Description of the Drawings FIG. 1 is a side elevational view of a portion of an automotive system embodying the invention;
FIG. 2 is a sectional view on an enlarged scale taken along the line 2-2 in FIG. 1.
Description Referring to FIG. 1~ the two position vacuum operated throttle kicker 10 is adapted to be used in connection with the throttle linkage 11 to provide several positions of the throttle linkage 11 depending upon the auxiliary devices b~ng added, each auxiliary device being adapted to apply vacuum and thereby move the throttle link 11 to a greater idle speed position.
Referring to FI~,. 2, the vacuum kicker 10 comprises a housing 12 which is made of a central body portion 13 and end cap portions 14, 15 held in assembled relationship by turned over portions 16, 17 of the body portion 13.
Alternatively, the body portion 13 may be a part of either end cap portion 14, 15. An adapter or insert 18 is provided within the housing and a first diaphragm 19 and a second diaphragm 20 are clamped between the adapter 18 and the end members 14, 15. ~he adapter 18 includes
-2-, :
1~186S15 ~
a wall 21 that divides the housing and a central portion 22 that acts as a bearing for a shaft 23. Shaft 23 has a washer 24 fixed thereto at one end and extends toward the diaphragm 20. An O ring 25 provides a seal with the shaft 23. The diaphragms l9, 20 are imperforate and made of flexible resilient material. Each diaphragm 19, 20 is formed with a peripheral bind 19a, 20a which fits into a groove for better sealing.
A second shaft 26 is connected to a washer 27 .
that contacts the diaphragm 20 and through an adjustable fitting 28 extends to the exterior of the housing. The adapter 28 is threaded into a fixed fitting 29 in the end of the housing 15 so that by threading the adapter 28 in- ~;
wardly and outwardly the inner end 30 o the adapter 28 serves as an abutment for the washer 27 limiting the.
movement of the shaft 26 outwardly. The shaft 26 in- ~:
cludes an extension 31 that is threaded in the outer end thereof for adjusting the length of the shaft 26. The extension 31 includes a hexagonal portion 32 for connect-ing a wrench and the shaft 26 includes an end portion with flat ends as at 33 for holding the shaft by a wrench for adjustment of extension 31 relative to the shaft 26. Similarly, the fitting 28 includes a hexagonal
1~186S15 ~
a wall 21 that divides the housing and a central portion 22 that acts as a bearing for a shaft 23. Shaft 23 has a washer 24 fixed thereto at one end and extends toward the diaphragm 20. An O ring 25 provides a seal with the shaft 23. The diaphragms l9, 20 are imperforate and made of flexible resilient material. Each diaphragm 19, 20 is formed with a peripheral bind 19a, 20a which fits into a groove for better sealing.
A second shaft 26 is connected to a washer 27 .
that contacts the diaphragm 20 and through an adjustable fitting 28 extends to the exterior of the housing. The adapter 28 is threaded into a fixed fitting 29 in the end of the housing 15 so that by threading the adapter 28 in- ~;
wardly and outwardly the inner end 30 o the adapter 28 serves as an abutment for the washer 27 limiting the.
movement of the shaft 26 outwardly. The shaft 26 in- ~:
cludes an extension 31 that is threaded in the outer end thereof for adjusting the length of the shaft 26. The extension 31 includes a hexagonal portion 32 for connect-ing a wrench and the shaft 26 includes an end portion with flat ends as at 33 for holding the shaft by a wrench for adjustment of extension 31 relative to the shaft 26. Similarly, the fitting 28 includes a hexagonal
-3-' ~:
portion 34. A lock nut 35 is threaded on the fitting 29 for clamping the entire assembly on a bracket 36.
A first vacuum inlet 37 extends radially inwardly through an opening 38 in the outer annular wall of the adapter la to the first chamber "A" formed between the diaphragm 19 and the adapter 18. A second vacuum inlet ~ ;
39 extends through the end cap 15 to the second chamber B formed between the diaphragm 20 and the end of the housing. A spring 40 is interposed between the washer 27 and the end of the housing 15 to yieldinqly urge the washer 27 and in turn, the shafts 23, 26 axially inwardly.
The space to the left of diaphragm 19 is vented to atmosphere through opening 14a. The space between the wall 21 and diaphragm 20 is vented to atmosphere through a passage 18a in adapter 18 and an aligned slot 13a in body portion 13.
When no vacuum is being applied, the parts are in the relative position as shown in Fig. 2.
Upon placement of the automatic transmission out of neutral, vacuum is first applied to the inlet 37 to the first chamber "A" moving the shaft 23 and in turn the shaft 26 outwardly so that the outer end of the portion 31 is positioned to place the throttle link 11 -
portion 34. A lock nut 35 is threaded on the fitting 29 for clamping the entire assembly on a bracket 36.
A first vacuum inlet 37 extends radially inwardly through an opening 38 in the outer annular wall of the adapter la to the first chamber "A" formed between the diaphragm 19 and the adapter 18. A second vacuum inlet ~ ;
39 extends through the end cap 15 to the second chamber B formed between the diaphragm 20 and the end of the housing. A spring 40 is interposed between the washer 27 and the end of the housing 15 to yieldinqly urge the washer 27 and in turn, the shafts 23, 26 axially inwardly.
The space to the left of diaphragm 19 is vented to atmosphere through opening 14a. The space between the wall 21 and diaphragm 20 is vented to atmosphere through a passage 18a in adapter 18 and an aligned slot 13a in body portion 13.
When no vacuum is being applied, the parts are in the relative position as shown in Fig. 2.
Upon placement of the automatic transmission out of neutral, vacuum is first applied to the inlet 37 to the first chamber "A" moving the shaft 23 and in turn the shaft 26 outwardly so that the outer end of the portion 31 is positioned to place the throttle link 11 -
-4-.
. .
'. . : .: ': : :' .
~l()8~;S8~
in a first position. Adjus-tment of this position i5 controlled by rotating extension 31. The bearing portion :
22 of adap-ter 18 limits the movement of shaEt 23 by contact with washer 24.
l~hen a device such as air conditioning is applied, vacuum is also applied to the second inlet 39 causing the vacuum chamber B to be evacuated and moving the second diaphragm 20 further to the right against the action of the spring 40 and thereby positioning the shaft 26 and the outer end of the extension 31 so that the throttle link assumes a second position which causes ~ ~ :
the engine to idle at a faster speed thereby preventing stalling.
It can thus be seen that there has been provided a low cost two position throttle kicker or device. The device utilizes a minimum number of parts and is subject ~ ~ ~
to minimal maintenance. The use of imperforate diaphragms ~ ~:
also minimizes leakage problems.
::
. .
'. . : .: ': : :' .
~l()8~;S8~
in a first position. Adjus-tment of this position i5 controlled by rotating extension 31. The bearing portion :
22 of adap-ter 18 limits the movement of shaEt 23 by contact with washer 24.
l~hen a device such as air conditioning is applied, vacuum is also applied to the second inlet 39 causing the vacuum chamber B to be evacuated and moving the second diaphragm 20 further to the right against the action of the spring 40 and thereby positioning the shaft 26 and the outer end of the extension 31 so that the throttle link assumes a second position which causes ~ ~ :
the engine to idle at a faster speed thereby preventing stalling.
It can thus be seen that there has been provided a low cost two position throttle kicker or device. The device utilizes a minimum number of parts and is subject ~ ~ ~
to minimal maintenance. The use of imperforate diaphragms ~ ~:
also minimizes leakage problems.
::
Claims
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1.
A two position vacuum operated throttle kicker comprising a housing, a wall dividing said housing, a first diaphragm on one side of said wall thereby forming a first chamber between one end of said housing and said first diaphragm, a vacuum inlet to said first chamber, a second diaphragm adjacent the other side of said wall and thereby providing a second chamber between said housing and said diaphragm, a vacuum inlet to said second chamber, means for venting the space between said second diaphragm and said wall to the atmosphere, a shaft associated with said first diaphragm and extending between said diaphragms, a second shaft adapted to be actuated by said second diaphragm and having an end extending exteriorly of said housing, and spring means yieldingly urging said first and second diaphragms and said shafts inwardly of said housing, such that when the first is moved by application of vacuum to the first inlet the shafts are moved to first position and when vacuum is applied to said second inlet the shafts are moved to a second position.
2.
The combination set forth in claim 1 including adjustable stop means for said second diaphragm for adjusting the axially outward position of said second diaphragm and said second shaft relative to said housing.
3.
The combination set forth in claim 2 including means for adjusting the extent of projection of said second shaft by said second diaphragm.
4.
The combination set forth in claim 1 wherein each of said diaphragms is imperforate, including washer means connected to the respective shafts and said diaphragms.
5.
A two position vacuum operated throttle kicker comprising a housing, an adapter having a wall dividing said housing, a first diaphragm on one side of said wall sealingly engaging said adapter forming a first chamber between one end of said housing and said first diaphragm, a vacuum inlet to said first chamber, a second diaphragm adjacent the other side of said wall sealingly engaging said adapter and thereby pro-viding a second chamber between said housing and said diaphragm, a vacuum inlet in said housing to said second chamber, said adapter and housing having openings for venting the space between said second diaphragm and said adapter to the atmosphere, a shaft associated with said first diaphragm and extending between said diaphragms, a second shaft adapted to be actuated by said second diaphragm and having an end extending exteriorly of said housing, and spring means yieldingly urging said both dia-phragms and said shafts inwardly of said housing, such that when the first is moved by application of vacuum to the first inlet the shafts are moved to first position and when vacuum is applied to said second inlet the shafts are moved to a second position.
6.
The combination set forth in claim 5 including adjustable stop means for said second diaphragm for adjusting the axially outward position of said second diaphragm and said second shaft relative to said housing.
7.
The combination set forth in claim 6 including means for adjusting the extent of projection of said second shaft by said second diaphragm.
8.
The combination set forth in claim 5 wherein each of said diaphragms is imperforate, including washer means connected to the respective shafts and engaging said diaphragms.
1.
A two position vacuum operated throttle kicker comprising a housing, a wall dividing said housing, a first diaphragm on one side of said wall thereby forming a first chamber between one end of said housing and said first diaphragm, a vacuum inlet to said first chamber, a second diaphragm adjacent the other side of said wall and thereby providing a second chamber between said housing and said diaphragm, a vacuum inlet to said second chamber, means for venting the space between said second diaphragm and said wall to the atmosphere, a shaft associated with said first diaphragm and extending between said diaphragms, a second shaft adapted to be actuated by said second diaphragm and having an end extending exteriorly of said housing, and spring means yieldingly urging said first and second diaphragms and said shafts inwardly of said housing, such that when the first is moved by application of vacuum to the first inlet the shafts are moved to first position and when vacuum is applied to said second inlet the shafts are moved to a second position.
2.
The combination set forth in claim 1 including adjustable stop means for said second diaphragm for adjusting the axially outward position of said second diaphragm and said second shaft relative to said housing.
3.
The combination set forth in claim 2 including means for adjusting the extent of projection of said second shaft by said second diaphragm.
4.
The combination set forth in claim 1 wherein each of said diaphragms is imperforate, including washer means connected to the respective shafts and said diaphragms.
5.
A two position vacuum operated throttle kicker comprising a housing, an adapter having a wall dividing said housing, a first diaphragm on one side of said wall sealingly engaging said adapter forming a first chamber between one end of said housing and said first diaphragm, a vacuum inlet to said first chamber, a second diaphragm adjacent the other side of said wall sealingly engaging said adapter and thereby pro-viding a second chamber between said housing and said diaphragm, a vacuum inlet in said housing to said second chamber, said adapter and housing having openings for venting the space between said second diaphragm and said adapter to the atmosphere, a shaft associated with said first diaphragm and extending between said diaphragms, a second shaft adapted to be actuated by said second diaphragm and having an end extending exteriorly of said housing, and spring means yieldingly urging said both dia-phragms and said shafts inwardly of said housing, such that when the first is moved by application of vacuum to the first inlet the shafts are moved to first position and when vacuum is applied to said second inlet the shafts are moved to a second position.
6.
The combination set forth in claim 5 including adjustable stop means for said second diaphragm for adjusting the axially outward position of said second diaphragm and said second shaft relative to said housing.
7.
The combination set forth in claim 6 including means for adjusting the extent of projection of said second shaft by said second diaphragm.
8.
The combination set forth in claim 5 wherein each of said diaphragms is imperforate, including washer means connected to the respective shafts and engaging said diaphragms.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US86295377A | 1977-12-21 | 1977-12-21 | |
| US862,953 | 1986-05-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1086584A true CA1086584A (en) | 1980-09-30 |
Family
ID=25339836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA308,415A Expired CA1086584A (en) | 1977-12-21 | 1978-07-31 | Two position vacuum operated throttle kicker |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1086584A (en) |
| DE (1) | DE2854550A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2830738C3 (en) * | 1978-07-13 | 1981-10-15 | Pierburg Gmbh & Co Kg, 4040 Neuss | Pneumatically operated adjustment device |
| US4483287A (en) * | 1982-05-10 | 1984-11-20 | Kysor Industrial Corporation | Mechanical engine protection system |
| FR2599112B1 (en) * | 1986-05-21 | 1988-12-09 | Prepac Sarl | LIQUID DELIVERY VALVE |
| JP4465878B2 (en) * | 2000-12-28 | 2010-05-26 | アイシン精機株式会社 | 2-stage actuator |
| DE102008021461A1 (en) * | 2008-04-29 | 2009-11-05 | Murrplastik Systemtechnik | Vacuum unit |
-
1978
- 1978-07-31 CA CA308,415A patent/CA1086584A/en not_active Expired
- 1978-12-18 DE DE19782854550 patent/DE2854550A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE2854550A1 (en) | 1979-06-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |