GB2067719A - A throttle mechanism - Google Patents
A throttle mechanism Download PDFInfo
- Publication number
- GB2067719A GB2067719A GB8040737A GB8040737A GB2067719A GB 2067719 A GB2067719 A GB 2067719A GB 8040737 A GB8040737 A GB 8040737A GB 8040737 A GB8040737 A GB 8040737A GB 2067719 A GB2067719 A GB 2067719A
- Authority
- GB
- United Kingdom
- Prior art keywords
- throttle
- shaft
- bearing
- diameter portion
- throttle shaft
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1035—Details of the valve housing
- F02D9/106—Sealing of the valve shaft in the housing, e.g. details of the bearings
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
A throttle mechanism of a fuel supply device for an internal combustion engine includes a throttle shaft 3, a throttle body 1 and a special bearing 12 placed between throttle shaft 3 and the throttle body 1. The bearing functions to prevent the throttle shaft from moving in its axial direction. A typical example of the bearing is a ball bearing. <IMAGE>
Description
SPECIFICATION
A throttle mechanism
This invention relates to a throttle mechanism of a fuel supply device for an internal combustion engine.
Fig. 1 shows such a type conventional throttle mechanism through which air is supplied with fuel into the internal combustion engine. The main portion of the throttle body of the throttle mechanism is shown in Fig. 1.
The throttle body 1 has a bore in which the airfuel mixture may flow in a normal manner. A circular throttle valve 2 is provided within the bore of the throttle body 1. The throttle valve 2 completely closes the bore of the throttle body 1 when the throttle valve 2 is set at an angle 0 (about 5--200) to the plane perpendicular to the center line of the bore of the throttle body 1. Also, as shown in Figs. 2 and 3, the throttle valve 2 is attached by way of a screw of rivet to a throttle shaft 3 in such a manner that the center in the thickness direction of the throttle valve 2 corresponds with the axis of the throttle shaft 3.
The throttle shaft 3 has at its one end a circular groove 4 in which an E-shaped clip 5 is attached.
A shim 6 is placed between the clip 5 and the right end of a plane bearing 8 for supporting the throttle shaft 3. The throttle valve 2 is so designed as to fit the bore when the throttle valve 2 is completely closed. Also, at that time, the shim 6 should be properly placed in position between the clip 5 and the right end of the plane bearing 8. For such a purpose, the throttle valve 2 is adjusted in respect to the bore when the throttle valve 2 is attached thereto. Thereafter, it is fixed to the throttle shaft 3 by way of a screw 2'.
In order to make the throttle valve 2 fit the bore of the throttle body 1 when the throttle valve 2 is completely closed, a clearance must be provided among the shim 6, the clip 5 and the right end of the plane bearing 8 to some extent.
Attached to the other end of the throttle shaft 3 are a spring 9 and a lever 7. The spring 9 has its hook-like ends which are fixed to the lever 7 and another plane bearing 10 of the throttle body 1, respectively, so that the throttle valve 2 is biased to close. The lever 7 is fixed in position to the throttle shaft 3 by means of a nut 11.
The spring 9 biases the throttle shaft 3 in its rotational and axial directions so that the throttle valve 2 is biased toward the lever 7 unless the throttle valve 2 fits the bore of the throttle body 1.
In other words, the throttle shaft 3 and the throttle valve 2 are pulled toward the lever 7 by means of the spring 9.
As shown in Fig. 4, a clearance S is formed between the line Ho and the line H,2 which are perpendicular to the horizontal line L0 passing the center 0 of the bore of the throttle body 1. The line L0 is the axis of the throttle shaft 3. The line Ho passes the intersection P0 of the horizontal line L0 and the circle having its short radius R of the throttle valve 2 which is almost equal to the radius of the bore of the throttle body 1. The line H12 passes the intersection P, of the circle and the horizontal line L, and the intersection P2 of the circle and the horizontal line L2. The line L, is on the uppermost surface of the throttle shaft 3.
When the throttle valve 2 is completely opened, as shown in Fig. 5, the maximum clearance Smax is formed between the surface of the bore and each end of the throttle shaft 3 if the throttle valve 2 is placed in position. Thus, when the throttle valve 2 is closed, no clearance is formed between the surface of the bore and the ends of the throttle shaft 3. When the throttle shaft 3 is opened completely, the maximum clearance 8max is formed therebetween. When the throttle valve 2 is opened to some degree, the clearance S is between 0 and max That is, O < S < Smax- However, in fact, the biasing force of the spring 9 urges the throttle shaft 3 to move toward its left end.Accordingly, the throttle shaft 3 and the throttle valve 2 are biased until the clearance among the bearing 8, the shim 6 and the clip 5 is minimized. In other words, when the throttle valve 2 is opened, the throttle shaft 3 moves toward the lever 7 so that the center of the throttle valve 2 separates from the center 0 of the bore of the throttle body portion 1.
In such a conventional throttle mechanism, when the throttle valve is partly opened, the center of the throttle valve is moved eccentric with respect to the bore of the throttle body 1. As a result, when air passes the throttle valve, the flow thereof is disturbed so that it cannot be equally distributed into a plurality of cylinders. For example, in Fig. 6, the air-fuel mixture is distributed into six cylinders. The line X shows are air-fuel ratio of the mixture supplied into six cylinders when the throttle valve is biased in the front direction as exaggerately illustrated in Fig. 6.
The line Y shows another air-fuel ratio of the airfuel mixture when the throttle valve is biased in the rear direction as shown exaggerately in Fig. 6.
The ratios of the air-fuel mixture in the six
cylinders are quite different when the throttle valve is biased.
Summary of the Invention
According to the present invention, a throttle mechanism of a fuel supply device for an internal combustion engine includes a throttle shaft, a throttle body having a portion for supporting the throttle shaft and a bearing such as a ball bearing placed between the supporting portion of the throttle body and the throttle shaft. The bearing can prevent the throttle shaft from moving in its axial direction.
An object of the present invention is to provide a throttle mechanism of a fuel supply device for an internal combustion engine in which an air-fuel mixture can be equally distributed into a plurality of engine cylinders even when a throttle valve is partly or completely opened.
Brief Description of the Drawings
These and other objects, features and advantages of the present invention will become more apparent from the following description of preferred embodiments thereof when taken in conjunction with the accompanying drawings in which:
Fig. 1 shows a conventional throttle mechanism for an internal combustion engine, partly in section;
Fig. 2 is a schematic sectional view showing a mode of attaching a throttle valve;
Fig. 3 is a schematic sectional view showing another mode of attaching a throttle valve;
Fig. 4 is a view for explaining a clearance formed between a throttle valve and the bore of a throttle body portion;
Fig. 5 is another view for explaining the maximum clearance between the throttle valve and the bore of the throttle body portion;;
Fig. 6 is a view showing air-fuel ratios of an airfuel mixture in multi engines in which the present invention is compared with the prior art;
Fig. 7 is a schematic view, partly in section, showing a throttle mechanism for an internal combustion engine according to a first embodiment of the present invention;
Fig. 8 is a sectional view showing an essential portion of the throttle mechanism as shown in
Fig. 7:
Fig. 9 is a sectional view showing a second embodiment of the present invention, corresponding to Fig. 9; Fig. 1 V 10 is a sectional view showing a third embodiment of the present invention;
Fig. 11 is a sectional view showing a fourth embodiment of the present invention;
Fig. 12 is a sectional view showing a fifth embodiment of the present invention;
Fig. 13 is a sectional view showing a sixth embodiment of the present invention; and
Fig. 14 is a sectional view showing a seventh embodiment of the present invention.
Detailed Description of the Preferred
Embodiments
Referring now to Figs. 7 and 8, a first embodiment of the present invention is shown. A throttle body 1 has a bore through which air can flow in a conventional manner. A throttle valve 2 is provided in the bore of the throttle body 1 to regulate the flow passage in the throttle body 1.
The throttle valve 2 is fixed at its central portion to a throttle shaft 3 so that the former can rotate together with the latter around the axis of the throttle shaft 3. Such a construction and others of the throttle mechanism are substantially the same as that of the conventional mechanism shown in
Fig. 1. Thus, the details thereof are not described.
According to the present invention, the throttle shaft 3 is supported by a bearing which can prevent the throttle shaft 3 from moving in its axial direction. A ball bearing 12 is a typical example of such a bearing. The ball bearing 12 includes in inner race fixed to one end portion of the throttle shaft 3 and an outer race fixed to a supporting portion 1 a of the throttle body 1. The other end portion of the throttle shaft 3 is connected to a lever, spring and others as in Fig. 1. The inner and outer races can be fixedly attached to the throttle shaft 3 and the throttle body 1, respectively, by press fit means or the like so that the inner and outer races cannot move in the rotational and axial directions thereof.
As best shown in Fig. 8, the throttle shaft 3 has at its right end a small diameter portion 3a in a stepped form on which the inner race of the ball bearing 12 can be fixedly attached. The supporting portion 1 a of the throttle body 1 corresponding to the plane bearing portion 8 of the throttle body 1 in the conventional throttle mechanism shown in
Fig. 1 is formed in a stepped shape to have a large diameter portion 1 c along the small diameter portion 3a of the throttle shaft 3. The outer race of the ball bearing 12 is fixed to the large diameter portion 1 c. That is, the ball bearing 12 is placed between the large diameter portion 1 c of the throttle body 1 and the small diameter portion 3a of the throttle shaft 3 at the innermost position thereof. The throttle shaft 3 cannot move in its axial direction due to the ball bearing 12.
Fig. 9 shows a second embodiment of the present invention. A cap 13 is fixed to the right end of the supporting portion 1 a of the throttle body 1. The throttle shaft 3 has at its right end a small diameter portion 3a in a stepped shape on which the inner race of the ball bearing 12 can be fixedly attached. The supporting portion 1 a of the throttle body 1, which corresponds to the plane bearing portion 8 of the throttle body 1 in the prior art throttle mechanism shown in Fig. 1, is formed in a stepped shape to have large diameter portion 1 c along the full length of the small diameter portion 3a of the throttle shaft 3. The outer race of the ball bearing 12 is fixed to the inner surface of the large diameter portion 1 c of the throttle body 1. In other words, the ball bearing 12 is fixed between the small diameter portion 3a of the throttle shaft 3 in the innermost position thereof.
The cap 13 has at its back side a leg portion 1 3a projecting inwardly to press the outer race of the ball bearing 12 onto the rear wall 1 d of the supporting portion 1 a of the throttle body 1. Also, the outer surface of the leg portion 1 3a of the cap 13 fits the inner surface of the large diameter portion 1 c of the supporting portion Ia of the throttle body 1. The periphery of the cap 13 is fixed onto the end surface of the supporting portion 1 a of the throttle body 1 by screws 1 5. A gasket 14 is placed between the periphery of the cap 13 and the end surface of the supporting portion 1 a of the throttle body 1.
Fig. 10 shows a third embodiment of the present invention. The ball bearing 12 is fixed between the small diameter portion 3a of the throttle shaft 3 and the large diameter portion 1 c of the supporting portion 1 a of the throttle body 1 as in Fig. 8. In this third embodiment, a collar 1 6 is placed on the small diameter portion 3a of the throttle shaft 3 in such a manner that the rear end of the collar 1 6b can press the inner race of the ball bearing 12 onto the rear wall of the small diameter portion 3a of the throttle shaft 3 by screwing a nut 1 8 on a female screw formed at the right end portion of the throttle shaft 3. The numeral 1 7 designates a washer for preventing the nut 1 7 from loosing.
Fig. 11 shows a fourth embodiment of the present invention which is similar to the first embodiment. A specific example of the ball bearing 12 is used in this fourth embodiment although the present invention is not limited to such a type of bearing.
Fig. 12 shows a fifth embodiment of the present invention. The bearing 12 is fixed between the small diameter portion 3a of the throttle shaft 3 and the large diameter portion 1 c of the supporting portion 1 a of the throttle body 1 as in the first embodiment of the present invention. In this fifth embodiment, the bearing 12 has a flange 1 2a at the outer end thereof so that the outer race of the bearing 12 can be fitly fixed to the supporting portion 1 a of the throttle body 1.
Fig. 13 shows a sixth embodiment of the present invention. The bearing 12 is fixed between the small diameter portion 3a of the throttle shaft 3 and the large diameter portion 1 c of the supporting portion 1 a of the throttle body 1 as in the first embodiment. In this sixth embodiment, a dust sealing member 1 9 is fixed to the right end of the supporting portion 1 a of the throttle body 1 to seal the space within the large diameter portion 1 c. The dust sealing member 19 can be attached by pressure fit means, screw, adhesives or other proper means.
Fig. 14 shows a seventh embodiment of the present invention. In this seventh embodiment, although the throttle shaft 3 has a small diameter portion 3a as in the first embodiment, the supporting portion 1 a of the throttle body 1 has a two-step portion consisting of a first large diameter portion 1 c extending along the small diameter portion 3a of the throttle shaft 3 and a second large diameter portion 1 e adjacent to the first large diameter portion 1 c at the rearrr.ost position. A sealing member 20 is placed between the second large diameter portion 1 e of the throttle body 1 and the main portion of the throttle shaft 3 so to prevent the fuel from entering the bearing 12 from the bore of the throttle body 1.
In the above-mentioned embodiments, a ball bearing is provided only at the end of the throttle shaft and a plane bearing is provided at the other end thereof. The present invention is not limited to such a construction. Both ends of the throttle shaft can be provided with a ball bearing. Also, although a ball bearing is used in the above-mentioned embodiments, other type bearing can be used which can prevent the throttle shaft from moving in its axial direction. It is preferable that such a special bearing is provided at one end of the throttle shaft where no force is applied thereto from a link mechanism including the lever 7, for example, as shown in Fig. 7.
In operation, for example, referring to Fig. 7, the throttle shaft 3 is attached by way of the ball bearing 12 to the supporting portion of the throttle body 1 in such a manner that the throttle shaft 3 cannot move in its axial direction except its axial movement within a clearance formed in the ball bearing itself in its thrust direction. At the first step, the position of the throttle valve 2 is adjusted with respect to the throttle shaft 3 in order to make the throttle valve 2 fit the bore of the throttle body 1. Thereafter, the throttle valve 2 is fixed to the throttle shaft 3 by means of the screw 2'.Thus, even when the throttle valve 2 is opened, the throttle shaft 3 and the throttle valve 2 does not move in the axial direction thereof so that the throttle valve 2 is always positioned at the center of the bore of the throttle body 1 and symmetric with respect to the line perpendicular to the axis of the throttle shaft 3. As a result, the air can smoothly flow so that a proper air-fuel mixture can be equally supplied into all cylinders a shown by the line Z in Fig. 6. It does not matter whether the fuel is supplied upstream or downstream of the throttle valve 2. The air-fuel mixture can be properly distributed to all the cylinders.
Also, the following advantages of the present invention can be obtained:
(1) The partial wear of the throttle valve can be reduced.
(2) A vacuum signal for use in advancings of ignition timing, EGR or the like can be made more precise.
(3) The friction between the bearing and the throttle body can be decreased. Thus, the throttle valve can smoothly return without errors.
(4) When the present invention is combined with a carburettor, the metering precision of the air-fuel mixture can be improved, although the present invention can be applied to any other type engines.
Claims (7)
1. A throttle mechanism of a fuel supply device for an internal combustion engine, comprising:
a throttle shaft;
a throttle body having a portion thereof for supporting rotatably the throttle shaft, the throttle body including a cylindrical bore formed therein leading to the internal combustion engine;
a circular throttle valve fixed to the throttle shaft in such a manner that the throttle valve can fit the bore of the throttle body when the throttle valve is closed;
means for biasing the throttle shaft in such a direction that the throttle valve is closed;
means for actuating the throttle shaft against the biasing force of the biasing means thereby to rotate the throttle valve and the throttle shaft so that the flow area between the bore of the throttle body and the periphery of the throttle valve can be regulated; and
a bearing provided between the supporting portion of the throttle body and the throttle shaft for preventing the throttle shaft from moving in its axial direction.
2. A throttle mechanism of claim 1 , wherein the bearing is a ball bearing.
3. A throttle mechanism of claim 2, wherein tht ball bearing is placed at one end of the throttle shaft.
4. A throttle mechanism of claims 1 or 2, further comprising means for sealing the bearing at one end of the throttle shaft to prevent dust from entering the bearding.
5. Throttle mechanism of claims 1 or 2, further comprising means for sealing the bearing to prevent fuel from entering the bearing from the bore of the throttle body.
6. A throttle mechanism of claim 5, wherein the throttle shaft has at one end portion a small diameter portion and the supporting portion of the throttle body has a two-step portion consisting of a first large diameter portion extending along the small diameter portion of the throttle shaft and a second large diameter portion adjacent to the first large diameter portion at the rearmost position, the bearing being placed between the first large diameter portion of the throttle body and the small diameter portion of the throttle shaft, the sealing.
means being placed between the second large diameter portion of the throttle body and the throttle shaft.
7. A throttle mechanism of claims 1 or 2, further comprising a cap fixed to an end portion of the supporting portion of the throttle body for pressing the bearing to increase the fixing force of the bearing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18516779U JPS56101437U (en) | 1979-12-29 | 1979-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2067719A true GB2067719A (en) | 1981-07-30 |
Family
ID=16165996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8040737A Withdrawn GB2067719A (en) | 1979-12-29 | 1980-12-19 | A throttle mechanism |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS56101437U (en) |
| DE (1) | DE3048995A1 (en) |
| FR (1) | FR2472670A1 (en) |
| GB (1) | GB2067719A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0131364A2 (en) * | 1983-07-07 | 1985-01-16 | General Motors Corporation | Valve assembly |
| EP0466227A1 (en) * | 1990-07-12 | 1992-01-15 | General Motors Corporation | Valve assembly |
| US5146887A (en) * | 1990-07-12 | 1992-09-15 | General Motors Corporation | Valve assembly |
| FR2674600A1 (en) * | 1991-03-27 | 1992-10-02 | Solex | METHOD FOR MANUFACTURING THREADED BUTTERFLY FOR USE IN A FUEL SUPPLY SYSTEM. |
| FR2732073A1 (en) * | 1995-03-23 | 1996-09-27 | Bosch Gmbh Robert | TENSIONING DEVICE FOR INTERNAL COMBUSTION ENGINE AND METHOD OF MAKING SAME |
| GB2304861A (en) * | 1995-09-07 | 1997-03-26 | Ford Motor Co | Throttle shaft seal for a throttle body |
| WO2000031405A2 (en) * | 1998-11-26 | 2000-06-02 | Mannesmann Vdo Ag | Butterfly valve body |
| EP1083315A2 (en) * | 1999-09-08 | 2001-03-14 | Siemens Canada limited | Snap-fit throttle shaft |
| US6427975B1 (en) | 1999-09-08 | 2002-08-06 | Siemens Vdo Automotive Inc. | Throttle body insert for intake manifold |
| WO2013026979A1 (en) * | 2011-08-25 | 2013-02-28 | Valeo Systemes De Controle Moteur | Fluid-circulation valve having a mobile flap |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004043125B4 (en) * | 2004-09-07 | 2017-10-05 | Robert Bosch Gmbh | throttling device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR504898A (en) * | 1918-10-16 | 1920-07-19 | John Walker | Carburetor improvements for internal combustion engines |
| GB292174A (en) * | 1927-06-17 | 1929-01-17 | Zenith Carburateur Soc Du | Improvements in or relating to carburetters |
| FR668201A (en) * | 1927-12-24 | 1929-10-29 | Method and device for sealing bodies which are placed in a partition separating spaces where different tensions prevail | |
| US2202423A (en) * | 1938-11-08 | 1940-05-28 | Addison C Hoof | Combined throttle and governor device |
| US2412021A (en) * | 1943-04-05 | 1946-12-03 | Carter Carburetor Corp | Carburetor throttle control |
| DE837785C (en) * | 1943-05-15 | 1952-05-02 | Bayerische Motoren Werke Ag | Ball bearing seal for the throttle valve shafts of carburetors |
| US2603444A (en) * | 1948-05-28 | 1952-07-15 | Carter Carburetor Corp | Valve assembly |
| FR2205136A5 (en) * | 1972-10-26 | 1974-05-24 | Skf Cie Applic Mecanique | |
| FR2224644B1 (en) * | 1973-04-05 | 1980-04-11 | Sibe | |
| NL172525C (en) * | 1974-06-17 | 1983-09-16 | Skf Ind Trading & Dev | WHEEL WITH BEARING SEAL AND HUB COVER. |
-
1979
- 1979-12-29 JP JP18516779U patent/JPS56101437U/ja active Pending
-
1980
- 1980-12-19 GB GB8040737A patent/GB2067719A/en not_active Withdrawn
- 1980-12-23 FR FR8027361A patent/FR2472670A1/en active Pending
- 1980-12-24 DE DE19803048995 patent/DE3048995A1/en not_active Ceased
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0131364A3 (en) * | 1983-07-07 | 1985-06-12 | General Motors Corporation | Valve assembly |
| EP0131364A2 (en) * | 1983-07-07 | 1985-01-16 | General Motors Corporation | Valve assembly |
| EP0466227A1 (en) * | 1990-07-12 | 1992-01-15 | General Motors Corporation | Valve assembly |
| US5146887A (en) * | 1990-07-12 | 1992-09-15 | General Motors Corporation | Valve assembly |
| EP0574093A1 (en) * | 1990-07-12 | 1993-12-15 | General Motors Corporation | Valve assembly |
| FR2674600A1 (en) * | 1991-03-27 | 1992-10-02 | Solex | METHOD FOR MANUFACTURING THREADED BUTTERFLY FOR USE IN A FUEL SUPPLY SYSTEM. |
| EP0507652A1 (en) * | 1991-03-27 | 1992-10-07 | Solex | Method of manufacturing a butterfly valve in a fuel supplying installation |
| US5687691A (en) * | 1995-03-23 | 1997-11-18 | Robert Bosch Gmbh | Throttle device and method for producing a throttle device |
| FR2732073A1 (en) * | 1995-03-23 | 1996-09-27 | Bosch Gmbh Robert | TENSIONING DEVICE FOR INTERNAL COMBUSTION ENGINE AND METHOD OF MAKING SAME |
| GB2304861B (en) * | 1995-09-07 | 1999-09-01 | Ford Motor Co | Throttle shaft seal for a throttle body |
| GB2304861A (en) * | 1995-09-07 | 1997-03-26 | Ford Motor Co | Throttle shaft seal for a throttle body |
| WO2000031405A2 (en) * | 1998-11-26 | 2000-06-02 | Mannesmann Vdo Ag | Butterfly valve body |
| WO2000031405A3 (en) * | 1998-11-26 | 2002-11-28 | Mannesmann Vdo Ag | Butterfly valve body |
| KR100763047B1 (en) * | 1998-11-26 | 2007-10-02 | 만네스만 파우데오 아게 | Butterfly valve body |
| EP1083315A2 (en) * | 1999-09-08 | 2001-03-14 | Siemens Canada limited | Snap-fit throttle shaft |
| EP1083315A3 (en) * | 1999-09-08 | 2001-09-05 | Siemens Canada limited | Snap-fit throttle shaft |
| US6427975B1 (en) | 1999-09-08 | 2002-08-06 | Siemens Vdo Automotive Inc. | Throttle body insert for intake manifold |
| US6508454B1 (en) | 1999-09-08 | 2003-01-21 | Siemens Canada Limited | Snap-fit throttle shaft |
| WO2013026979A1 (en) * | 2011-08-25 | 2013-02-28 | Valeo Systemes De Controle Moteur | Fluid-circulation valve having a mobile flap |
| FR2979408A1 (en) * | 2011-08-25 | 2013-03-01 | Valeo Sys Controle Moteur Sas | MOBILE FLUID CIRCULATION VALVE |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3048995A1 (en) | 1981-10-01 |
| JPS56101437U (en) | 1981-08-10 |
| FR2472670A1 (en) | 1981-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |