WO2020080928A1 - A motorcycle throttle body - Google Patents
A motorcycle throttle body Download PDFInfo
- Publication number
- WO2020080928A1 WO2020080928A1 PCT/MY2019/000041 MY2019000041W WO2020080928A1 WO 2020080928 A1 WO2020080928 A1 WO 2020080928A1 MY 2019000041 W MY2019000041 W MY 2019000041W WO 2020080928 A1 WO2020080928 A1 WO 2020080928A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaped
- cylinder
- constructed
- throttle body
- chamber
- Prior art date
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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
- F02D9/12—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit
- F02D9/16—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit the members being rotatable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M9/00—Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position
- F02M9/08—Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type; Carburettors having fuel-air mixing chambers of variable shape or position having throttling valves rotatably mounted in the passage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
Abstract
The present invention disclosed a throttle body (10) of the motorcycle comprising a throttle body housing (20); a cylinder-shaped valve assemble (30); and a valve cover plate (40). Unlike the conventional throttle body, the invented throttle body (10) is constructed without any shaft or butterfly plate blocking the flow of the air into the engine. The throttle body (10) invented according to the present invention consists of the cylinder-shaped valve assemble (30) that is able to be rotated within throttle body housing (20) between the air flow open and close position. The cylinder-shaped valve assemble (30) further consists of a cylindrical opening (32) which can be fully and widely opened and able to enhance the air flow into the engine and further magnify the engine power.
Description
A MOTORCYCLE THROTTLE BODY
FIELD OF THE INVENTION
The present invention relates to a motorcycle throttle body. More specifically, the present invention relates to a fully and widely opened motorcycle throttle body without any shaft or butterfly plate blocking the flow of the air into the engine in order to enhance the fuel injection and further magnify the engine power.
BACKGROUND OF THE INVENTION
Fuel injection technology is the fuel delivery system that is currently being used in most of automotive industries, replacing the old age carburetor system. The fuel injection system utilized the injector to inject the fuel into the engine combustion chamber. The fuel injection system is being controlled by Engine Control Unit (ECU) which will decide on how much fuel to be injected into the engine combustion chamber based on the reading of the related sensors in order to obtain the stoichiometric air-fuel ratio. The stoichiometric air-fuel ratio defines the right amount of fuel and air to produce the complete combustion process in the engine combustion chamber. Obtaining this perfect air-fuel ratio will result in minimizing the hazardous emission level to the environment.
As for the carburetor system, the air and fuel are being pre-mixed before entering the cylinder. The amount of fuel intake relatively depends on the amount of air enters into the carburetor venturi. There is no electronically control unit present in the carburetor that can monitor the air-fuel ratio intake for every cylinder. Therefore, the inconsistency of the intake of fuel and air become the major drawback of the carburetor as there is very little chance for it to achieve optimal air-fuel ratio. It is a fact that the fuel injection system has the upper hand in comparison to the carburetor system as it can boost the driving performance and fuel efficiency. While the carburetor system produces high level of hazardous emission, the fuel injection system offers the reduction of engine-out pollutant emission.
In principal, the fuel injection system operates concurrently with the air intake system that supplies the air in order for the combustion process to take place in the engine combustion chamber. The function of air intake system in the motorcycle is to allow the air to reach the engine section. The throttle body which is one of the main important components in the air intake system is employed to limit the amount of air intake into the engine combustion system. Basically, the throttle body is located in between the air intake filter and the intake manifold of the motorcycle. The present throttle body comprises round-shaped plate called butterfly valve and the shaft which embedded onto the plate, located at the centre of the throttle body. The butterfly valve is positioned directly perpendicular to the direction of the air flows. As the gas throttle is turned, the butterfly valve will be opened and enable the air to pass along the air intake system. Principally, the butterfly valve will make a 90 degree rotation to enable the air to get through and later flow into the engine combustion chamber. Hence, by allowing more air into the engine, a mass airflow sensor will detect the changes and signaling the Engine Control Unit (ECU) to inject more fuel into the engine in order to obtain the optimal air-fuel ratio. As a result, it will generate more power and increase the engine performance.
However, this conventional throttle body has some disadvantages in term of performance which can be improved in the near future. For example, even when it is in fully opened condition, the shaft of the throttle body and the butterfly plate itself still present in the air pathway, inducing a pressure switch across the valve and restriction of the air flow. As a consequence, less air will reach the engine, causing the reduction of fuel injection into the engine combustion chamber, thus eventually decreasing the engine power.
There are many other types of throttle body in the market designed to enhance the engine power efficiently, for instance US Patent No. US 7021264B2 and US Patent No. US 9303567B2. Nevertheless, the said prior arts are much more complicated and complex in term of design which may contribute to the difficulties of installing. The other invention called slide throttle body has some resemblance with the butterfly throttle body as it consists of plate that is located in the middle of the air flow
pathway vertically, though this slide throttle body does not possess any shaft embedded onto the plate. It required special housing to receive the slide throttle body when it is in opened condition. There is possibility that the slide plate will be stuck because of the dirt and carbon buildup present between the housing and slide.
In view of the drawbacks and limitations of the conventional motorcycle throttle body, the present invention aims to create a widely opened throttle body without any shaft and the plate itself blocking the air flow into the engine, which can improve the fuel injection. Thus, the present invention is flexible and less complicated to be installed to the air intake system in order to assist and increase the engine performance of the motorcycle.
SUMMARY
An object of the present invention is to provide a fully and widely opened motorcycle throttle body without any shaft or butterfly plate present in the middle of the air pathway. The widely opened motorcycle throttle body is a device that is able to optimize the air intake into the engine, which triggers the fuel injection to increase in order to achieve stoichiometric air-fuel ratio and subsequently resulting in the amplification of engine power.
In a specific embodiment, the motorcycle throttle body comprising a throttle body housing; a cylinder-shaped valve assemble; and a valve cover plate.
The motorcycle throttle body invented according to the present invention has fulfilled all the desired characteristics such as cost effective, user-friendly, simplicity, easy installation and effective in term of performance.
This and other objects, features and advantages of the present invention will be readily apparent from the following descriptions.
BRIEF DESCRIPTION OF THE DRAWINGS/FIGURES
The accompanying drawings, which are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and together with the descriptions serve to explain the principles of the present invention.
Figure 1 shows the perspective view of a throttle body (10) according to one embodiment of the present invention;
Figure 2 shows the exploded perspective view the throttle body (10) according to one embodiment of the present invention;
Figure 3 shows the perspective view (right side) of the throttle body housing (20);
Figure 4 shows the perspective view (left side) of the throttle body housing (20);
Figure 5 shows the perspective view (right side) of the cylinder-shaped valve assemble (30);
Figure 6 shows the perspective view (left side) of the cylinder-shaped valve assemble (30);
Figure 7 shows the perspective view (right side) of the valve cover plate (40);
Figure 8 shows the perspective view (left side) of the valve cover plate (40);
Figure 9 shows the exploded perspective view of the throttle body (10) in which the cylinder-shaped valve assemble (30) and the valve cover plate (40) are inserting into the central casing (21) of the throttle body housing (20);
Figure 10 shows the front perspective view of the throttle body (10) in an air flow open position;
Figure 1 1 shows the front elevation view of the throttle body (10) in an air flow open position;
Figure 12 shows the front perspective view of the throttle body (10) in an air flow close position; and
Figure 13 shows the front elevation view of the throttle body (10) in an air flow close position.
DETAILED DESCRIPTIONS OF THE PRESENT INVENTION
In the following detailed descriptions, reference is made to various specific embodiments in which the present invention may be practiced. These embodiments are described with sufficient details to enable those skilled in the art to practice the present invention and it is to be understood that other embodiments may be employed and that structural and logical changes may be made without departing from the scope of the present invention.
In general, the present invention relates to a fully and widely opened motorcycle throttle body without any shaft or butterfly plate blocking the flow of the air into the engine in order to enhance the fuel injection and further magnify the engine power. Figure 1 shows the perspective view of a throttle body according to one embodiment of the present invention. In details, the throttle body invented according to the present invention involves structures that allow a cylinder-shaped valve assemble to be rotated within the throttle body housing between the air flow way open and close position. As the cylinder-shaped valve assemble constructed with a wide open cylindrical opening form a widely open air flow channel and without any shaft blocking, it allows more air flows into the engine and injects more fuel, thus, allowing more power to the motorcycle.
Figure 2 shows the exploded perspective view the throttle body according to one embodiment of the present invention in which the cylinder-shaped valve assemble and the valve cover plate have been pulled out and slightly separated by distance from the
throttle body housing to provide a clearer image on the relationship or assembly of various parts. As shown in Figure 2, the throttle body, indicated by reference numeral (10) according to the present invention comprising a throttle body housing, indicated by reference numeral (20); a cylinder-shaped valve assemble, indicated by reference numeral (30); and a valve cover plate, indicated by reference numeral (40). Referring back to Figure 1, the cylinder-shaped valve assemble (30) is inserted and mounted inside the throttle body housing (20). After the cylinder-shaped valve assemble (30) has been successfully inserted and mounted inside the throttle body housing (20), the valve cover plate (40) is mounted on the right surface of the throttle body housing (20) to conceal and cover the cylinder-shaped valve assemble (30). The throttle body (10) is preferably constructed of stainless steel or aluminium, but may be constructed from other materials.
Figure 3 shows the perspective view (right side) of the throttle body housing (20) and Figure 4 shows the perspective view (left side) of the throttle body housing (20). As referring to the Figure 3 and Figure 4, the throttle body housing (20) comprises a central casing, indicated by reference numeral (21) having a cylinder-shaped chamber, indicated by reference numeral (27); a round-shape chamber entrance, indicated by reference numeral (24); a tubular-shaped air inlet port, indicated by reference numeral (22); a tubular-shaped air and fuel outlet port, indicated by reference numeral (23); a round-shaped valve slot, indicated by reference numeral (25); and a fuel inlet channel, indicated by reference numeral (26).
Referring to the Figure 3 and Figure 4, the cylinder-shaped chamber (27) is constructed at the internal center of the central casing (21) with a flow way crossing through the cylinder-shaped chamber (27). One end of the flow way comprises the tubular-shaped air inlet port (22). The other end of the flow way comprises the fuel inlet channel (26) and the tubular-shaped air and fuel outlet port (23). ln other words, the tubular-shaped air inlet port (22) is constructed in front of the cylinder-shaped chamber (27) while the tubular-shaped air and fuel outlet port (23) is constructed at the back of the cylinder-shaped chamber (27) to create an air flow way in cylindershaped chamber (27). Besides, the fuel inlet channel (26) is constructed at the back of
the cylinder-shaped chamber (27) but in front of the tubular-shaped air and fuel outlet port (23). The air flow way permits air flowing into the cylinder-shaped chamber (27) through the tubular-shaped air inlet port (22) and mix with the fuel supplied from the fuel inlet channel (26), then, finally injected out from the tubular-shaped air and fuel outlet port (23).
Still referring to the Figure 3 and Figure 4, the round-shaped chamber entrance (24) is constructed on the right side of the cylinder-shaped chamber (27) while the roundshaped valve slot (25) is constructed on the left side of the cylinder-shaped chamber (27). The function of the round-shaped chamber entrance (24) is to provide an entrance for the cylinder-shaped valve assemble (30) to enter and mount within the cylinder-shaped chamber (27). The function of the round-shaped valve slot (25) is to allow the left end of the cylinder-shaped valve assemble (30) inserted into it to provide a fixed position.
Figure 5 shows the perspective view (right side) of the cylinder-shaped valve assemble (30) and Figure 6 shows the perspective view (left side) of the cylindershaped valve assemble (30). As referring to the Figure 5 and Figure 6, cylindershaped valve assemble (30) comprises a cylinder-shaped block, indicated by reference numeral (31); a cylindrical opening, indicated by reference numeral (32); a right shaft, indicated by reference numeral (33); a left shaft, indicated by reference numeral (34); a right cylindrical plug, indicated by reference numeral (35); a left cylindrical plug, indicated by reference numeral (36); and a rotation control track, indicated by reference numeral (37).
Referring to the Figure 5 and Figure 6, the cylinder-shaped valve assemble (30) is constructed by a cylinder-shaped block (31) with curved edge (38). The cylindrical opening (32) is constructed in the middle part of the cylinder-shaped block (31) crossing through the entire body of the cylinder-shaped block (31). The right cylindrical plug (35) is constructed at the right side center of the cylinder-shaped block (31) and the left cylindrical plug (36) is constructed at the left side center of the cylinder-shaped block (31). The right shaft (33) and left shaft (34) are constructed at
the right and left sides center of the cylinder-shaped block (31) and built along an axis transverse to the axis of the cylindrical opening (32). The rotation control track (37) is constructed at the left side of the cylinder-shaped block (31).
Figure 7 shows the perspective view (right side) of the valve cover plate (40) and Figure 8 shows the perspective view (left side) of the valve cover plate (40). As referring to the Figure 7 and Figure 8, the valve cover plate (40) comprises a roundshaped disc body, indicated by reference numeral (41); a disc center slot, indicated by reference numeral (42); and a round-shaped hollow disk, indicated by reference numeral (43).
Referring to the Figure 7 and Figure 8, the round-shaped disc body (41) is the main supportive body for entire assembly of the valve cover plate (40). The disc center slot (42) is constructed at the right side center of the round-shaped disc body (41); and the round-shaped hollow disk (43) is constructed at the left side center of the roundshaped disc body (41).
Figure 9 shows the exploded perspective view of the throttle body (10) in which the cylinder-shaped valve assemble (30) and the valve cover plate (40) are inserting into the central casing (21) of the throttle body housing (20). As shown in Figure 9, the cylinder-shaped valve assemble (30) is mounted within the cylinder-shaped chamber (27) of the central casing (21) for rotation concentrically within cylindrical surfaces. More particularly, the cylinder-shaped chamber (27) is spaced from cylindrical closure of the cylinder-shaped valve assemble (30) to provide clearance for free rotation of the closure.
In one specific embodiment, the left shaft (34) and the left cylindrical plug (36) of the cylinder-shaped valve assemble (30) are mounted on round-shaped valve slot (25) of the throttle body housing (20). The disc center slot (42) of the valve cover plate (40) is mounted on the right shaft (33) and right cylindrical plug (35) of the cylindershaped valve assemble (30). More particularly, the cylinder-shaped valve assemble (30) is mounted within the cylinder-shaped chamber (27) of the central casing (21) to
rotate about a fixed vertical axis and without substantial vertical movement so that the aforementioned clearance between the cylinder-shaped valve assemble (30) and the cylinder-shaped chamber (27) of the central casing (21) is maintained constant. This mounting of the cylinder-shaped valve assemble (30) permits it to be rotated between the air flow open position and air flow close position.
Figure 10 shows the front perspective view of the throttle body (10) in an air flow open position and Figure 1 1 shows the front elevation view of the throttle body (10) in an air flow open position. As shown in Figure 10 and Figure 1 1, at the air flow open position, the cylindrical opening (32) of the cylinder-shaped valve assemble (30) through the closure is aligned with the tubular-shaped air inlet port (22) and the tubular-shape air and fuel outlet port (23) of the throttle body housing (20).
Figure 12 shows the front perspective view of the throttle body (10) in an air flow close position and Figure 13 shows the front elevation view of the throttle body (10) in an air flow close position. As shown in Figure 12 and Figure 13, at the air flow close position, the cylindrical opening (32) of the cylinder-shaped valve assemble (30) through the closure is 90° disaligned with the tubular-shaped air inlet port (22) and the tubular-shaped air and fuel outlet port (23) of the throttle body housing (20).
In another specific embodiment, the cylinder-shaped block (31) of the cylindershaped valve assemble (30) is further constructed with the rotation control track (37) at the left side of the cylinder-shaped block (31) to control and limit the rotation degree of the cylinder-shaped block (31) from 0° to 90°.
Claims
1. A throttle body (10) for motorcycle comprising: i) a throttle body housing (20) comprises a central casing (21), having:
- a cylinder-shaped chamber (27) constructed at the internal center the central casing (21) with a flow way crossing through the cylindershaped chamber (27);
- a round-shaped chamber entrance (24) constructed on the right side of the cylinder-shaped chamber (27);
a tubular-shaped air inlet port (22) constructed in front of the cylindershaped chamber (27);
- a tubular-shaped air and fuel outlet port (23) constructed at the back of the cylinder-shaped chamber (27);
a round-shaped valve slot (25) constructed on the left side of the cylinder-shaped chamber (27); and
- a fuel inlet channel (26) constructed at the back of the cylinder-shaped chamber (27) but in front of the tubular-shape air and fuel outlet port (23); ii) a cylinder-shaped valve assemble (30) comprises:
- a cylinder-shaped block (31) with curved edge (38);
- a cylindrical opening (32) constructed in the middle part of the cylinder-shaped block (31) crossing through the entire body of the cylinder-shaped block (31);
- a right shaft (33) constructed at the right side center of the cylindershaped block (31) and built along an axis transverse to the axis of the cylindrical opening (32);
- a left shaft (34) constructed at the left side center of the cylindershaped block (31) and built along an axis transverse to the axis of the cylindrical opening (32);
- a right cylindrical plug (35) constructed at the right side center of the cylinder-shaped block (31);
- a left cylindrical plug (36) constructed at the left side center of the cylinder-shaped block (31); and
- a rotation control track (37) constructed at the left side of the cylindershaped block (31) to control and limit the rotation degree of the cylinder-shaped block (31) from 0° to 90°; iii) the valve cover plate (40) comprises:
- a round-shaped disc body (41);
- a disc center slot (42) constructed at the right side center of the roundshaped disc body; and
- a round-shaped hollow disk (43) constructed at the left side center of the round-shaped disc body (41); characterized in that a) the cylinder-shaped valve assemble (30) is mounted within the cylindershaped chamber (27) of the central casing (21) for rotation concentrically within cylindrical surfaces. More particularly, the cylinder-shaped valve assemble (30) is mounted within the cylinder-shaped chamber (27) of the central casing (21) to rotate about a fixed vertical axis and without substantial vertical movement so that the aforementioned clearance between the cylinder-shaped valve assemble (30) and the cylinder-shaped chamber (27) of the central casing (21) is maintained constant; b) the left shaft (34) and the left cylindrical plug (36) of the cylinder-shaped valve assemble (30) are mounted on round-shaped valve slot (25) of the throttle body housing (20);
c) the disc center slot (42) of the valve cover plate (40) is mounted on the right shaft (33) and right cylindrical plug (35) of the cylinder-shaped valve assemble (30). d) at the air flow open position, the cylindrical opening (32) of the cylindershaped valve assemble (30) is rotated aligned with the tubular-shaped air inlet port (22) and the tubular-shaped air and fuel outlet port (23) of the throttle body housing (20); and e) at the air flow close position, the cylindrical opening (32) of the cylindershaped valve assemble (30) is rotated 90° disaligned with the tubular-shaped air inlet port (22) and the tubular-shaped air and fuel outlet port (23) of the throttle body housing (20).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI2018703854 | 2018-10-18 | ||
| MYPI2018703854 | 2018-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020080928A1 true WO2020080928A1 (en) | 2020-04-23 |
Family
ID=70284275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/MY2019/000041 WO2020080928A1 (en) | 2018-10-18 | 2019-09-26 | A motorcycle throttle body |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2020080928A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047963A (en) * | 2021-03-31 | 2021-06-29 | 湛江德利车辆部件有限公司 | Throttle valve body assembly and airflow control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5749335A (en) * | 1996-07-15 | 1998-05-12 | Ford Global Technologies, Inc. | Barrel throttle valve |
| US5765529A (en) * | 1995-08-30 | 1998-06-16 | Hyundai Motor Company | Wireless control system of a throttle valve for automobiles |
| US20110120414A1 (en) * | 2009-11-24 | 2011-05-26 | Quantz Norman G | Rotary Throttle Valve Carburetor |
| EP2388457A1 (en) * | 2010-05-19 | 2011-11-23 | Magneti Marelli S.p.A. | Throttle valve for an internal combustion engine with eccentric shutter |
| US20140352657A1 (en) * | 2013-06-03 | 2014-12-04 | C. Thomas Waits | Centerflow throttle valve |
-
2019
- 2019-09-26 WO PCT/MY2019/000041 patent/WO2020080928A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5765529A (en) * | 1995-08-30 | 1998-06-16 | Hyundai Motor Company | Wireless control system of a throttle valve for automobiles |
| US5749335A (en) * | 1996-07-15 | 1998-05-12 | Ford Global Technologies, Inc. | Barrel throttle valve |
| US20110120414A1 (en) * | 2009-11-24 | 2011-05-26 | Quantz Norman G | Rotary Throttle Valve Carburetor |
| EP2388457A1 (en) * | 2010-05-19 | 2011-11-23 | Magneti Marelli S.p.A. | Throttle valve for an internal combustion engine with eccentric shutter |
| US20140352657A1 (en) * | 2013-06-03 | 2014-12-04 | C. Thomas Waits | Centerflow throttle valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047963A (en) * | 2021-03-31 | 2021-06-29 | 湛江德利车辆部件有限公司 | Throttle valve body assembly and airflow control method |
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