EP3971399A1 - Decompressor for motorcycles - Google Patents
Decompressor for motorcycles Download PDFInfo
- Publication number
- EP3971399A1 EP3971399A1 EP21382837.9A EP21382837A EP3971399A1 EP 3971399 A1 EP3971399 A1 EP 3971399A1 EP 21382837 A EP21382837 A EP 21382837A EP 3971399 A1 EP3971399 A1 EP 3971399A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- decompressor
- valve element
- motorcycles
- spark plug
- housing
- 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- Withdrawn
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Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/004—Aiding engine start by using decompression means or variable valve actuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
Definitions
- the present invention relates to a decompressor for motorcycles, which facilitates the starting of the motorcycle on which it is installed.
- decompressors on motorcycles is known to facilitate the starting of these motorcycles.
- the decompressors used on motorcycles are devices that are attached to the motorcycle engine to facilitate their starting.
- the decompressors consist of a small additional valve or a small cam that acts directly on the exhaust valve of the engine.
- the engine When the decompressor is actuated, the engine can rotate without compression and therefore without effort. When a certain rotation regime has been reached, the decompressor is released and the inertia of the engine is enough to overcome the compression phase, allowing the engine to start.
- a drawback of the known decompressors that the present invention is intended to solve is that the engines must be designed to allow mounting of the decompressors.
- motorcycle engines that are not designed for mounting decompressors, so that they do not allow mounting these decompressors.
- an objective of the present invention is to provide a decompressor for motorcycles which manages to solve the aforementioned drawbacks, presenting other advantages which will be described below.
- the decompressor for motorcycles according to the present invention comprises:
- the housing for the spark plug is a through hole such that the spark plug passes through the decompressor when it is placed in its use position.
- valve element is in contact with a first spring which pushes the valve element.
- the decompressor for motorcycles according to the present invention also preferably comprises a retaining element, which retains the valve element in the first position, and the retaining element is pushed by a second spring.
- the decompressor for motorcycles according to the present invention also preferably comprises a first conduit provided with a seat, which in the first position the valve element is separated from the seat of the first conduit and in the second position the valve element is positioned on said seat of the first conduit, closing the first conduit.
- valve element is spherical.
- the decompressor for motorcycles according to the present invention also preferably comprises a fixing nut provided with a seat for the valve element and a housing for the first spring.
- the decompressor for motorcycles it is possible to mount it on any motorcycle engine, even on engines which are not designed to include a compressor. This is because the design of the decompressor allows it to be mounted in the space designed for the spark plug unit.
- the decompressor for motorcycles is mounted on the engine 1 of a motorcycle in the usual position where a spark plug 2 is fitted.
- the decompressor has a housing 3, in particular in the form of a through hole, for accommodating the spark plug 2, passing completely through the decompressor.
- the decompressor 14 has a shape similar to a bushing and inside it houses a valve element 4 which can be placed in the two positions shown in Figures 2 and 3 .
- said valve element 4 is a sphere, which is pushed by a first spring 5.
- Said first spring 5 is housed in a housing 8 of a fixing nut 9, which also comprises a seat 10 for said valve element 4.
- the decompressor also comprises a retaining element 6, the operation of which will be explained below, which is pushed by a second spring 7.
- the decompressor comprises a first, second and third conduits 11, 12, 13.
- valve element 4 In the first position of the valve element 4, shown in figure 2 , the valve element 4 is retained by the retaining element 6, so that it is held away from the first conduit 11, leaving it open.
- valve element 4 In the second position of the valve element 4, shown in figure 3 , the valve element 4 has been displaced to the left, according to the direction of this figure 3 , in contact with a seat 15 at one end of the first conduit 11, closing it.
- this displacement closing the first conduit 11 is performed automatically by the pressure generated in the compression chamber of the engine, once said pressure exceeds a predetermined value.
- valve element 4 described acts is only an example. There can be many different ways to open and ensure closure of the passage between the engine compression chamber and the outside. The important thing is to reduce the pressure in the chamber to make it easier to turn the engine during start-up, as in conventional decompressors.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The decompressor (14) for motorcycles comprises a valve element (4) movable between a first and second positions, and it comprises a housing (3) for a spark plug (2). Preferably, the housing (3) for the spark plug (2) is a through hole and the valve element (4) is in contact with a first spring (5) which pushes the valve element (4).
It permits to mount it on any motorcycle engine, even on engines which are not designed to include a compressor. This is because the design of the decompressor allows it to be mounted in the space designed for the spark plug unit.
Description
- The present invention relates to a decompressor for motorcycles, which facilitates the starting of the motorcycle on which it is installed.
- The use of decompressors on motorcycles is known to facilitate the starting of these motorcycles.
- The decompressors used on motorcycles are devices that are attached to the motorcycle engine to facilitate their starting.
- Usually, the decompressors consist of a small additional valve or a small cam that acts directly on the exhaust valve of the engine.
- When the decompressor is actuated, the engine can rotate without compression and therefore without effort. When a certain rotation regime has been reached, the decompressor is released and the inertia of the engine is enough to overcome the compression phase, allowing the engine to start.
- A drawback of the known decompressors that the present invention is intended to solve is that the engines must be designed to allow mounting of the decompressors. In addition, there are motorcycle engines that are not designed for mounting decompressors, so that they do not allow mounting these decompressors.
- Therefore, an objective of the present invention is to provide a decompressor for motorcycles which manages to solve the aforementioned drawbacks, presenting other advantages which will be described below.
- The decompressor for motorcycles according to the present invention comprises:
- a valve element movable between a first and second positions,
- wherein the decompressor comprises a housing for a spark plug.
- According to a preferred embodiment, the housing for the spark plug is a through hole such that the spark plug passes through the decompressor when it is placed in its use position.
- Advantageously, the valve element is in contact with a first spring which pushes the valve element.
- Furthermore, the decompressor for motorcycles according to the present invention also preferably comprises a retaining element, which retains the valve element in the first position, and the retaining element is pushed by a second spring.
- The decompressor for motorcycles according to the present invention also preferably comprises a first conduit provided with a seat, which in the first position the valve element is separated from the seat of the first conduit and in the second position the valve element is positioned on said seat of the first conduit, closing the first conduit.
- According to a preferred embodiment, the valve element is spherical.
- The decompressor for motorcycles according to the present invention also preferably comprises a fixing nut provided with a seat for the valve element and a housing for the first spring.
- With the decompressor for motorcycles according to the present invention it is possible to mount it on any motorcycle engine, even on engines which are not designed to include a compressor. This is because the design of the decompressor allows it to be mounted in the space designed for the spark plug unit.
- For a better understanding of what has been explained above, some drawings are included in which, schematically and only as a non-limiting example, a practical case of embodiment is represented.
-
Figure 1 is a cross-sectional view of the decompressor for motorcycles according to the present invention mounted on a motorcycle engine with a spark plug; -
Figures 2 and3 are sectional views of the decompressor for motorcycles in its operating positions. - As shown in
Figure 1 , the decompressor for motorcycles, indicated in general byreference numeral 14, is mounted on theengine 1 of a motorcycle in the usual position where aspark plug 2 is fitted. For this purpose, the decompressor has ahousing 3, in particular in the form of a through hole, for accommodating thespark plug 2, passing completely through the decompressor. - The
decompressor 14 according to the present invention has a shape similar to a bushing and inside it houses avalve element 4 which can be placed in the two positions shown inFigures 2 and3 . - According to the embodiment shown, said
valve element 4 is a sphere, which is pushed by afirst spring 5. Saidfirst spring 5 is housed in ahousing 8 of afixing nut 9, which also comprises aseat 10 for saidvalve element 4. - In addition, the decompressor also comprises a
retaining element 6, the operation of which will be explained below, which is pushed by asecond spring 7. - To perform its function of assisting in starting the motorcycle, the decompressor comprises a first, second and
third conduits - In the first position of the
valve element 4, shown infigure 2 , thevalve element 4 is retained by theretaining element 6, so that it is held away from thefirst conduit 11, leaving it open. - In the second position of the
valve element 4, shown infigure 3 , thevalve element 4 has been displaced to the left, according to the direction of thisfigure 3 , in contact with aseat 15 at one end of thefirst conduit 11, closing it. - In this embodiment, this displacement closing the
first conduit 11 is performed automatically by the pressure generated in the compression chamber of the engine, once said pressure exceeds a predetermined value. - It should be noted that the way in which the
valve element 4 described acts is only an example. There can be many different ways to open and ensure closure of the passage between the engine compression chamber and the outside. The important thing is to reduce the pressure in the chamber to make it easier to turn the engine during start-up, as in conventional decompressors. - Although reference has been made to a specific embodiment of the invention, it is obvious to a person skilled in the art that the motorcycle decompressor described is susceptible of numerous variations and modifications, and that all the details mentioned can be replaced by other technically equivalent ones, without departing from the scope of protection defined by the appended claims.
Claims (8)
- Decompressor (14) for motorcycles, comprising:a valve element (4) movable between a first and second positions,characterized in that the decompressor (14) comprises a housing (3) for a spark plug (2).
- Decompressor (14) for motorcycles according to claim 1, wherein the housing (3) for the spark plug (2) is a through hole.
- Decompressor (14) for motorcycles according to claim 1, wherein the valve element (4) is in contact with a first spring (5) which pushes the valve element (4).
- Decompressor (14) for motorcycles according to any one of the preceding claims, also comprising a retaining element (6), which retains the valve element (4) in the first position.
- Decompressor (14) for motorcycles according to claim 4, wherein the retaining element (6) is pushed by a second spring (7).
- Decompressor (14) for motorcycles according to any one of the preceding claims, also comprising a first duct (11) provided with a seat (15), such that in the first position the valve element (4) is separated from the seat (15) of the first duct (11) and in the second position the valve element (4) is positioned on said seat (15) of the first duct (11), closing the first duct (11).
- Decompressor (14) for motorcycles according to claim 1, 3, 4 or 6, wherein the valve element (4) is spherical.
- Decompressor (14) for motorcycles according to any one of the preceding claims, also comprising a fixing nut (9) provided with a seat (10) for the valve element (4) and a housing (8) for the first spring (5).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES202032014U ES1257995Y (en) | 2020-09-16 | 2020-09-16 | Decompressor for motorcycles |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3971399A1 true EP3971399A1 (en) | 2022-03-23 |
Family
ID=73688472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21382837.9A Withdrawn EP3971399A1 (en) | 2020-09-16 | 2021-09-16 | Decompressor for motorcycles |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3971399A1 (en) |
ES (1) | ES1257995Y (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1492007A (en) * | 1921-06-17 | 1924-04-29 | Herman Gumbinsky | Spark plug |
US2490646A (en) * | 1946-12-16 | 1949-12-06 | Murphy Eduardo | Spark plug for internal-combustion motors |
US4326145A (en) * | 1980-01-28 | 1982-04-20 | The Toro Company | Compression relief adapter |
US7073471B1 (en) * | 2005-09-27 | 2006-07-11 | Gregory Damian Mead | Apparatus and method for improving engine performance |
-
2020
- 2020-09-16 ES ES202032014U patent/ES1257995Y/en active Active
-
2021
- 2021-09-16 EP EP21382837.9A patent/EP3971399A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1492007A (en) * | 1921-06-17 | 1924-04-29 | Herman Gumbinsky | Spark plug |
US2490646A (en) * | 1946-12-16 | 1949-12-06 | Murphy Eduardo | Spark plug for internal-combustion motors |
US4326145A (en) * | 1980-01-28 | 1982-04-20 | The Toro Company | Compression relief adapter |
US7073471B1 (en) * | 2005-09-27 | 2006-07-11 | Gregory Damian Mead | Apparatus and method for improving engine performance |
Also Published As
Publication number | Publication date |
---|---|
ES1257995U (en) | 2020-12-09 |
ES1257995Y (en) | 2021-03-02 |
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Effective date: 20220924 |