US 20050217222 A1
An air cleaner for engines includes a fender provided on the side of the air inlet and the air passage, and a hollow tube adapted to the air inlet to prevent weeds, dust, and pebbles from entering into the air cleaner for enabling clean air to be delivered to the engine continuously and protecting the carburetor from being contaminated by foreign matter.
7. An air cleaner for an engine of a mower comprising a case, a cover mounted on said case, and an air cleaner element accommodated in a space defined by said case and said cover; wherein at least an air inlet is provided on one side of said case, a hollow tube extending from said side of said case and communicating with said air inlet, a supplementary air inlet provided at a bottom of said case to admit air and to function as a drain, a locking member provided on said case and having a bottom provided with an air outlet, said air cleaner element being mounted on said locking member, an air passage provided below said case, a hollow tube integrally formed with said bottom of said case and communicating with said air passage, a fender provided by said air passage below said case, said locking member being provided with two locking posts going upwardly through said air cleaner element to engage with two fasteners thereby keeping said air cleaner element and said cover in place.
8. The air cleaner for an engine of a mower as claimed in
(a) Technical Field of the Invention
The present invention is related to an air cleaner for an engine adapted to a power mower, and more particularly, to one that prevents foreign matter such as weeds, dust, and pebbles from being sucked into the air cleaner to enable clean air to be fed to the engine continuously and prevent the foreign matter from contaminating the carburetor of the engine.
(b) Description of the Prior Art
The air cleaner for engines adapted to power mowers generally available in the market functions to introduce fresh air to be mixed with fuel for combustion and explosion in the engine to generate power. As illustrated in
The air cleaner element 22 has a hollow center at its bottom for the insertions of the locking member 213 and both locking pillars 215 from the case 21. A trap 221 in the form of a piece of filtration cotton or paper is provided to the peripheral of the air cleaner element 22. A resilient washer 222 is provided on the lower circumference of the air cleaner element 22, and a locking hole 223 is disposed above the air cleaner element 22 at where in relation to the location of the locking pillar 215.
The cover 23 is a rectangular shape to cover up the case 21 and a through hole 231 is provided on top of the cover 23 in relation to the location of the locking pillar 215 to permit insertion of a fastener 24 for locking purposes.
As illustrated in
When the engine 14 is operating as illustrated in
However, foreign matter including weeds, dust and pebbles are usually present in the air fed to the power mower in operation. When the air around the air cleaner 2 enters into the case 21 through the air inlet 211 and the supplementary air inlet 212, the foreign matter will be usually sucked into the case 21 at the same time, and weeds and dust of a smaller size may pass through the air inlet 211 and the supplementary air inlet 212 may be intercepted by the trap 221; but larger sized matter may block the air inlet 211 resulting in a higher concentration of air-fuel mixture to discharge the higher volume of exhaust. Furthermore, it requires the user to remove the air cleaner 2 for cleaning. In serious cases, the engine will fail and the foreign matter will contaminate the carburetor 3.
As described above, the air inlet 211 is vulnerable to being blocked by weeds and dust resulting in an insufficient supply of fresh air to the carburetor 3 to discharge higher volume of exhaust. Frequent maintenance of the air filter also presents an inconvenience for the user.
The primary purpose of the present invention is to provide an engine air cleaner for a power mower to supply clean air continuously to the carburetor and prevent weeds, dust, and pebbles from being sucked into the air cleaner and thereby contaminating the carburetor. To achieve this purpose, a fender is provided on the side of the air inlet and air passage of the air cleaner to prevent weeds, dust, and chisels from being sucked into the air filter.
The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
The air cleaner element 42 has a hollow center bottom to merely receive the placement of the locking member 414 and the locking pillars 416 of the case 41. A trap 421 usually in the form of a piece of filtration cotton or paper is provided to the peripheral of the air cleaner element 42. A resilient washer is mounted to the lower circumference of the air cleaner element 42 and a locking hole 423 is provided on top of the air cleaner element 42 at where in relation to the locking pillar 416.
The rectangular cover 43 properly covers up the case 41 and a through hole 431 is provided on top of the cover 43 at where in relation to the locking pillar 416 to permit the insertion of a fastener 44 for locking purpose.
As illustrated in
When the engine 61 is operating as illustrated in
Now referring to
It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.