Crankshaft structure for model engine
A crankshaft structure for a model engine contains a body and at least one fin member. The body is formed in an elongated shaft shape and includes a cam disc disposed on a distal end thereof and a connecting shaft extending outwardly from an end surface of the cam disc, a window defined on a middle section thereof, and a channel formed therein and passing through the end surface of the cam disc so as to inhale and exhaust mixed oil gas. The at least one fin member is mounted at a position of the channel where corresponds to the window.
The present invention relates to a crankshaft structure for a model engine in which a tilted guiding face of the counterweight block transforms the vertex into a push force so as to facilitate air input and motor output smoothly.
BACKGROUND OF THE INVENTIONReferring to
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
SUMMARY OF THE INVENTIONThe primary object of the present invention is to provide a crankshaft structure for a model engine in which a tilted guiding face of the counterweight block transforms the vertex into a push force so as to facilitate air input and motor output smoothly.
To obtain the above objective, a crankshaft structure for a model engine provided by the present invention contains: a body and at least one fin member.
The body is formed in an elongated shaft shape and includes a cam disc disposed on a distal end thereof and a connecting shaft extending outwardly from an end surface of the cam disc, a window defined on a middle section thereof, and a channel formed therein and passing through the end surface of the cam disc so as to inhale and exhaust mixed oil gas.
The at least one fin member is mounted at a position of the channel where corresponds to the window.
With reference to
The body 10 is formed in an elongated shaft shape and includes a cam disc 11 disposed on a distal end thereof and a connecting shaft 12 extending outwardly from an end surface of the cam disc 11, a window 13 defined on a middle section thereof, and a channel 14 formed therein and passing through the end surface of the cam disc 11 so as to inhale and exhaust mixed oil gas.
The at least one fin member 20 is mounted at a position of the channel 14 where corresponds to the window 13 and includes a front fringe 201 extending obliquely upward and a rear fringe 202 extending vertically downwardly from the front fringe 201, such that a vortex produces to refine oil molecules after the mixed oil gas is rotated by the body 10 (as shown in
Referring further to
While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments which do not depart from the spirit and scope of the invention.
Claims
1. A crankshaft structure for a model engine comprising:
- a body formed in an elongated shaft shape and including a cam disc disposed on a distal end thereof and a connecting shaft extending outwardly from an end surface of the cam disc, a window defined on a middle section thereof, and a channel formed therein and passing through the end surface of the cam disc so as to inhale and exhaust mixed oil gas;
- at least one fin member mounted at a position of the channel where corresponds to the window;
- wherein the at least one fin member includes a counterweight block fixed on a bottom end thereof so as to match with a weight of a model engine and connecting with the channel;
- the counterweight block has a tilted guiding face arranged on a top side thereof and obliquely extending toward the cam disc and has a first chamber and a second chamber spaced from the first chamber so as to guide and push the mixed oil gas separately.
2. The crankshaft structure for the model engine as claimed in claim 1, wherein the at least one fin member includes a front fringe extending obliquely upward and a rear fringe extending vertically downwardly from the front fringe.
3. (canceled)
4. (canceled)
Type: Application
Filed: Aug 26, 2013
Publication Date: Feb 26, 2015
Inventor: NAI WEN, LIU (Taichung City)
Application Number: 13/975,377
International Classification: F02B 75/34 (20060101);