CN201202505Y

CN201202505Y - Cylinder of motorcycle engine

Info

Publication number: CN201202505Y
Application number: CNU2008200888732U
Authority: CN
Inventors: 李义
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-16
Filing date: 2008-06-16
Publication date: 2009-03-04
Anticipated expiration: 2018-06-16

Abstract

The utility model discloses a cylinder for a motorcycle engine and comprises a shell body; the shell body is provided with two cam transmission chambers, a combustion chamber, as well as an exhaust pipe interface and a carburetor pipe interface which are communicated with the combustion chamber; a spark plug hole is arranged inside the combustion chamber; the two cam transmission chambers are symmetrically arranged at the left side and the right side of the shell body; and two valve piston holes communicated with the combustion chamber are respectively arranged in each cam transmission chamber. As the utility model adopts a dual-cam and double-intake and exhaust valve structure, the instantaneous velocity of a traveling motorcycle can be further enhanced, and the rapid power increasing at a high speed can be ensured; at the same time, the power and the motivity are also increased; compared with the original product, the overall structure is more concise and compact, the distribution is more reasonable, and the power is more lasting.

Description

A kind of cylinder of motorcycle engine

Technical field

The utility model relates to the cylinder of the engine fittings of a kind of automobile, motorcycle, particularly a kind of motorcycle engine.

Background technique

Cylinder is " source " that produces driving force, no matter your automobile, motorcycle can reach how high speed, can climb great slope, can draw multiple goods, all power are all from cylinder internal, all be because fuel promotes piston or cam does straight line motion or rotatablely move in cylinder internal burning back, and then by connecting rod, bent axle, speed changer, transmission shaft or gear at last with transmission of power to wheel, thereby propelling vehicle, motorcycle burn the wind.The many employings of combustion chamber of air cylinder of existing motorcycle singly advance singly to go out or twoly advance singly to go out four-stroke, single cam drive, in general, under the equal discharge capacity situation, valve is many more, intake and exhaust efficient is good more, just as a people runs, when tiring out out of puff, the breathing of need magnifying, mostly traditional motor is intake valve of every cylinder and an exhaust valve, and this two valve distribution mechanisms are relatively simple, low cost of manufacture, the cylinder low-speed performance of this structure is better, but because valve quantity is few, the air inlet sectional area that singly advances single exhaust valve when high speed is relatively little, causes intake efficiency to reduce, engine combustion is insufficient, efficient reduces, thereby increasing progressively fast of power had absolute influence, and the operation of a machine frequency is had a significant impact.

Summary of the invention

Problem to be solved in the utility model just provides a kind of cylinder of motorcycle engine, the exhaust efficiency height, and the influence when the existing cylinder intake and exhaust of solution increase progressively fast to power improves power character.

In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: a kind of cylinder of motorcycle engine, comprise housing, housing is provided with cam drive chamber, firing chamber and the exhaust port that is communicated with the firing chamber and carburetion interface tube, be provided with spark-plug hole in the firing chamber, it is characterized in that: described cam drive number of chambers order is two, indoor two the valve piston holes that are communicated with the firing chamber that are respectively equipped with of each cam drive.

Have axis hole on the housing between described two cam drive chambers.

Described two cam drive chambers are symmetricly set on the housing left and right sides.

Described valve piston hole is divided into exhaust port and inlet hole, and two row about exhaust port and inlet hole are arranged into form " V " shape structure.

Described housing is being provided with the joint that is connected with motor with the corresponding end in cam drive chamber.

The utility model adopts the beneficial effect after the technique scheme: adopt the double-cam structure can make motorcycle in motion instantaneous velocity be further enhanced, increasing progressively fast of power is guaranteed during high speed, also increased power and power simultaneously; Single combustion chamber, the air valve structure that goes with each other all the time make the integral body of product than product is more succinct, compact before, and it is more reasonable to distribute, and power is more lasting.

Description of drawings

Fig. 1 is a three-dimensional structure diagram of the present utility model;

Fig. 2 is the worm's eye view of Fig. 1;

Fig. 3 is the plan view of Fig. 1.

Embodiment

As Fig. 1, Fig. 2, the cylinder of a kind of motorcycle engine shown in Figure 3, comprise housing 1, housing 1 is provided with cam drive chamber 2, firing chamber 7 and exhaust port 5 that is communicated with firing chamber 7 and carburetion interface tube 4, be provided with spark-plug hole 6 in the firing chamber 7, cam drive chamber 2 numbers are two, be symmetricly set on housing 1 left and right sides, on the housing between two cam drive chambers 21, also have axis hole 11, be respectively equipped with two valve piston holes 21 that are communicated with firing chamber 7 in each cam drive chamber 2, valve piston hole 21 is divided into exhaust port and inlet hole, two row about exhaust port and inlet hole are arranged into, form " V " shape structure, gas enters firing chamber 7 by Carburetor interface 4, carry out explosion by the plug ignition that is arranged in the spark-plug hole 6, drive is arranged on the piston acting in inlet hole and the exhaust port, piston drives the cam rotation that is arranged in the cam drive chamber 2 again, the concrete movement process of piston and cam is known for those skilled in the art, be not described further at this, cam end portion can be equipped with small gear, with the gearwheel routing motion of installing on the axis hole 11, drive chain transmission, housing is being provided with the joint 8 that is connected with motor with cam drive chamber 2 corresponding ends, but the fit on motor, chain is connected to motor and finishes startup.

Claims

1, a kind of cylinder of motorcycle engine, comprise housing (1), housing (1) is provided with cam drive chamber (2), firing chamber (7) and exhaust port (5) that is communicated with firing chamber (7) and carburetion interface tube (4), be provided with spark-plug hole (6) in the described firing chamber (7), it is characterized in that: described cam drive chamber (2) number is two, is respectively equipped with two the valve piston holes (21) that are communicated with firing chamber (7) in each cam drive chamber (2).

2, the cylinder of a kind of motorcycle engine according to claim 1 is characterized in that: have axis hole (11) on the housing (1) between described two cam drive chambers (2).

3, the cylinder of a kind of motorcycle engine according to claim 1 is characterized in that: described two cam drive chambers (2) are symmetricly set on housing (1) left and right sides.

4, the cylinder of a kind of motorcycle engine according to claim 1 is characterized in that: described valve piston hole (21) is divided into exhaust port and inlet hole, and two row about exhaust port and inlet hole are arranged into form " V " shape structure.

5, the cylinder of a kind of motorcycle engine according to claim 1 is characterized in that: described housing (1) is being provided with the joint (8) that is connected with motor with cam drive chamber (2) corresponding end.