CN100357572C

CN100357572C - Double-piston engine

Info

Publication number: CN100357572C
Application number: CNB2005100231577A
Authority: CN
Inventors: 庄才福
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-07
Filing date: 2005-01-07
Publication date: 2007-12-26
Anticipated expiration: 2025-01-07
Also published as: CN1800595A

Abstract

The present invention provides a double-piston engine which aims to improve the air exchanging effect of a conventional two-stroke engine. The present invention comprises a cylinder and a piston igniting device. A distance device and a power transmission device are additionally arranged between an air inlet and an air outlet. The top part of a piston is provided with a small piston which is provided with the air inlet, and a cylinder cover is provided with a small cylinder connected with a power transmission mechanism. The present invention changes the air inlet and the air outlet on a cylinder wall of the conventional two-stroke engine into air outlets, and the air inlet is arranged on the small piston to increase the distance between the air inlet and the air outlet. Thus, the purpose of identifying the air inlet and the air outlet order and definition is obtained. Thus, the present invention can obtain the advantages of fuel saving, power increase, simple technical structure, easy modification and obvious economic benefit.

Description

Double piston engine

Technical field

The present invention relates to a kind of motor, particularly a kind of by changing suction port and relief opening increase standoff distance, venting priority, and volume of cylinder difference are to improve conventional two stroke engine ventilation effect.

Background technique

Various power equipments in the world today, mostly used motor is internal-combustion engine, and internal-combustion engine has the branch of conventional two-stroke and conventional four-stroke.By the conventional two stroke engine of what, though the air-exchanging structure of air inlet and exhaust is simple, poor effect, so conventional four stroke engine has been arranged again, ventilation effect greatly improves, but must dispose the ventilation transmission device, technical sophistication still is a blemish in an otherwise perfect thing.

Purpose of the present invention, it is simple as conventional two stroke engine to provide a kind of air-exchanging structure, and ventilation effect is as conventional four kinds of effective double piston engines of journey motor.

To achieve these goals, double piston engine provided by the invention is based on conventional two stroke engine, suction port and relief opening that it is opened on cylinder wall all change relief opening into, install small piston additional at piston head in addition, the small piston center becomes tube shape to be communicated with original piston, becomes gas-entered passageway, end at small piston drives gas port into again, install little cylinder on original cylinder head additional, small piston is also done synchronous to-and-fro motion when reciprocating motion of the pistons, by what first; The far and near can regulate of the distance of the door of suction port and relief opening, second;

Time order and function can regulate between air inlet and the exhaust, the 3rd; Volume size can regulate between crankcase is found time and cylinder is found time.By above-mentioned 3 best allotments, can accomplish the combustion gas abundance at last, do not have leak, the waste gas emptying, realize improving power, fuel saving, purpose easy to manufacture.

Description of drawings:

Below in conjunction with accompanying drawing embodiments of the invention are elaborated:

Fig. 1 is the structural representation of double piston engine of the present invention

Fig. 2 is the sectional view of the cylinder of double piston engine shown in Figure 1 along horizontal plane

Fig. 3 is the sectional view of the cylinder of double piston engine shown in Figure 1 along left surface

Embodiment:

With reference to Fig. 1, double piston engine of the present invention is an a kind of cylinder two-stroke petrol engine, its cylinder divides big cylinder 2, stingy cylinder 4, spark plug 14, waste gas exhaust pipe 19, crankcase 9, mixing air suction tude 8, power-transmitting unit are by inertial flywheel 10 and flywheel power axle 15, and ignition magneto 11 is formed.

Concrete structure and function are referring to Fig. 2, when flywheel power axle 15 rotates, big piston 1, small piston 3 just is moved to the left, close relief opening and suction port not busy, mixing air pressurized in the big cylinder 2, when big piston 1 moves to big cylinder 2 tops, when moving right again, spark plug 14 is subjected to ignition magneto 11 impulsive current, produces spark, the mixing air that ignites blast work done, with big piston 1, small piston 3 is pushed right motion to, and power by flywheel power axle 15, is driven inertial flywheel 10 and continues rotation, then relief opening 6 is opened, put than originally by what relief opening 6 and to be twice, waste gas is discharged rapidly, forms vacuum, mixing air pressure increases in the crankcase 9, suction port is opened on the small piston 3, and mixing air enters big cylinder 2 by gas-entered passageway 7, the one side inflation, one side is displaced waste gas, along with the waste gas emptying, mixing air suctions, and big piston 1 small piston 3 is again to left movement, close relief opening 6 not busy, suction port 5 also closes the spare time after entering stingy cylinder 4, and dress seal ring 20 on dress asbestos graphite grazing material 18 and the small piston will be pumped into the part vacuum simultaneously in the little cylinder in the crankcase 9, inspiration mixing air, realize continuous crankmotion.

By top description, can find the different of double piston engine provided by the invention and conventional two stroke engine maximum, exactly by driving gas port 5 on the small piston 3 into, all change suction port and relief opening original on big cylinder 2 cylinder walls into relief opening 6, by the what small piston 1 partly volume that accounted in the big cylinder 2, cause the volume of finding time in the crankcase 9, the volume of finding time in the big big cylinder 2 of what, improve so inflation is renderd a service, moreover big piston two ends are all adorned

seal ring

12,13 also favourable whats raising distribution effects; Make the waste gas emptying, mixing air suctions, and does not leak.Other all technical patterns all same as before.So reform easily, effect is obvious.

Claims

1, a kind of double piston engine, comprise cylinder, piston, ignition mechanism, actuating unit, ignition mechanism can make fuel burn in cylinder combustion, thereby promote piston to-and-fro motion in cylinder, it is characterized in that: piston head is equipped with small piston, and little cylinder is housed on the cylinder head, has suction port on the small piston, all make suction port on the conventional two stroke engine cylinder wall and relief opening into relief opening, described piston and power-transmitting unit link.

2, double piston engine as claimed in claim 1 is characterized in that the Push And Release of suction port on the small piston directly using reciprocating motion of the pistons, and suction port is implemented Push And Release, does not adorn transmission device in addition.