WO2016004860A1

WO2016004860A1 - Two-stroke gear shaft engine for power device

Info

Publication number: WO2016004860A1
Application number: PCT/CN2015/083501
Authority: WO
Inventors: 孙书伟
Original assignee: 孙书伟
Priority date: 2014-07-10
Filing date: 2015-07-07
Publication date: 2016-01-14
Also published as: CN105257405A

Abstract

A two-stroke gear shaft engine for a power device, employing integrated pistons oppositely disposed in a horizontal direction; the middle position of the pistons (11) is provided with two rows of upper and lower racks (13) connected to a gear (15) on a power transmission shaft (10) having a half gear ring; one half of the peripheral surface of the gear (15) is provided with teeth thereon, and the other half is smooth; and the upper and lower racks (13) alternately engage with the gear (15) of the power transmission shaft (10), and push the power transmission shaft (10) to continuously conduct circular rotation in a direction, thus avoiding the defect of an unstable torque transmission of a traditional engine employing a combination of a connection rod with a bent axle. Two ends of the pistons (11) are provided with an air outlet (14) connected to an exhaust valve (12); and a waste gas is discharged via a housing air outlet (4) through the piston air outlet (14) bypassing a housing oil seal (7). The present invention solves the problems of engine oil leakage and non-environmentally friendly gas discharge resulting from a traditional two-stroke engine piston oil seal discharging the gas via a housing air outlet, and avoids the existing defects in the prior art of discharge and oil consumption.

Description

Two-stroke gear shaft engine for power plant

Technical field

The present invention relates to an engine, and in particular to a two-stroke gear shaft engine for a power unit such as an automobile, a ship or the like.

Background technique

At present, the engine used is a crankshaft engine that has been invented decades ago. Although the technology is mature, it is too old and there is no room for upgrading technology. The structure is complex, heavy, large, difficult to process, crankshaft friction loss, and because the crankshaft power arm is constantly changing, the power, torque, and speed outputs are pulsed, very unstable, with large vibration and low efficiency. As a two-stroke engine that has been eliminated, its power performance is better than that of a four-stroke engine. However, its fatal flaw is that the exhaust, fuel consumption and lubrication are not as good as the four-stroke engine. The reason is that the vent hole is opened in the cylinder wall, and it can only be lubricated by means of oil mixed with oil, plus the oil in the process of scavenging. Loss makes the two-stroke engine unable to meet environmental requirements, and scavenging losses have long been resolved in the era of electronic control. When the car enters the era of hybrid electric power, and the requirements for miniaturization and high power performance of the engine are higher, some automobile powers have re-innovated the two-stroke engine.

Summary of the invention

In order to solve the old product crankshaft engine structure is complex, heavy weight, large volume, large loss, low efficiency, power transmission is not stable, and the traditional two-stroke engine oil is not environmentally friendly. Further improvement of the two-stroke engine, using horizontally opposed integral pistons, with racks and The combination of the gears of the half-ring teeth converts the reciprocating motion of the piston into a circular motion of the power output shaft continuously in one direction, which solves the defect that the torque output of the conventional engine adopts the combination of the connecting rod and the crankshaft is unstable, and achieves the smooth power. Output. The creative method of opening the exhaust valve on the piston is to change the vent hole to the piston oil seal, so that the piston does not need to pass through the vent hole during the movement, and the oil is not required to be mixed with oil. The same lubrication method of stroke fundamentally solves the defects of emissions and fuel consumption in the prior art. At the same time, the crankshaft, camshaft, timing chain, etc. are eliminated, which greatly simplifies the structure and miniaturizes the volume. It combines the advantages of a rotary engine, a two-stroke engine and a four-stroke engine, and overcomes the defects of each of the three engines.

The present invention provides a two-stroke gear shaft engine for a power unit including a casing, a piston and an exhaust valve, the casing being provided with an air intake nozzle and an outer casing oil seal, and exhaust gas is installed at both ends of the piston In the door, an exhaust valve stop is installed in the piston, and the upper and lower rows of racks of the gear connected to the power output shaft are opened in the middle of the piston, and the exhaust valve is connected to the exhaust door stop.

Further, the rack and the gear alternately engage and disengage to complete a power cycle, and the power output shaft is rotated 360 degrees to convert the reciprocating motion of the piston into a circular motion of the power output shaft continuously in one direction.

Further, when the piston is about to run to the left and right dead ends, the exhaust valve is automatically smashed by the exhaust door stopper, and automatically closes under the action of a spring when leaving.

Preferably, the air intake nozzle adopts a method of continuously injecting air in a cylinder.

Further, exhaust holes are formed at both ends of the piston.

Further, the outer casing oil seal isolates the oil from the venting opening.

Preferably, a gear is mounted on the power output shaft, and the outer circumference of the gear is provided with teeth on one half and the other half is smooth.

The technical solution of the invention is that the integral piston is operated in a horizontally opposite manner, and a gear having a half ring tooth is mounted on the power output shaft, and two piston rows and a rack are arranged in the middle of the piston, and the two ends of the piston are opened. Piston venting port, piston rack connecting gear with half ring teeth. One half of the outer peripheral surface of the gear having the half ring teeth is provided with teeth, and the other half is smooth. When the piston runs to the left (right) stop point, the upper (lower) piston rack begins to engage with the toothed half turn of the gear, and the contact point of the lower (upper) piston rack with the gear begins exactly at the half-turn without the tooth. When the piston is disengaged, the piston works once, pushing the power output shaft to rotate the counterclockwise (reverse) hour hand by 180 degrees. When the piston runs to the right (left) stop point, the lower (upper) piston rack begins to engage with the toothed half turn of the gear, and the contact point of the upper (lower) piston rack and the gear begins exactly at the half-turn without the tooth. Disengaged, the piston rack and the gear alternately engage and disengage to complete a power cycle, and the power output shaft is rotated 360 degrees to convert the reciprocating motion of the piston into a circular motion of the power output shaft continuously in one direction. The utility model solves the defect that the torque output of the conventional engine adopts the combination of the connecting rod and the crankshaft is unstable, and achieves a smooth power output.

Piston exhaust holes are opened at both ends of the piston, and exhaust valves are installed at both ends of the piston. When the piston is about to run to the left (right) stop point, the right (left) exhaust valve is automatically knocked open by the exhaust door stopper. When leaving, it automatically closes under the action of the spring. When the right (left) exhaust valve is hit, the piston exhaust hole communicates with the outer casing exhaust hole, and the exhaust gas is exhausted through the outer casing oil seal through the outer casing oil seal through the piston exhaust hole. Instead of a conventional engine connecting the oil seal to the piston, the outer casing oil seal is attached to the outer casing. It acts to isolate the oil from the venting holes. The utility model solves the problem that the piston seal of the traditional two-stroke engine must leak the oil through the vent hole of the outer casing, and can only take the defect that the combustion method of the oil mixed with the oil is not environmentally friendly, With the same four-stroke lubrication method, the defects of the existing emissions and fuel consumption in the prior art are fundamentally solved.

The air intake nozzle is connected to the outer casing, and the mixed fuel is continuously immersed in the air to make the mixed fuel fully stratified and burned. Cancel the intake valve of the traditional engine. It not only ensures a sufficient amount of intake air, but also sweeps out the exhaust gas in the cylinder to save fuel while reducing the temperature inside the cylinder, achieving a multi-faceted effect.

The invention has the beneficial effects of eliminating the crankshaft, the camshaft, the timing chain and the like of the conventional engine, greatly reducing the weight and the volume, and making the structure more compact. Increased reliability, ease of processing, and reduced production and maintenance costs. The structure is simple and reliable, the vibration is small, the noise is small, and since the gear power arms are equal, the power, torque and speed output are linear, which is equivalent to the rotor engine, so it is very stable and has high work efficiency.

DRAWINGS

The invention will now be further described with reference to the drawings and examples.

Figure 1 is a front elevational view showing the structure of the engine;

Figure 2 is a schematic view of the engine casing;

Figure 3 is a schematic view of a live race and a valve structure;

Figure 4 is a power output shaft isometric view;

Figure 5 is an isometric view of the engine piston.

The figures are: spark plug 1, air intake nozzle 2, fuel intake nozzle 3, housing vent 4, housing oil seal 7, housing 8, exhaust valve stop 9, power take-off shaft 10, piston 11, row Valve 12, rack 13, exhaust hole 14, gear 15.

detailed description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The present invention is provided to enable a person skilled in the art to understand the present invention clearly, and the invention can be implemented according to the description herein. The drawings and the specific examples are not intended to limit the invention, and the scope of the invention is defined by the appended claims.

1 is a schematic view of the structure of the engine; FIG. 2 is a schematic view of the engine casing; FIG. 3 is a schematic view of the structure of the live race and the valve; FIG. 4 is a schematic view of the power output shaft; 1 to 3, the present invention provides a two-stroke gear shaft engine for a power unit including a casing 8, a piston 11 and an exhaust valve 12 on which an air intake nozzle 2 and an outer casing are mounted The oil seal 7 is provided with an exhaust valve 12 at both ends of the piston 11 , and both ends of the piston 11 are provided with an exhaust hole 14 . The piston 11 is provided with an exhaust valve stop 9 , and the piston 11 is connected with a connection power. The upper and lower rows of racks 13 of the gear 15 of the output shaft 10 are connected to the exhaust valve stopper 9.

Referring to FIG. 1, FIG. 3, FIG. 4 and FIG. 5, the rack 13 and the gear 15 are alternately engaged and disengaged to complete a power cycle, and the power output shaft 10 is rotated 360 degrees to convert the reciprocating motion of the piston 11 into the power output. The shaft 10 continuously moves in a circular direction in one direction.

Referring to Figs. 1 to 3, when the piston 11 is about to be operated to the right and left dead ends, the exhaust valve 12 is automatically smashed by the exhaust valve stopper 9, and is automatically closed by the spring when it is separated.

The air intake nozzle 2 described above employs a method of continuously injecting air in a cylinder.

Referring to Figures 1, 2 and 5, the outer casing oil seal 7 isolates the oil from the venting opening 14.

Referring to Figures 1 and 4, a gear 15 is mounted on the power output shaft 10, and the gear 15 is provided with teeth on one half of the outer peripheral surface and the other half is smooth.

The engine is divided into two combustion chambers, and the other end is compressed and the other end is compressed to perform work. The movement of the piston 11 is transmitted via the rack 13 to the gear 15 having the half ring teeth of the power output shaft 10, and the gear 15 alternates with the rack 13 to convert the reciprocating motion of the rack 13 into a circular motion to output power. When the piston 11 reaches the left and right dead center, the exhaust valve 12 is automatically smashed by the exhaust door stopper 9, and automatically closes under the action of the spring when leaving.

When the piston 11 runs to the left (right) stop point, the mixed fuel in the left (right) combustion chamber is compressed, and the right (left) exhaust valve 12 is automatically slammed into the exhaust by the exhaust door stopper 9, and the right (left) air enters The gas nozzle 2 continuously sweeps the remaining exhaust gas, at which time the left (right) spark plug 1 is ignited, and the left (right) air intake nozzle 2 continues to inject air to fully stratify the mixed fuel. The piston 11 starts to work, the rack 13 of the upper (lower) piston and the toothed half of the gear 15 start to engage, and the contact point of the rack 13 of the lower (upper) piston with the gear 15 starts to detach at the half-turn without the tooth. The power output shaft 10 is driven to rotate clockwise (reverse). When the piston 11 continues to the right (left) until the right (left) piston exhaust hole 14 is separated from the right (left) outer casing exhaust hole 4, the right (left) exhaust valve 12 is closed, and the right (left) fuel intake nozzle 3 Injecting fuel, the right (left) air intake nozzle 2 continuously injects air. When the piston 11 is running fast to the right (left) stop point, the left (right) exhaust valve 12 is automatically slammed into the exhaust by the exhaust door stop 9, and the left (right) air intake nozzle 2 continuously purges the remaining exhaust gas. When the piston 11 is operated to the right (left) stop point, the right (left) spark plug 1 is ignited, and the lower (upper) rack 13 and the toothed half of the gear 15 start to engage, and the upper (lower) rack 13 and the gear 15 are The contact point begins to detach just at the half-turn without teeth, pushing the power take-off shaft 10 to continue the (reverse) hour hand rotation. The rack 13 and the gear 15 are alternately engaged and disengaged to complete a power cycle, and the power output shaft 10 is rotated 360 degrees. Left (right) combustion chamber in turn When the ignition is performed, the piston 11 reciprocates to perform work, and the power output shaft 10 is continuously rotated in one direction to smoothly output the power.

Referring to Figures 1, 2 and 5, piston exhaust holes 14 are provided at both ends of the piston 11, and exhaust valves 12 are mounted at both ends of the piston 11, and when the piston 11 is about to run to the left (right) stop point, right ( The left exhaust valve 12 is automatically smashed by the exhaust door stopper 9, and automatically closes under the action of a spring when leaving, and the piston vent 14 communicates with the outer casing vent 4 when the right (left) exhaust valve 12 is hit. The exhaust gas is discharged from the outer casing oil seal 7 through the outer casing oil seal 7 through the piston vent hole 14. Instead of a conventional engine connecting the oil seal to the piston, the outer casing oil seal 7 is attached to the outer casing 8. It acts to isolate the oil from the venting holes. The utility model solves the problem that the piston seal of the traditional two-stroke engine must leak the oil through the vent hole of the outer casing, and can only adopt the combustion method of the oil mixed with the oil to discharge the environmentally unfriendly defects, and the same lubrication method of four strokes can be used, which fundamentally solves the existing Defects in emissions and fuel consumption that are already in the technology.

The air intake nozzle 2 is connected to the outer casing 8, and the mixed fuel is continuously stratified by means of direct air injection into the cylinder. Cancel the intake valve of the traditional engine. It not only ensures a sufficient amount of intake air, but also sweeps out the exhaust gas in the cylinder to save fuel while reducing the temperature inside the cylinder, achieving a multi-faceted effect.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A two-stroke gear shaft engine for a power unit, comprising: a casing (8), a piston (11) and an exhaust valve (12), wherein the casing (8) is provided with an air intake nozzle (2) And an outer casing oil seal (7), an exhaust valve (12) is mounted at both ends of the piston (11), and an exhaust valve stop (9) is installed in the piston (11), and the piston (11) is intermediate The upper and lower rows of racks (13) of the gears (15) connected to the power output shaft (10) are opened, and the exhaust valves (12) are connected to the exhaust valve stops (9).
A two-stroke gear shaft engine for a power unit according to claim 1, wherein said rack (13) and said gear (15) are alternately engaged to complete a power cycle, and said power output shaft is driven. Turning 360 degrees, the reciprocating motion of the piston (11) is converted into a circular motion of the power output shaft (10) continuously in one direction.
A two-stroke gear shaft engine for a power unit according to claim 1, wherein said exhaust valve (12) is automatically exhausted by said exhaust valve (11) when it is operated to a left and right dead center The door stop (9) collides and automatically closes under the action of a spring when leaving.
A two-stroke gear shaft engine for a power unit according to claim 1, wherein said air intake nozzle (2) adopts a method of continuously injecting air in a cylinder.
A two-stroke gear shaft engine for a power unit according to claim 1, characterized in that both ends of the piston (11) are provided with exhaust holes (14).
A two-stroke gear shaft engine for a power unit according to claim 1, wherein said outer casing oil seal (7) isolates oil from said venting opening (14).
A two-stroke gear shaft engine for a power unit according to claim 1, wherein a gear (15) is mounted on the power output shaft (10), and a half of an outer peripheral surface of the gear (15) is provided. There are teeth and the other half is smooth.