CN2310862Y

CN2310862Y - Engine

Info

Publication number: CN2310862Y
Application number: CN 97234157
Authority: CN
Inventors: 王延辉
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-09-05
Filing date: 1997-09-05
Publication date: 1999-03-17
Anticipated expiration: 2007-09-05

Abstract

The utility model relates to an engine which is composed of a cylinder, two pistons, two connecting rods, two crank shafts, an air admission and exhaust mechanism and a spark plug. Each connecting rod is connected with one piston and one crank shaft by a piston pin, and the two pistons are installed in the cylinder in the mode that the tops of the two pistons are opposite. The air admission and exhaust mechanism is arranged on the cylinder wall, and the spark plug is arranged on the outer wall of the middle portion of the cylinder. A synchronous gear transmission mechanism which causes the pistons to be simultaneously arrived at an upper and a lower dead points is connected between the two crank shafts. The utility model can cause the two piston which are arranged in one cylinder to drive the two crank shafts to be rotated, and the utility model causes the structure of a combustion chamber to be compact.

Description

New work engine

The utility model relates to motor.

As everyone knows, motor mainly is made up of cylinder, piston, connecting rod, bent axle, intake and exhaust mechanism and spark plug, piston is contained in the cylinder, connecting rod connects with piston by wrist pin and connects with bent axle, and spark plug is contained on the cylinder head, generally all is that one or more cylinders drive a bent axle rotation, if make two bent axles on the same equipment just rotate and to overlap cylinders with two, this will increase extraneoas loss, makes fuel consumption increase, and cost improves.

The purpose of this utility model is to overcome the deficiencies in the prior art, provides an a kind of cylinder of compact structure to drive the new work engine that two bent axles rotate synchronously.

The purpose of this utility model realizes by the following technical solutions:

New work engine is made up of a cylinder, two pistons, two connecting rods, two bent axles, intake and exhaust mechanism and spark plugs, each connecting rod connects with a piston by wrist pin and connects with a bent axle, two piston head install in the cylinder the top, intake and exhaust mechanism is located on the cylinder wall, spark plug installs on the outer wall of cylinder middle part, is connected with between two bent axles to make piston arrive the synchromesh gear driving mechanism of upper and lower stop simultaneously.

Piston tip is spill down.So that the firing chamber obtains desired shapes.

Cylinder is provided with the spark plug of two groups of intake and exhaust mechanisms and two symmetries.Intake and exhaust and make mixture combustion abundant fast.

In the technique scheme, because two pistons are that the top installs in the cylinder the top, and are connected with the synchromesh gear driving mechanism between two bent axles, when therefore lighting a fire, two-piston pressurized simultaneously drives two crankshaft rotating, and two bent axles can make piston be raised to top dead center simultaneously again.With drive two bent axles with two cover cylinders and compare, the utility model has saved the cylinder head of cylinder, makes the chamber structure compactness, no dead angle.Combustion chamber volume can be saved oil consumption with regard to exportable same power than two combustion chamber of air cylinder's sums are little, reduces cost.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is first embodiment's of the utility model a structural representation.

Fig. 2 is the end view of cylinder among first embodiment shown in Figure 1.

Fig. 3 is the schematic representation of synchromesh gear driving mechanism between two bent axles among first embodiment shown in Figure 1.

Fig. 4 is second embodiment's of the utility model a structural representation.

Fig. 5 is the structural representation of cylinder among second embodiment shown in Figure 4.

Fig. 6 is a synchromesh gear driving mechanism schematic representation between two bent axles among second embodiment shown in Figure 4.

Wherein: 1,19. left bent axle 2,20. left connecting rod 3. cylinder left parts 4,21. left pistons

5,11. intake valves, 6,12,23,29. spark plugs, 7,25. right bent axles

8,26. right connecting rods, 9. cylinder right parts, 10,27. right piston 13. inlet holes

14. exhaust port 15. tapped holes 16. piston holes 17,31. left gears

18,32. right gears, 22. two-stroke exhaust ports, 24. cylinders 28, transfer port

30. two-stroke inlet hole

Embodiment 1:

Present embodiment is a four stroke engine, and its structure as shown in Figure 1.Its cylinder is formed by screw attachment by cylinder left part 3 and cylinder right part 9 together, can find out that from this two-part end view that Fig. 2 provides each part all has inlet hole 13, exhaust port 14 and tapped hole 15, intake valve 5,11 is housed, with the exhaust valve (not shown), and spark plug 6,12.Left piston 4 and right piston 10 tops install to respectively in the cylinder-bore 16 of cylinder left part 3 and cylinder right part 9 top, and left connecting rod 2 connects with left piston 4 and left bent axle 1 respectively, and right connecting rod 8 connects with right piston 10 and right bent axle 7 respectively.Two piston tip are following spill, can make more satisfactory the raising the efficiency of shape of firing chamber.In the synchromesh gear driving mechanism that Fig. 3 provides, left gear 17 installs on the left bent axle 1, right gear 18 installs on the right bent axle 7, and these two gear parameters are identical, and two gears rotate two bent axles in the same way and drive two-piston by the small gear in the middle of them and arrive top dead center and lower dead center simultaneously.Be equipped with two in the present embodiment and pack into the intake and exhaust and make the mixed air sufficient combustion fast of exhaust gear and two spark plugs.

Embodiment 2:

Present embodiment be its structure of two stroke engine as shown in Figure 4, it and embodiment's 1 difference is in the intake and exhaust.Embodiment 1 intake and exhaust are to finish by the valve in the port on the cylinder, and the intake and exhaust of present embodiment are directly to finish by transfer port 28, inlet hole 30 and exhaust port 22 on the cylinder, and mixed air enters cylinder igniting back by inlet hole 30 to transfer port 28 and discharges from exhaust port 22.Its synchromesh gear driving mechanism is made up of four gears as can be seen from Figure 6, and turning to of such two bent axles is just opposite, but also can make two pistons arrive top dead center and lower dead center simultaneously.Present embodiment has reduced mixed gas from the invalid escaped quantity of exhaust port because the same end of cylinder makes transfer port into and exhaust port lays respectively at the cylinder two ends by traditional being arranged in transfer port and exhaust port, has improved combustion utilization efficiency.

Claims

1. new work engine, form by a cylinder, two pistons, two connecting rods, two bent axles, intake and exhaust mechanism and spark plugs, each connecting rod connects with a piston by wrist pin and connects with a bent axle, it is characterized in that: two piston head install in the cylinder the top, intake and exhaust mechanism is located on the cylinder wall, spark plug installs on the outer wall of cylinder middle part, is connected with between two bent axles to make piston arrive the synchromesh gear driving mechanism of upper and lower stop simultaneously.

2. new work engine according to claim 1 is characterized in that: described piston tip is spill down.

3. new work engine according to claim 1 is characterized in that: described cylinder is provided with the spark plug of two groups of intake and exhaust mechanisms and two symmetries.