DE3001094A1 - Epicyclic drive mechanism in IC engine - has planetary pinion with pin in bush coupled to opposed-piston connecting rods - Google Patents

Abstract

The epicyclic drive mechanism incorporates a planetary driving pinion reciprocating in a straight line. The pinion (6) has a pin (5) working in a bush (4), the latter coupled to the engine piston rods (3), extending into sealed working chambers, so that a pair of opposed pistons (2) together form four expansion chambers. The pinion can be a double one, meshing with a stationary double annulus, and working in bearings in the crankshaft balance weights (7), there being gears on the crankshafts meshing with others (10) on the output shaft.

Description

Piston rod drive with coupled pitch axis

on the planetary gear! The subject matter is an internal combustion engine with an opposing pair of pistons, which on short piston rods have a common ~ seed bearing ring are firmly connected in the middle, creating a rigid drive; is formed, so that here the to-and-fro mass movement to a minimum is reduced.

The piston rod halves lead through hemedrally sealed expansion spaces in the cylinder and thereby form four working chambers at the same time, which are very narrow Have space housed in a small engine.

The pitch axis of the planetary gear is mounted in the piston rod ring and inevitably guides the pair of pistons back and forth in a straight line or through the working stroke cycles the explosion pressure gradient causes the torque via the planet gear to the crankshaft outwardly derived as a torque.

The previously known piston engines have the disadvantage that the Piston distance with the longer connecting piston rod is larger and the generated reciprocating inertia such as cam tracks, spiral spirals, eccentrics or stored l. reel systems are more complex, massive and heavier, and also arise an unfavorable torque derivative of inclined sliding and rolling surfaces that at Combustion engines is uneconomical.

Due to the wide piston distance, these engines are bigger and heavier, with a smaller engine version there is only one working space above the piston possible, so that with the four-stroke principle the compression and explosion stroke pressures are direct have an unfavorable effect via inclined rolling sliding surfaces and lateral piston friction pressures.

In addition, the wet inertia is reduced by the exhaust and intake stroke Lifting parts are mechanically beeyt back and forth empty via sliding and bearing points, a similar one A comparison with a confused four-cylinder four-stroke engine should be mentioned here, where each piston has only one working chamber, the inclined positions arise of the connecting rods during the torque via the crankshaft, the well-known lateral Frictional pressures from the piston skirts against the cylinder walls All compression and explosion load pressures must be fully absorbed by the connecting rod and crankshaft bearings will.

The new proposal, with a linear piston pair that the Reverse movement with a planetary gear 1 to 2 in the fixed internal gear rim to transfer, corresponds here to an ideal semetric stroke movement that evenly slightly rotating planet gear is with the pitch circle axis on the piston rod directly coupled The piston pair with its four working chambers can be operated in a four-stroke process valves can be controlled and floats shifted one clock phase one behind the other in a sense, with each work cycle between the expulsion and compression pressures back and forth, only the explosion stroke pressure vessel guides the actual work force on the planetary drive that diverts the converted rotational force to the outside.

The inner piston chambers can be used as a double-acting two-stroke engine in the cylinder with the sealed piston rods as an absolute pre-compression space take advantage of. The inner piston sides can be the front; compression volume like a charge pump Blow through the cylinder flush to the maximum. The piston pair is used in this two-stroke engine as a boxer engine caught between the explosions in the cylinder heads and there and driven here.

As a diesel version, this seems particularly suitable because the high Compression and explosion pressures are not absorbed by sliding and rubbing points but are supported in a straight line with the light, rigid short piston rod, and the planetary drive converts the respective work cycle movement as torque output to a drive shaft with gear wheels. On this drive shaft sit with a corresponding distance firmly connected two large gears, where each from the crankshaft the small gear engages, and so a uniform torque transmission of the flywheel masses - crank webs the planet gear stored in it turns.

(1 and 2) shows the engine block 1 in which the piston pair 2 Is fitted with sealed piston rods 3, these are fixed to the bearing ring 4 tied together. The pitch circle axis 5 stored therein is designed as a double planetary pinion 6 formed one piece, and engages in the next to each other fixed internal tooth boundary 8 + 8a, where the double planetary pinion in the balanced centrifugal masses 7 + 7a is stored. The crankshaft gears 9 + 9a mesh with the large transmission gears 10 + 10a, which are rotatably fixed together on a continuous central drive shaft 11 sit, and the torque dissipation leads to the outside in the reduced gear.

The Fig. (3) has on the crankshaft 12 with a balanced Inertia 7 the simple planet wheel 6 mounted that in the fixed internal ring gear 8 engages, the planetary gear pitch circle axis 5 is seated in the bearing ring 4 such that it can rotate which is firmly connected to the piston rods 3. The piston heads 2 have after on the inside, narrow piston jacket webs 13 which are nested in recessed cylinders Immerse pocket 14 and cover or uncover the inlet and exhaust seats.

This double-acting two-stroke has only three moving parts where the torque here is taken directly from the crankshaft, and as light Small motor can be manufactured particularly easily.

The most varied combinations are possible here, so? .E adjacent In-line cylinder group arrangement, where a continuous central main shaft with the Pairs of gears engage the individual engine blocks with the needles and synchronously Drive in reduced gear, if there is a malfunction in an engine block, this can be done simply replace completely quickly.

As a simple planetary drive with only one piston and one piston rod can the double acting cylinder as compressed air resp.

Steam engine to be built.

This possibility of a steam engine can also be converted into different large opposing cylinder stages for high and low pressure, or as a combined compressed air compressor, co-charger or

Operate pump.

With this suggestion, only the pressure drop from the operating medium is taken into account Derived from the drive stroke movement as torque to the planetary drive to the outside.

it will go back and forth with the short, light piston rods and pistons Mass movement reduced to a minimum and is due to a straight stroke movement guidance Hardly exposed to wear and tear, resulting in a long service life and fuel savings is possible with high performance.

The four large expansion rooms can proportionally be converted into a compact one Lightweight cylinder block can be accommodated All engine parts can be stably to produce easily and economically with advantage, often expediency.

L e r s e i t e

Claims (6)

P a t e n t a n s p r ü c h e: 1. Planetary engine Tit more straightforward Guided reciprocating pitch circle gear drive characterized in that on the planet gear (6) the pitch circle axis (5) sits in the bearing ring (4) and with the Piston rods (3) are connected, which lead through sealed working chambers and with the opposing pair of pistons (2) in an internal combustion engine, four expansion spaces simultaneously forms. 2.) According to claim 1 geknnzeich that Fig. 1 and 2, the double planetary gear (6) engages in the fixed internal gear rim (8 + 8a) and in the crank locking compounds (7 + 7a) is mounted where the crankshafts (12 + 12a) with the pinions (9 + 9a) in the gears (10 + 10a) engage, which are non-rotatably connected to the drive shaft (11) are. 30) According to claim 1 and 2, characterized in that Fig. 3 a planet gear (6) engages in the fixed ring gear (8) and in the flywheel crank (7) is mounted which leads to the outside with the crankshaft (12). 4.) According to claim 1 - 3 characterized in that the piston heads (2) Depending on the interior facing webs (13) are located in the cylinder pockets (14) Immerse and control the intake and exhaust ports. 5.) According to claim 1-4, characterized in that the simple Planetary engine a piston rod with a double-acting cylinder as steam, or compressed air motor works or with opposite multi-stage large cylinder designs is equipped. 6.) According to claim 1-5, characterized in that a combined Drive as a compressor, co-charger, or pump is operated and the individual Engine cylinder blocks are arranged side by side, with a continuous main drive shaft are in engagement with the pairs of gears.