DE3615331A1 - Rotary piston engine for multifuel methods of operation with working chambers purposely controllable during operation - Google Patents

Abstract

The concept for this represented in Figures 1-4 was designed according to the invention to satisfy fundamental technical prerequisites relating to: Clear separation of engine and combustion chambers, and inlet and exhaust ports. Perfect sealing, even in the event of thermal expansion, elastic deformation, progressive wear. Metered lubrication in conjunction with internal cooling for static and moving components. Method of operation according to optimised four-stroke working process for internal combustion engines. Economically justifiable operating, space, weight and manufacturing conditions.

Description

The invention relates to rotary piston engines according to the upper Concept of claim 1 + 2.

In rotary piston engines designed in this way, toothed crank drives ( 2 ) are mounted in the flywheel with an integrated drive shaft ( 1 ), the small connecting rod journals ( 100 ) of which are mounted in the associated carrier disk with integrated piston pairs ( 7 from) for transport. The toothed pinions of the crank drives ( 2 ) are functionally proportionally engaged with gearwheels ( 4 ) mounted in the stationary split housing ( 3 ) which do not rotate, but can be controlled in play-optimized positions by means of play-free actuators ( 5 ).

The specified combination enables, on the one hand, controlled, performance-optimizing changes in volume of the work rooms ( 6 ) during operation and, on the other hand, fulfills the main prerequisite for multi-mode operating modes.

It is known that the Dar and patent literature multi-layered versions for rotary orbital circuits piston engines (e.g. patented Stuttgart, groups 1/07, 1/077, 1/10, 5/02, 19/08, 53/02, 53/08, 53/10, 53/12) often because of difficult technical, as well as host solutions that are hardly economically viable, no further be followed.

The invention described in the introduction is based on the object reasons, the upcoming demands on internal combustion machines, functionally controllable Methods.

To solve this problem, according to the invention in the fig 1-4 practically viable concepts are recorded.

Another design option is the alternative off guidance of the pistons, instead of rectangular-square cross-section, circular shape, with adapted piston rings for the Cylinder seal.

The advantages achieved with the invention are in particular in the fact that in this concept for rotary piston engines Solution was found in which as a result during operation controllable volume change of the work rooms, on the one hand Performance increases, on the other hand also multi-functional operation types are possible without complex mechanical valve mechanisms men, with only rotating pistons in the direction of rotation, as well as on the circulation circle tangential pressure-force direction without disturbing Lateral forces, resulting in improved performance, higher torque, reduced fuel consumption.

An embodiment of the invention, regarding rotation piston engine, with controllable during operation Working volume, is shown using the following illustrations asked and explained.

Fig. 1 Function diagram

Fig. 2 cross sections (line AB from Fig. 1)

Fig. 3 Tax plan

Fig. 4 Study on the tax plan ( Fig. 3)

To Fig. 1 + 2

• 1st Drive shaft with integrated flywheel (stored in the housing position ( 3 ))
  2nd Crank drives with toothed pinions (mounted in the flywheel position ( 1 )) (for lubrication see position ( 8 )
  3rd Housing, split version, stationary (hydraulically stabilized, see position ( 12 )
  4th Gears mounted in housing position ( 3 ) (in engagement with position ( 2 ) + position ( 5 )
  5 . Actuators mounted in housing position ( 3 ) (in engagement with position ( 4 ) (mechanical control alternatively electronic)
  6 . Work rooms (volume change controllable during operation via position ( 4 + 5 ))
  7 . Piston pairs ( 7 ab) mounted on carrier disks (with internal cooling in connection with the function position ( 8 ) (alternative version of the piston pairs with circular cross-section, with adapted piston rings to suitably shaped housing position ( 3 )
  8 . Sealing strips (pneumatically applied) (wear-resistant sealing + lubrication (see position ( 9 )
  9 . Supply and return of compressed, filtered oil-air mixture (function = lubrication + internal cooling)
  10th Outdoor cooling rooms (for e.g. water cooling, alternative air cooling)
  11 . Boundaries with axial bearings + seals
  12 . Pressure limiter (hydraulically controlled pressurization to stabilize the split housing position ( 3 )

To Fig. 3

Control plan for recording the variable working chamber with periodically varying piston speeds, with the small connecting rod pins ( 100 ) in the rolling circle ( 101 ) of the toothed crank mechanism ( 2 ).

To Fig. 4

Study, primarily z. Power transmission piston ( 7 ab) crank drives ( 2 ).

Claims (2)

1.Rotating piston engine, for multi-material operating modes, with workspaces that can be controlled during operation, with rotating pistons, which form workspaces in the direction of rotation according to the four-stroke principle, the volume of which can be increased or decreased in a controlled manner during operation, characterized in that within a stationary one ring-shaped housing ( 3 ) several pairs of pistons ( 7 ab) are connected to crank drives ( 2 ) stored in the flywheel ( 1 ) in such a manner that the piston speeds vary periodically only in the direction of rotation, with inlet and outlet openings being released from the piston edges, so that the gas exchange process can be carried out without a positively controlled valve mechanism, whereby the volume of the work spaces can be variably controlled and changed for optimized operating conditions. 2. High-performance rotary piston engines according to claim 1, characterized in that instead of single-chamber multi-chamber units gate are conceivable.