DE102004023370A1 - Rotary piston engine with joint and cranked movement raises and lowers piston off and back onto support bearing in response to gas and spring pressure affording synchronous movement. - Google Patents

Abstract

With its cam correctly positioned the sleeve connecting the frame and the piston (3) lifts the piston off and lowers it back onto the bearing (0) depending on tasking e.g. freewheel or gas or spring pressure. The sleeve is addressed automatically by spring from inside. The piston rotation axis is led outwards to provide synchronism for slide and joint relief. Gas exchange is afforded by a control disk joined forcibly by spring and gas pressure to the partition and powered by joint here operating as a crank for gas exchange control. The slide extends in a cylindrical piston bore and recess so in this way to prevent the joint tipping over with each position of rotation.

Description

The Invention relates to a rotary piston engine according to the preamble of claim 1

From the DE-PS 4 26 366 A rotary piston engine is known in which two units of the same type, which are suitable as motors and compressors, are connected to one another, each with a locking slide fitted with the sequence of motion of a rotating crank loop in a rotating cylinder drum pushing the eccentrically mounted rotary piston via a rotary thrust joint.

The Sealing between the pressure differences is done by sealing strips, which are located in a fitted rotary lobe. This also controls the gas exchange during circulation Covered holes that are in the rotary lobe and in the partition are located.

From the DE 42 29 999 C2 a rotary piston motor is known in which the sealing on the abutment is achieved by compression springs which are located in the eccentric axis.

at the rotary piston engine according to the Wankel principle rotates eccentrically rotary piston in a fixed housing with Inner contours and created with 21 sealing elements, which are in one Triangular pistons are located for the working principle required engine principle.

Criticism of the state of the art

The Charge change, which is caused by the drilled holes, between the motor and the compressor is reached due to the fitting gap of the rotary piston acting as a bypass while of the entire circuit are short-circuited and are therefore considered a leak.

The Pressure on the abutment by spring pressure is used in this arrangement broken due to the separating effect of gas pressure.

The Sealing elements required for the Wankel engine are subject to high Speed of continuously changing tasks of the moving work spaces Gas pressure, heat and high mechanical stress.

It the task is to support the gas power To direct spring force so that in conjunction with an improved Kinematics a motor capable Sealing can take place during training of the work rooms and continues a control disc driven by a crank, the gas exchange without Controls gap losses.

The solution the task is in the preamble of the claim and in the Description and in the summary with its design-related Characteristics in detail described.

1 shows the main view, with two units of the same type, which are suitable as compressors and motors, with an offset gate valve ( 5 ) on the partition ( 18 ) are screwed together to achieve a short charge. The eccentric arrangement from the rotary piston to the cylinder drum is carried out via the frame ( 10 ) and via the rotatable eccentric sleeve ( 8th ) achieved in tandem. The gas is discharged via the inlet channel ( 13 ) in the work area ( 14 ) of the compressor, so that after compression it can be 15 ) get into the motor's working space at the right moment and then close the overcurrent duct ( 17 ) to ignite.

The description of cooling, lubrication, output and ignition was omitted because they are known and in DE 42 29 999 C2 are described.

2 shows the main representation as in 1 , whereby the eccentric arrangement from the rotary piston to the cylinder drum is achieved via a continuous, fixed, supported rotary axis, as well as the automatic application of the eccentric sleeve, as in 8th shown as a link between the rotary piston on the abutment within the cylinder drum.

4 shows the mechanics of the gas exchange control, where the control disc ( 15 ) axially by gas and spring pressure ( 24 ) non-positive with the partition ( 18 ) is connected and as in 3 and in the kinematic scheme ( 11 ) shown controls the gas exchange.

6 shows the automatic compression spring for the eccentric sleeve ( 8th ) with crank attachment ( 22 ) and the basic adjustment ( 21 ), which is responsible for the pressure on the abutment, whereby the holding seal follows the rhythmic pressure build-up, as in 7 described.

7 shows a cross section of the compressor side 1 with enlarged zoom section ( 7a ) and those in the kinematic scheme ( 13 ) shown effect of the rotatable eccentric sleeve under pressure, spring force and freewheel, which affects the rotary piston on the abutment by applying or lifting.

8th . 9 and 10 are how they work 7 , but task-specific with different base points and eccentric positions and can be found as shown in the attached enlarged figures and kinematic diagrams.

10a shows the enlarged zoom section 5 with split swivel joint ( 6 ), which is always non-positively connected to the contact surfaces of the gate valve and the cylindrical bore of the rotary piston in the event of overpressure or underpressure.

0

abutment

1

cylinder drum (Compressor)

2

cylinder drum (Engine)

3

rotary pistons (Compressor)

4

rotary pistons (Engine)

5

blocking slide

6

Turning and sliding joint (divided)

7

eccentric mounted axle

8th

Movable rotation eccentric (Cam gear)

9

Axis of rotation Center of the cylinder drum (fixed in space)

9a

axis of rotation (Center of rotation rotary joint)

10

frame

11

bearings

12

side panels the cylinder drum

13

inlet channel

14

working space

15

control disc

16

axis of rotation the control disc

17

Overflow channel

17a

Orbit of 17 and 19

18

partition wall between compressor and engine part

19

Passageway the partition

20

foreign rice bea skanal

21

Basic adjustment for eccentric axis ( 6 )

22

crank approach for eccentric sleeve

23

limiting screws

24

Helical compression spring

24a

Schraubenverdrehfeder

25

eccentric position

26

Excess pressure direction gas power

27

Zoom window

A

A1 and A 2 = link layers (kinematic diagrams)

On embodiments the invention is explained in more detail with reference to drawings. It shows

1 an overall view of the rotary piston engine with the axis of rotation guided outside the cylinder drum for the rotary piston and the rotatable eccentric sleeve

2 an overall presentation like 1 , but with a supported rotary axis for rotary pistons and the rotatable eccentric sleeve inside the cylinder drum

3 a cross section on the line BB 1

4 a side view of the control disc and the partition between the motor and compressor

5 a cross section on the line CC from 1

5a to 5d Gate valve position at 90 ° intervals

6 a cross section on the line AA

7 a cross section of the compressor with zoom window of the axis of rotation 1

7a an enlarged zoom section 7

8th a cross section of the compressor with zoom window of the axis of rotation 2

8a an enlarged zoom section 8th

9 a cross section of the motor with zoom window of the axis of rotation 1

9a an enlarged zoom section 9

10 a cross section of the motor with zoom window of the axis of rotation 2

10a an enlarged zoom section 10

10b enlarged zoom section 5

11 a kinematic scheme of charge exchange control

12 a kinematic scheme of sliding friction on the sealing surfaces

13 a kinematic diagram of the limbs 7a and 8a

14 a kinematic diagram of the limbs 9a and 10a

Claims (5)

Rotary piston engine having an engine and compressor part with a respective permanently connected with the cylinder barrel and the side parts lock slide via a shared sliding pivot the eccentrically mounted rotary piston, which is connected with guided to the outside rotation axis, and drives the movement of a rotating slider crank, characterized in that that by a rotatable eccentric sleeve as a connecting link between the frame and the rotary piston with the correct eccentric position ( 25 ) Depending on the task, following the freewheel or the gas and spring pressure, lifting or engaging the rotary piston on the abutment causes. Rotary piston engine according to claim 1, characterized in that as in 2 shown, the automatic application of the eccentric sleeve by spring force and not from the outside, but from the inside. Rotary piston engine according to claim 1, characterized in that about the outside guided Axis of rotation of the rotary piston is synchronized by a crank mechanism is reached, the locking slide and rotary slide joint are relieved. Rotary piston engine according to claim 1 and 2, characterized in that the gas exchange by a freely movable control disc ( 15 ) axially by gas and spring pressure ( 24 ) non-positive with the partition ( 18 ) is connected and by rotating 6 ) driven as a crank, as in the kinematic scheme ( 11 ) shown controls the gas exchange. Rotary piston motor according to claim 1 and 2, characterized in that a cylindrical bore in the rotary piston with a trapezoidal recess for receiving the extended locking slide, which tilts the split rotary joint over the pivot point ( 9a ) prevented.