DE3043251A1 - Axial piston swashplate engine - has hydraulic actuator to axially slide output shaft for adjustment of swashplate angle to vary stroke - Google Patents

Abstract

The axial piston engine comprises cylinders circumferentially spaced around the output shaft. These contain pistons connected to a swashplate on the shaft, whose inclination is variable to vary the piston stroke, whilst maintaining the compression ratio approx. constant. The shaft is axially slidable by a piston rotating with the shaft in a fixed hydraulic cylinder and transmits its output torque to a rotatable non-sliding bush via a spline. Levers are pivoted to this bush and to the swashplate so that axial adjustment of the shaft varies the inclination of the swashplate.

Description

She is called the Umlohrung previous construction. ο U 4 ο Z b I The housing 1 of this engine with the screwed cylinder head 2 has only another thrust bearing 3.

On the inner, rotating bearing bush k of the four-point bearing, the thrust levers 5 have a fixed pivot point on bolts. The shaft 7 is slidable in the bearing bush U , equipped as a splined shaft for transmitting the torque. XO>

In the interior of the combustion cylinder 8 (odd number 3,5,7) is a hydraulic cylinder 9 arranged with piston 1a, which is connected to the main shaft 7 is firmly connected and rotates.

The piston 10 with the shaft 7 is displaced in a known manner via a servo slide control 12 via the inflows and outflows 11. The thrust levers 5 thus change the angular position of the swash plate 13 P 3D 22 175.1, the stroke of the pistons 1t »and the compression. As described in P 2k 22 3% .7. At max., The working piston 1 ^ stroke of the way of the hydraulic 5teur ^j is rkolbens 1D 1/2 stroke of pistons, 1 ^ t and compaction £. But £ remains approximately constant regardless of the stroke (piston 1 ^).

The servo slide control 12 has an outer slide 15, the length of which is Gm 16 is adjusted. The inner slide 17 is a grooved axial bearing 1Θ adjusted according to the position of the piston 10 via a fork lever 19 If the slide 13 is moved in the max. Direction by the linkage 16, it acts Oil pressure on the left side of the calving 10 and causes larger stroke. At the same time, however, the inner slide 17 blocks the predetermined path 15. Thus, the piston 10 can be adjusted in any position over the entire stroke length. The pressure oil flows to the servaschiober via connection 20.

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5093 Burscheid

DESCRIPTION

Vehicle combustion engine for gasoline and diesel processes with variable stroke and approximately constant compression
With movable main uielle

In the patent application and disclosure .23 ^ι '45' · '225 _α 7 and the associated additional application P 2k 22 39 * +. 7 a motor is described whose swash plate can be swiveled in a spherical thickening of the main shaft and the stroke of 0 - max changed. At the end in front of the flywheel, the dent cannot be displaced towards the housing. The double lever 36 in P 2k 22 39 * 4.7 is moved via the Uierpunktlager 3k, the flange 33, on the cylinder extension 11, on which the cylinder head sits, and at the same time the compression for the respective stroke is kept approximately constant by the forced control of the lever 36 .

This resulted in the following disadvantages:

1) The motor housing consisted of two telescoping parts 11 and 12, which have to be sealed to each other and cause high rushes.

2) The moving cylinder head must also have a moving or movable connections for the exhaust, the inlet of the oil from the oil pan for the oil pump and the cooling water.

3) The mass of the heavy cylinder head with the inner housing 11 compromised the acceleration of the stroke increase or decrease (especially important when braking).

k) Two thrust bearings for the inner housing 11 and the outer housing 12 are required.

All these disadvantages do not apply according to the attached new drawing: Vehicle internal combustion engine for Dtto and diesel processes with variable Stroke and approximately constant compression with movable main shaft

COPY

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Claims (3)

* "f Vt ε ν; τ rf n« s; * p: r ü: c η ε ο η / ο ο γ -ι .: .... "·· * JU4ozb I Λ J Zwnags control for gasoline and diesel internal combustion engines with variable compression chamber with drive by swash plate with axial high-pressure bearing (P 3D 22 175.1) characterized in that the main shaft is axially displaced by a hydraulic piston 10 with the swash plate 13 and the torque via Heile 20 in Grooves of the dent 7 is transferred to the grooves of the bearing bush k . 2. Override control for internal combustion engines as in claim 1, characterized in that one end of the thrust lever 5 are fixed pivot points of the sliding structure, which are located on bolts 6 of the bearing bush k , which is mounted in the four-point bearing 3. 3. Override control for internal combustion engines as in claim 1 and 2, characterized in that that the hydraulic cylinder 9 is located in the central space of the combustion cylinder, and that the piston is attached to the surface is and circulates. U. positive control for internal combustion engine according to claim 1, 2 and 3, characterized in that the servo slide 12 is housed in the space between two combustion cylinders. A fork lever 19, which actuates the inner slide 1 'of the ServDschiebers 12, engages in the groove of an axial bearing 18 at the end of the main shaft 1. The adjustment takes place via the outer slide 15.