TODAY’S PATENT – ARRANGEMENT FOR RELIEVING THE GUIDING MEANS OF SLIDING MEMBERS OF A MOTION CONVERTER
The ARRANGEMENT FOR RELIEVING THE GUIDING MEANS OF SLIDING MEMBERS OF A MOTION CONVERTER was invented by Charlotte Kluge on the 14th of September 1965, bearing patent number US3205663A.
This present invention generally relates to a motion converter, and, more specifically, to a converter for converting a reciprocatory movement into a rotary movement and vice versa. A converter of this type has become known according to which a displacement member cooperating with a recipr-ocatory machine element is connected to a rotor which in its turn through hydraulically operable means is connected to a rotary machine part. Partitions between pressure chambers of the rotary displacement member are formed by sliding members which during the rotation of the displacement member are recipr-ocated in axial direction in conformity with the contour of said pressure chambers.
In the gap between the lateral surfaces of the sliding members and the housing surfaces guiding said sliding members there are provided recesses which, through the intervention of bores, communicate with pressure fluid acting upon said sliding members so that during the rotation of the displacement member the pressure forces acting upon said sliding members approximately balance each other. In this way, high bearing pressures will be avoided which otherwise would be produced at the end edges of the guiding surfaces for the sliding members in view of the fact that the fluid pressure always acts upon diametrically oppositely located end forces of the sliding member.
Within a certain stroke range of the displacement member, the said forces would assume intolerable peak values. With the above outlined arrangement, however, the friction of the sliding member in its guiding means is considerably reduced whereby the safety of operation of the converter is increased.