GB1010796A - Wobble body mechanism for converting reciprocal movement to rotary movement and viceversa - Google Patents

Abstract

1,010,796. Inclined crank mechanism. B. A. DE WAERN. June 28, 1962 [Jan. 23, 1962], No. 24906/62. Heading F2K. [Also in Divisions F1] In an engine or compressor wherein a wobble body 45 on an inclined crank-pin 42 of a main shaft 43 is connected to a number of pistons 73, the non-rotatable wobble body is slidably anchored at its periphery to a second crankpin 100, of smaller inclination, which is rotated at the same speed as the shaft 43 by a gear train 105 ... 109. As shown a ball 112 sliding on the pin 100 is radially slidable between two projections, Fig. 4 (not shown), on the body 45. If the ratio of the two crank-pin inclinations is one half, the ball 112 may engage a partspherical socket on the body 45-i.e. no radial movement occurs. The wobble body 45 is located on the crank 42 by a thrust bearing flange 53. A flange 34 on the main shaft locates this shaft in the housing 1. Both crank-pins have offset counterbalance masses. In the twelve-cylinder four-stroke engine shown, six pistons on each side of the body 45 are connected thereto by respective ball-ended rods such as 66. Each piston has an end recess 79 adjacent an injection nozzle 81. A toothed rim 86 on the shaft 43 operates through a countershaft 88 to drive a coaxial valve-operating cam 91 at half speed. The cam actuates for each cylinder an air inlet valve such as 82 and an outlet valve such as 84. In a two-stroke engine, Fig. 8 (not shown), the valve operating cam rotates with the main shaft. In a compressor, Fig. 9 (not shown), the pistons are flat-topped, the fluid inlet and outlet valves being formed as thin flaps swinging against perforated discs in the cylinder end wall. Specifications 618,553, 633,088, 662,190 and 672,235 are referred to.