GB976608A - Swash-plate mechanism for internal combustion engines - Google Patents

Abstract

976,608. Linkwork; valves. H. PAPST. Sept. 9, 1963 [Sept. 10, 1962; March 14, 1963], No. 35461/63. Headings F2K and F2V. In a swash-plate mechanism for internal combustion engines, a wobble ring 14 is mounted on the inner race 13 of a ball-bearing whose outer race is supported on a swash plate 3, and the wobble ring 14 is prevented from rotation by a bevel gear 16. The wobble ring 14 is provided with connecting-rod pivots 17 which are fed with oil under pressure. The outer race is in two parts which are mounted on the swash plate 3 by a housing ring 6, aligning shims 11 and screws 9. In a modification, shown in Fig. 2, the wobble ring is supported by an angular contact bearing 12 and rollers 35. Secured to the wobble ring 14 are threaded rings 38 in which are screwed bearing bushes 39. In another modification, the rollers 35 are replaced by a plain bearing, and the wobble ring 14 may be made of titanium alloy or aluminium alloy. In the arrangement shown in Fig. 5, two angular contact ball-bearings are used, the outer races being secured together by a compression ring 68 and the race 65 being constructed so as to be resiliently yielding. Angle # is at least 15 degrees, preferably 25 degrees, and angle γ is at least 40 degrees, preferably 65 degrees. A similar arrangement may be applied to a single angular contact ballbearing. In a further modification, taper rollers are employed. A valve in the lubricating system comprises a U-shaped leaf spring 73, Fig. 7, inserted in a slot 72, transverse to an oil channel 21, and having one end located in a recess 74.