| 摘要 |
1415146 Liquid cooled housings for rotary piston I C engines AUDI NSU AUTO UNION AG and WANKEL GmbH 7 March 1974 [8 March 1973] 10158/74 Heading F1F To prevent side wall distortion in a rotary piston I.C. engine of the Wankel type having at least one peripheral wall portion 3 arranged between two parallel side portions to define a cavity in which a piston 5 rotates, each side portion 1 comprises two side walls 2, 2a which define therebetween a cooling passage 8 for liquid coolant and the side walls 2 nearer the piston 5 have, in the region over which oil seals 7 on the piston pass, a greater wall thickness than in the remaining region which extends radially outwards of this region and is limited by the peripheral wall portion 3. Ribs 12 support the side walls 2, 2a only in a region 13 which is adjacent the peripheral wall portion 3. |
