| 摘要 |
<p>A reciprocatory assembly (11) presents two parallel opposed guide surfaces (10), transverse to its direction of reciprocation, on elements (33 and 34) interconnected at their two ends by tie rods (35) and spacers (36). A drive block (8) carries bearing plates (44) slidably engaged with the guide surfaces (10). Oil is fed to the bearing plates from a passage (51) in a crankpin (6) journalled in the drive block through passages (52, 53, 54) in the crankpin to grooves and passages (58, 60, 61) in the drive block and plates (44). To ensure maintenance of an adequate lubricant film over the whole length of the bearing plates when under load, end portions (47) of the drive block are made slightly flexible elastically in bending to be able to conform to slight deformations of the elements (33 and 34) under load.</p> |
