| 摘要 |
1,135,347. Driving gear; lubricating; gear pumps. FICHTEL & SACHS A. G. Nov. 6, 1967 [Nov. 11, 1966], No.50324/67. Headings F1B and F1F. In a driving arrangement for motor vehicles including an I. C. engine 40 driving a hydrodynamic torque converter 43, a pump 1 for delivering oil from a sump 4 for engine lubrication and a pump 2 for filling the torque converter are combined into one unit and driven by a common drive 46. The pumps 1 and 2 are gear pumps and pressure relief valves 50 and 50a are provided in by-passes 49 and 51, respectively. The cup-shaped pump housings 52 and 55 have respective driving gear wheels 14 and 20 mounted on a common drive-shaft 16 and the driven gear wheels 15 and 21 are mounted on journals 17 and 22. The suction and delivery conduits of the pump 2 are connected to the housing cover 24 and communicate with the suction and delivery sides through passages (57 and 58) Fig. 3 (not shown), in the cover. The pressure relief valve 50a is formed by an adjustably spring-loaded ball valve (27) (Fig. 3), in the cover 24. The suction and delivery conduits 47 and 48 of the pump 1 are connected to the base 19 of the housing 55 for communication with the suction and delivery sides of the pump 1. The suction conduits (112, 147) Fig. 5 (not shown), of the two pumps (101, 102) may be arranged concentrically, the suction conduit (147) of the lubricating oil pump (101) passing through the cover (124) and housing (155) of the converter filling pump (102). The output shaft 9 of the torque converter 42 is connected to a gear-box 45.
|
