| 摘要 |
PROBLEM TO BE SOLVED: To improve a conventional double-internal gear pump.SOLUTION: The present invention relates to a double-internal gear pump (1) having two internal gear pumps (2) as reverse-feeding pumps of a hydraulic 2-circuit type vehicle brake device slip-controlled. The internal gear pump (2) is arranged in each brake circuit. The internal gear pumps (2) are arranged to have pump shafts (3) parallel in one plane. The pump shaft (3) has a driving wheel (18), and the driving wheel is meshed with a common driving wheel (19) of an electric motor for a common driving section of both of the internal gear pumps (2). The pump shaft (3) is tightly sealed by a radial shaft packing ring (15) between the driving wheel (18) and the internal gear pump (2). On an opposite side, the internal gear pumps (2) are tightly sealed by a blocking cover (16). Both of the internal gear pumps (2) are spaced from each other, and defined from each other by a partition wall (17), thereby securing more precise hydraulic partition. |
