自动变速器用油泵的排气构造制造技术

一种自动变速器用油泵的排气构造，在搭载有主泵和副泵的混合车辆中，在副泵工作时不会从主泵的空气排出孔吸入空气。主泵(10M)和副泵(10S)的吸入油路及排出油路彼此并联连接，在各自的排出油路(17M、17S)中，在合流点(G)的上游设置蓄压器(20M、20S)，以切断驱动停止侧的泵的排出油路。在主泵(10M)的排出口(35)设置有空气排出孔(AM)，该空气排出孔通过连通油路(50)连通到油盘(3)的油(F)中。由此，即使主泵(10M)停止，由于排出油路(17M)被切断，因此，主泵被填充油的状态能够维持相当时间，恢复运转时的响应性提高，另外，由于空气排出孔(AM)与油盘的油连通，因此，再运转时也不会吸入空气。

Exhaust structure of an oil pump for an automatic transmission

An exhaust structure of an oil pump for an automatic transmission; in a hybrid vehicle equipped with a main pump and a secondary pump, the air is not sucked from the air vent of the main pump during the operation of the secondary pump. The main pump (10M) and the auxiliary pump (10S) inhalation circuit and discharge circuit connected in parallel with each other, in the discharge circuit respectively (17M, 17S), at the confluence point (G) upstream of the accumulator set (20M, 20S), the discharge circuit shuts off the drive side of the pump stop. In the main pump (10M) outlet (35) is provided with air discharge hole (AM), the air exhaust hole communicated through the circuit (50) connected to the oil pan (3) (F). Thus, even if the main pump (10M) stop, as the discharge oil (17M) was cut off, therefore, the main pump is filled with oil condition to maintain a considerable amount of time response of the recovery operation was improved, in addition, due to the air discharge hole (AM) connected with the oil pan so, then, is not running inhaled air.

【技术实现步骤摘要】

【技术保护点】
１．一种油泵的排气构造，该油泵为自动变速器的油泵，并具备主泵和副泵，所述副泵与所述主泵并联配设且两者的吸入油路在滤油器的下游侧连结，在所述主泵的吸入口的下游侧且在排出口的上游侧设置有空气排出孔，其特征在于，设置有使所述空气排出孔连通到油盘内的油中的连通油路。

【技术特征摘要】
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【专利技术属性】
技术研发人员：大村智洋，
申请(专利权)人：加特可株式会社，
类型：发明
国别省市：JP