4王吉龙,赵学,杨啸等.四星单作用活塞缸偏置式径向柱塞马达[P].中国专利:CN 102606381 A, 2012-07-25.
5Christian Brecher, Stephan Baumler, Jens Rossaint. Calcula-tion of Kinematics and Friction of a Spindle Bearing Usinga Local EHL Friction Model[J]. Tribology Transactions,2013,56(2)245-254.