ABSTRACT
HMB is one of the key components in integrated hydraulic systems. However, the manual design of HMB is a complex and time-consuming process; and hence, it is highly desirable to generate oil circuits automatically. There are two types of holes in an HMB: working holes and cross-drills. Working holes are holes connected with hydraulic component ports while cross-drills are auxiliary holes. While designing an HMB, we have to consider the layout of hydraulic components, the connectivity of ports, and many other design constraints. For ports that cannot be connected directly, cross-drills are necessary.
