Sealing Performance of Bionic Striped Mud Pump Piston

Table 2

Experimental scheme and results.

Factor test	Stripe depth h (mm)	Angle α (°)	Pressure differences ΔP2 (MPa)	Increased rate of sealing β (%)
1	1	45	0.044	42.11
2	1	60	0.027	64.47
3	1	90	0.014	81.58
4	2	45	0.021	72.37
5	2	60	0.022	71.05
6	2	90	0.007	90.79
7	3	45	0.060	21.05
8	3	60	0.034	55.26
9	3	90	0.030	60.53
	62.72	45.18
	78.07	63.59
	45.61	77.63
	32.46	32.46