Mathematical Model for Elliptic Torus of Automotive Torque Converter and Fundamental Analysis of Its Effect on Performance

Table 1

Parameters of YH245 of different flatness ratios.

	Type
	a	b	c	d
Width (/mm)	69	63.5	58	52.5
Traditional flatness ratio ()	0.28	0.26	0.24	0.21
New flatness ratio (FR)	0.9	0.8	0.7	0.6