Page 241 - The Tribology Handbook

B16 Pistons

Gudgeon pin dimensions

1;:::

PIN OVAL DEFORMATION 6 = (a - b)
2.2
2.2
2.1
2.1
I
50 - (OR = 900 (T-d 2.0 y
y
I
2.0
9- D'P%in)
z
1.9
r r L L 1 1 1.9 z
a
a
1.8 &
&
1.8
E
l I It I 1.7 g
i r
9 40- 1.6 9
2 a
I 1.5 u)
az 3
P 1.4 E
w
a 1.3 2
- 1.2 L
- 1.1 2
- 1.0 w
P
2o t - 0.8
0
- 0.9
- 0.7
350 Sbo I
lo' 1; 1$0 2b0 250 3bO
CYLINDER BORE DIAMETER (NOMINAL), mm
Figure 16.10 Gudgeon pin allowable oval deformation
I I I I I I I I I I I 1 I I 0
100 - 100
X
- r4
650
- 902
E 600 - L
0
z 0
.- 80:
ul
T
a- 550 -
u) 5
W i
E -
vi
u) 500 10 ;
w
3
P 450 - t
I-
2 w
3
z_ - 60:
a. 400 2
z
E z
a
0 -
0 350 50 5
3
e w
0
- 0
300 3
Q
40
-
250
- 1 %
200 I
0.100 150
GUDGEON PIN (5)
Figure 16.11 fatigue stress in gudgeon pins for various pin and piston geometries
B16.8