T h e r e g u I a t o r V a I v e m a i n t a i n s a c o n s t a n t h y d r a u I i c p r e s s u r e ' r o m t h e A T F p u m p t o t h e h y d r a u I i c c o n t r o I s y s t e m , W h i I e

atso furnishing fluid to the tubracatro; system and torque converter. The

fluid from the ATF pump flows through B and

g . if ria unt"r;g from B flows through the valve orifice to the A cavity. This pressure of the A cavity

pushes the

,"gutator uatue 6 the rightside, andihis movement of the regulator valve

u ncovers the fluid porttothetorque

convener and the relief valve, The Jluid flows out to the torque converter

and the relief valve, and the regulator valve

moves to the left side. According to the level of the hydraulic

pressure through B, the position oJ the regulator valve

"r,""s"., ,"d ,t " "mount of fluii Jrom B' through torque converter also

changes. This operation is continued,

maintaining the line Pressure.

NOTE; When used,

"1eft" or "right" indicates direction on the illustration below

ISl9E*9tatr ro LUBRrcArroN

t t

I n c r e a s e s i n h y d r a u I i c p r e s s u r e a c c o r d i n g t o t o r q u e a r e p e r f o r m e d b y t h e r e g u I a t o r V a I v e u s i n g s t a t o r t o r q u e r e a c t | o

The stator shah is splined with the stator in the torque convener, and

its arm end contacts the regulator spring cap'

W h e n t h e v e h i c | e i s a c c e I e r a t | n g o r c I i m b i n g { T o r q u e c o n v e r t e r R a n g e ) , s t a t o r t o r q u e r e a c t i o n a c t s o n t h e s t a t o r s h a f

and the stator arm pushes the regul;ior spring cap in the direction oi

the arrow in proportion to the reaction The

s t a t o r r e a c t i o n S p r i n g c o m p r e s s e s , a n d t h e r e g u I a t o r v a I v e m o v e s t o i n c r e a s e t h e I i n e p r e s s u r e W h i c h i s r e g u I a t e d b y

the regulator valve. The line pressure reacheJits maximum when the stator

torque reaction reaches its maximum'

REGULATOR VALVE

REGULATOR

SPRING CAP

STATOR SHAFT

STATOR SHAFT ARM

(cont'd)

REGULATOR VALVE

TOROE COM/ERTER

14-45

Table of Contents