Hydraulic control apparatus

A hydraulic control apparatus for a hydraulically operated vehicular transmission having control valves corresponding to hydraulic engaging elements provided in said transmission, each of said control valves controlling the supply and discharge of hydraulic oil to and from each of said corresponding hydraulic engaging elements, said hydraulic control apparatus comprising:

• an oil supply passage which is connected to a hydraulic oil source and into which a throttle is interposed, said oil supply passage being connected to oil passages which are on a downstream side of each of said control valves and which are to be communicated with said hydraulic engaging elements;
• check valves which are interposed in said oil passages such that said check valves allow for the hydraulic oil flow only from said oil supply passage to said oil passages on the downstream side of each of said control valves;
• and
• wherein said control valves are disposed in an elevation higher than said hydraulic engaging elements.