Patent ID: 7363934

Claim:
A control valve, comprising: a housing having an inside formed with a receiving chamber and having a peripheral wall formed with a cold water inlet, a hot water inlet and a water outlet each connected to the receiving chamber; a sleeve mounted in the receiving chamber of the housing and having an inside formed with a mounting chamber and a peripheral wall formed with a water channel, the sleeve having an end face formed with a cold water slot and a hot water slot, the cold water slot of the sleeve being connected to the mounting chamber, the peripheral wall of the sleeve being formed with a plurality of water passages connected to the hot water slot and the water channel, the peripheral wall of the sleeve being formed with a cold water inlet connected to the cold water inlet of the housing and a hot water inlet connected to the hot water inlet of the housing; a ceramic unit mounted in the housing and including a fixed plate secured to the sleeve and formed with two water inlet chambers aligning with the cold water slot and the hot water slot of the sleeve respectively, and a movable plate rotatably mounted in the receiving chamber of the housing and formed with a water outlet chamber connected to the two water inlet chambers of the fixed plate and the water outlet of the housing; a pressure balance unit mounted in the sleeve and including a tubular bushing mounted in the mounting chamber of the sleeve, and a tubular spindle movably mounted in the bushing; the bushing of the pressure balance unit having a first end formed with a first water inlet groove connected to the cold water slot of the sleeve and a second end formed with a second water inlet groove and a pressure regulating water outlet connected to the second water inlet groove and the water channel of the sleeve; the spindle of the pressure balance unit having a mediate portion formed with a first adjusting slot connected to the first water inlet groove of the bushing and a second adjusting slot connected to the second water inlet groove and the pressure regulating water outlet of the bushing.