CONTROL VALVE ASSEMBLY APPARATUS

摘要

The control valve assembly is suitable for oil control in hydraulic construction machinery. It has logic valve pairs connecting to common oil supply lines in a single housing to simplify piping connectins. A 1st pair of parallel dead-end oil passages at one end of a housing block are fed by a 1st pump. A 1st logic valve has a pump port and a pilot signal port with axes normal to the line of the oil passages. The pump port communicates with one oil passage. Ths axis of the valve work port is normal to both the pump port and the oil passage axes. The other oil passage connects to a 2nd valve forming a pair with the 1st valve. Other identical valve pairs also connect to the oil passages.