초록 ▼

A synchronized vehicle fluid drive system includes a vehicle, a pair of hydraulic motors operative to drive the opposite sides of the vehicle, a dual source of fluid pressure, a pair of open loop circuits individually communicating with the sources of fluid pressure and individually having a distrib

A synchronized vehicle fluid drive system includes a vehicle, a pair of hydraulic motors operative to drive the opposite sides of the vehicle, a dual source of fluid pressure, a pair of open loop circuits individually communicating with the sources of fluid pressure and individually having a distributor valve for selectively communicating its respective fluid pressure source with one of said motors for operation thereof, and an equalizing line disposed in fluid communication intermediate the open loop circuits for assuring that the input flow to each of the motors is substantially the same when straight line travel of the vehicle is desired. Advantageously, a blocking valve may be disposed in the equalizing line for deactivating it upon receiving a steering signal.

대표청구항 ▼

A synchronized vehicle fluid drive system comprising; a vehicle; a pair of motors operative to drive the opposite sides of said vehicle; a pair of pressure supplying fluid pumps; a pair of open loop circuits individually communicating one of said pumps with one of said motors through an open center

A synchronized vehicle fluid drive system comprising; a vehicle; a pair of motors operative to drive the opposite sides of said vehicle; a pair of pressure supplying fluid pumps; a pair of open loop circuits individually communicating one of said pumps with one of said motors through an open center distributor valve for operation thereof, each of said circuits also having a supply conduit with a load check valve therein upstream of Said distributor valve, and a synchronizing line disposed in fluid communication between said supply conduits of said open loop circuits connectably intermediate each of said load check valves and said distributor valves at the opposite ends thereof for equalizing fluid flow to said motors and to assure straight line travel of said vehicle when desired.