초록 ▼

A hydraulic control apparatus, more particularly for operating a motor vehicle clutch release mechanism, comprising a master cylinder, a slave cylinder and a conduit connecting the master cylinder to the slave cylinder. The apparatus is in the form of separate modular units which are separately fill

A hydraulic control apparatus, more particularly for operating a motor vehicle clutch release mechanism, comprising a master cylinder, a slave cylinder and a conduit connecting the master cylinder to the slave cylinder. The apparatus is in the form of separate modular units which are separately filled with hydraulic fluid, and the filled modular units are shipped unconnected to a user. Each modular unit is provided with a leakproof quick-connect connector member, through which filling of the modular unit may be effected, and which mates with a complementary leakproof quick-connect connector member of another modular unit, such that after installation on a utilization device, a motor vehicle for example, complementary connector members are reconnected, thus opening ports in each connector member placing each member in fluid communication with the other. Preferably, the two connector members are provided with a one-way locking arrangement preventing separation of the connector members after coupling. Alternatively, the two connector members may be disconnected by a special tool to enable disconnecting the members without loss of hydraulic fluid, for the purpose of repair or replacement of components.

대표청구항 ▼

A hydraulic apparatus for installation on a machine, said apparatus being formed by providing a hydraulic cylinder having a bore and piston means disposed in said bore, providing a conduit communicating at one end thereof with said bore, filling said bore and said conduit with hydraulic fluid prior

A hydraulic apparatus for installation on a machine, said apparatus being formed by providing a hydraulic cylinder having a bore and piston means disposed in said bore, providing a conduit communicating at one end thereof with said bore, filling said bore and said conduit with hydraulic fluid prior to installation on the machine, and providing a coupling member on the other end of said conduit operative to normally close said other end of said conduit to prevent the passage of hydraulic fluid out of said other end of said conduit and operative in response to engagement with a complementary coupling member to open the other end of said conduit to allow the passage of hydraulic fluid through the other end of said conduit.