Method and apparatus for actuating vehicle transmission

Patent · Tue Nov 15 04:00:00 EST 1988

OSTI ID:6487755

Ishida, H; Ishihara, M; Uriuhara, M

This patent describes a method of actuating a vehicle parallel-gear transmission having gears and an internal lever for moving shift blocks connected with shift rods and shift forks for changing gear ratios of the transmission, a hydraulically controlled select actuator operatively connected to the internal lever for moving the internal lever in a select direction, a hydraulically controlled shift actuator operatively connected to the internal lever for moving the internal lever in a shift direction substantially normal to the select direction, a hydraulically controlled clutch actuator for connecting and disconnecting a clutch of the transmission, and a common fluid discharge passage connected to fluid discharge ports of the select and shift actuators and a fluid discharge port of the clutch actuator, the select and shift actuators being alternately actuatable to effect a gear changing operation.

• Assignee: Isuzu Motors Limited, Tokyo
• Patent Number(s): US 4784007
• OSTI ID: 6487755
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
ACTUATORS
DESIGN
ENGINES
EQUIPMENT
GEARS
HEAT ENGINES
HYDRAULIC EQUIPMENT
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
MECHANICAL TRANSMISSIONS
OPERATION