Ab Volvo Penta

Volvo Trucks North America, Inc.

Ab Volvo

William Gremminger

Emil Hasl

Justin Frohock

David L Kenny

A multi-plate clutch transmission includes an arrangement for selectively engaging the clutch by moving the sleeve to cause one or more friction disks on a sleeve connected to a shaft to move into contact with one or more friction disks on a clutch basket connected to a gear driven by another gear and another shaft driven by a prime mover. An arrangement for selectively disengaging the clutch is provided that uses prime mover torque to move the one or more friction disks on the sleeve out of contact with the one or more.friction disks on the clutch basket.

Multi-plate clutch transmission and marine vehicle including a multi-plate clutch transmission

A tractor-type stern drive for a boat includes a drive housing pivotally attached to the stern of the boat about a steering axis. At least one pulling-type propeller is rotatably mounted to a forward end of the gear casing. The at least one propeller is powered by a vertical drive shaft perpendicular to the propeller shaft axis. The steering axis is offset forward of the drive shaft to help minimize steering torque about the steering axis.

Steerable tractor-type drive for boats

The present invention relates to a system, method, and computer program product for monitoring oil condition. In one embodiment, a marine powertrain is provided that includes a marine engine and a gear casing containing an oil and a gas. An engine speed sensor generates an output value, which indicates a speed of the marine engine. An oil sensor generates an output value, which indicates a condition of the oil. The condition of the oil is selectively monitored according to whether the marine engine is operating at a speed that is less than an engine speed threshold value, which denotes a speed of the marine engine at which the oil and the gas form an oil and aerated gas mixture.

System, method, and computer program product for monitoring oil condition

A transom shield assembly adapted to be coupled to a transom of an inboard/outboard boat includes a transom shield, and a cover, attachable to the transom shield, for covering a trim pump. The transom shield assembly permits a trim pump to be hydraulically connected to a trim cylinder to form a tilt/trim assembly and, after hydraulically connecting the trim pump to the trim cylinder to form a tilt/trim assembly, permits the tilt/trim assembly to be installed on the inboard/outboard boat without hydraulically disconnecting the trim pump and the trim cylinder.

Tilt/trim assembly and method

An over-the-highway truck or tractor equipped with a gear shift lever selectively foldable from an operating position to a folded position is disclosed. The gear shift lever includes upper and lower lever portions relatively telescopically and rotatably connected. The upper lever portion includes a generally L-shaped slot, while the lower lever portion carries a pin slidably engageable with and guided by the L-shaped slot for relative guiding movement of the lever portions. A tapered leg of the slot is arranged to allow relatively telescopic and pivotal movement between the lever portions and a foot of the slot extends laterally from the leg. The foot allows relatively rotatable movement between the lever portions to engage the pin and foot in the operating position. A coil spring urges the lever portions apart so that when the pin is within the leg the lever portions are relatively moveable axially. When the pin is within the leg the spring urges the first and second lever portions apart a predetermined distance. When the pin is positioned near an end of the leg remote from the foot, the portions are relatively pivotable between the aligned and out of the way lever portions.

Growing community of inventors

Virginia Beach, VA, United States of America

William Gremminger