Polaris Industries Inc.

Jerry A Olson

Richard Harold Bates

Jeffrey A Eaton

Martin Elliott Sampson

Lyle Jay Dahlgren

Richard Allen Fredrickson

Jason A Eichenberger

Richard A Fredrickson

A snowmobile includes a frame having side walls and a support platform. The side walls cooperate with the support platform to define a tunnel. The snowmobile further includes an endless belt assembly supported by the frame, a motor supported by the frame, and a running board removably coupled to the tunnel.

Snowmobile

An air intake system for a vehicle is disclosed. The air intake system may include a first plenum housing having a fluid inlet and a fluid outlet and a fluid directing member which receives air from the fluid inlet of the plenum housing and directs the air away from the fluid outlet of the plenum housing.

Air intake system for controlling sound emission

A front snowmobile suspension of the type having a ski carried at the front end of a trailing arm. The front end of the trailing arm is pivotably secured to the chassis by a pair of generally transversely mounted radius rods. The rear end of the trailing arm is pivotably secured to the chassis at a position sufficiently closer to the chassis centerline than the front end of the trailing arm that the trailing arm is oriented at an angle of at least about 8&deg;, and preferably at least about 10&deg;, with respect to the chassis centerline. In this location the rear end of the trailing arm may be positioned inboard of at least a portion of a body panel (typically the side panel)&mdash;i.e. the rear end of the trailing arm is disposed between the body panel and the centerline of the chassis.

Snowmobile front suspension

A front snowmobile suspension of the type having a ski carried at the front end of a trailing arm. The rear end of the trailing arm is pivotably secured to the chassis and the front end of the trailing arm is pivotably secured to the chassis by a pair of generally transversely mounted radius rods which in turn are pivotably secured to the chassis. Each radius rod has an inner end pivotably attached to the chassis and an outer end pivotably attached to the front end of the trailing arm. The outer ends of the radius rods are positioned forwardly of the inner ends of the radius rods a sufficient distance that the radius rods, viewed from the top, form an angle of at least about 15&deg; with respect to a transverse plane that is perpendicular to the chassis centerline.

A front snowmobile suspension of the type having a ski carried at the front end of a trailing arm. The rear end of the trailing arm is pivotably secured to the chassis and the front end of the trailing arm is pivotably secured to the chassis by a pair of generally transversely mounted radius rods which in turn are pivotably secured to the chassis. Each radius rod has an inner end pivotably attached to the chassis and an outer end pivotably attached to the front end of the trailing arm. The outer ends of the radius rods are positioned forwardly of the inner ends of the radius rods a sufficient distance that the radius rods, viewed from the top, form an angle of at least about 15.degree. with respect to a transverse plane that is perpendicular to the chassis centerline.

A front snowmobile suspension of the type having left and right skis being secured to the chassis by left and right trailing arm ski suspension systems. The front end of the trailing arm includes a generally cylindrical sleeve for pivotably receiving the ski spindle. The top end of the cylindrical sleeve is located rearwardly of the bottom end, giving the sleeve and the ski spindle a rearwardly angled caster. The rear end of the trailing arm is pivotably secured to an adjustable link which in turn is secured to the chassis. The adjustable link is movable to change the caster of the cylindrical sleeve and the ski spindle.

Growing community of inventors

Roseau, MN, United States of America

Jerry A Olson