Caterpillar Inc.

Kevin Knox

Kevin G Meyer

James Stephen Rice

Peter Hodges

James Elmer Winzeler

Perry G Cruce

Thomas Koch

Justin Floro

Michael Gross

Marvin P Schneider

Michael J Smith

Larry Wayne Carpenter

Robert C Gibson

Gerald N Coleman

Wade James Robel

Keith Edward Lawrence

Stephan Donald Roozenboom

James Josh Driscoll

Joel Scott Johnson

Lloyd E Thompson

William Elliott Moser

Brian James Oleson

A multi-speed transmission may include an input member and an output member disposed in a housing. A first planetary gear set, a second planetary gear set, a third planetary gear set, and a fourth planetary gear set may be disposed within the housing, each planetary gear set including a sun gear, a planet carrier, and a ring gear. Six control elements may be operably coupled to each of the planetary gear sets and selectively engagable to create a set of different gear ratios between the input member and the output member. The set of different gear ratios may include at least ten forward gear ratios and at least one reverse gear ratio.

Multi-speed transmission

A compact five-speed transmission planetary hear train includes a first, second, third, and fourth planetary gear sets between an input and an output as well as first, second, and third brakes and first, second and third clutches. The first, second and third brakes and first, second and third clutches are selectively actuatable to provide five different forward speeds and four different reverse speeds between the input and the output.

Configuration for compact planetary transmission

A compact five-speed transmission planetary gear train includes a first, second, third, and fourth planetary gear sets between an input and an output as well as first, second, and third brakes and first, second and third clutches. The first, second and third brakes and first, second and third clutches are selectively actuatable to provide five different forward speeds and a four different reverse speeds between the input and the output.

A compact five-speed transmission planetary gear train includes a first, second, third, fourth and fifth planetary gear sets between an input and an output as well as first, second, third and fourth brakes and first and second clutches. The first, second, third and fourth brakes and first and second clutches are selectively actuatable to provide five different forward speeds and a plurality of different reverse speeds between the input and the output.

Configuration for compact five speed planetary transmission

A compact five-speed transmission planetary gear train includes a first, second, third, and fourth planetary gear sets between an input and an output as well as first, second, third, and fourth brakes and first and second clutches. The first, second, third and fourth brakes and first and second clutches are selectively actuatable to provide five different forward speeds and a four different reverse speeds between the input and the output. The compact transmission also includes a first brake, second brake, third brake, fourth brake, first clutch, and second clutch associated with the planetary gear train, the first brake, second brake, third brake, fourth brake, first clutch, and second clutch being configured such that setting each forward and reverse speed of the compact transmission is accomplished via actuation of two of the first brake, second brake, third brake, fourth brake, first clutch, and second clutch.

A multi-speed transmission may include an input member and an output member disposed in a housing. A first planetary gear set, a second planetary gear set, a third planetary gear set, and a fourth planetary gear set may also be disposed in the housing, each planetary gear set including a sun gear, a planet carrier, and a ring gear. Six control elements may be operably coupled to the planetary gear sets and selectively engageable to create a set of different gear ratios between the input member and the output member, the set of different gear ratios including at least nine forward gear ratios and at least two reverse gear ratios.

A power source is provided for use with selective catalytic reduction systems for exhaust-gas purification. The power source includes a first cylinder group with a first air-intake passage and a first exhaust passage, and a second cylinder group with a second air-intake passage and a second exhaust passage. The second air-intake passage is fluidly isolated from the first air-intake passage. A fuel-supply device may be configured to supply fuel into the first exhaust passage, and a catalyst may be disposed downstream of the fuel-supply device to convert at least a portion of the exhaust stream in the first exhaust passage into ammonia.

Exhaust purification with on-board ammonia production

A variable compression ratio mechanism for an internal combustion engine that has an engine block and a crankshaft is disclosed. The variable compression ratio mechanism has a plurality of eccentric disks configured to support the crankshaft. Each of the plurality of eccentric disks has at least one cylindrical portion annularly surrounded by the engine block. The variable compression ratio mechanism also has at least one actuator configured to rotate the plurality of eccentric disks.

Eccentric crank variable compression ratio mechanism

A belt damper for a gear train is provided. An endless belt is wrapped around pulleys mounted to an idler gear and an output gear. The pulleys are mounted to splined shafts which are axially aligned with and connected to splined gear shafts on which the idler and output gears are mounted. Pressurized lubricant is supplied to both splined connections. The combination of the lubricant in the spline connections and the damping effect of the belt provides for an effective damping system. A tension device may also be applied to vary tension imposed on the belt.

Belt damper

At least two torque paths between a driver and a camshaft distribute dynamic torque applied to the camshaft, allowing for cancellation of undesirable torque components. The second torque path has a greater number of gears than the first torque path, and acts as a constraint on the camshaft, ameliorating discontinuities in camshaft rotation due to sudden changes in load on the camshaft.

Constraint idler

A fluid stream pulse damper having a fluid conduit defining a fluid path and a fluid flow direction. The conduit has an inlet end and an outlet end. A damper body in the conduit intersects the fluid path. An energy absorber attached to the damper body operates in resistance to fluid flowing in the conduit.

Growing community of inventors

Peoria, IL, United States of America

Kevin Knox