Cummins Inc.

Other

Ryan Edward Schultz

Anthony Kyle Perfetto

J Steven Kolhouse

Samuel C Geckler

David J Stroh

Adam C Cecil

Adrian P Dale

Anshul Shambhav

Thomas M Yonushonis

Leon A LaPointe

Daniel J Mohr

Robin J Bremmer

Guntis Ozers

Thomas A Olson

Anshul Shambav

Timothy R McGreal

An intake air circuit is structured to transmit intake air from a turbocharger compressor to an intake manifold of an engine. A charge air cooler ('CAC'), a bypass line, and a bypass heater are each positioned along the intake air circuit in parallel with each other. A first control valve is structured to controllably divert the intake air around the CAC. A second control valve is structured to controllably divert the intake air around at least one of the bypass line and the bypass heater. A controller operatively coupled to each of the engine, and the first and second control valves is structured to control each of the first and second control valves to cause the intake air to flow along a determined desired flow path based on each of measured ambient temperature and measured engine load.

Engine intake air system including CAC bypass and separate bypass heater, and high-efficiency spark-ignited direct injection liquid propane engine architectures including same

An internal combustion engine system includes an engine with a plurality of pistons housed in respective ones of a plurality of cylinders, an air intake system to provide air to the plurality of cylinders through respective ones of a plurality of intake valves, an exhaust system to release exhaust gas from the plurality of cylinders through respective one of a plurality of exhaust valves. A valve train is provided for cylinder deactivation of a first part of the plurality of cylinders and compression release braking on a second part of the plurality of cylinders.

Valve train with cylinder deactivation and compression release

A system for diagnosing engine braking performance of an engine comprising a plurality of cylinders comprises an exhaust manifold pressure sensor configured to detect an exhaust manifold pressure corresponding to exhaust gas emitted from a plurality of cylinders. A controller is configured to determine an exhaust manifold pressure value corresponding to at least one cylinder of the plurality of cylinders that is being used for engine braking, from an exhaust manifold pressure sensor signal received from the exhaust manifold pressure sensor. The controller is also configured to determine an engine braking value based on the exhaust manifold pressure value.

Systems and methods for engine brake diagnostics and control

A system is provided for controlling operation of an engine brake system of an engine in a vehicle. The system includes a controller having an over-speed condition detection unit and an operation mode transition unit. The over-speed condition detection unit is configured to detect an over-speed condition based on a current engine speed and a fuel cut limit speed, the fuel cut limit speed being a predetermined engine speed at which fuel supplied to the engine is suspended. The operation mode transition unit is configured to control the operation of the engine brake system by transitioning the controller between a plurality of brake operation modes based on at least one transition parameter.

Automatic engine brake control systems and methods

An internal combustion engine system includes an engine with a plurality of pistons housed in respective ones of a plurality of cylinders, an air intake system to provide air to the plurality of cylinders through respective ones of a plurality of intake valves, an exhaust system to release exhaust gas from the plurality of cylinders through respective one of a plurality of exhaust valves. The internal combustion engine uses vacuum braking and/or compression release braking in response to one or more braking conditions.

Vacuum and compression release braking in spark-ignited engines

A transmission apparatus includes a chain operatively engaged with a driver sprocket assembly and a driven sprocket assembly, a tensioner bracket including a roller engaged with the chain, a tensioner rod including a plurality of spaced apart flange portions engageable with a brace and a threaded portion extending through an opening formed in the tensioner bracket and screwably attached to a plate. An operator may unscrew the tensioner rod and pass at least one of the flange portions through a slot in the brace to slacken the chain. The operator may also position at least one flange portion in a narrow end of the slot, and screw the tensioner rod to press that flange against the brace to tighten the chain.

Transmission apparatus and method

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Columbus, IN, United States of America

Ryan Edward Schultz