Thermo King Corporation

Doug Lenz

Bradley Michael Ludwig

Darrell Storlie

Steve Helgeson

Brian Meagher

Gary Connolly

David B Ziegler

Randal W Gast

Verlin Wirth

A mobile refrigeration system that includes an engine that is operable at a first speed greater than zero and a second speed greater than zero. A compressor is operable in response to the engine at a first speed and a second speed. The system also includes an evaporator, a first temperature sensor positioned to measure a first temperature, and a second temperature sensor positioned to measure a second temperature. A controller is operable to transition the engine between the first speed and the second speed in response to the first temperature exceeding a first predetermined value and the second temperature falling below a second predetermined value.

Mobile refrigeration system and control

A removable modular duct system for conducting air in a temperature-controlled cargo container. Temperature-controlled air produced and propelled by a refrigeration unit, is conducted along the modular duct system by one or more duct sections and a transition section that conducts air from the refrigeration unit to the duct sections. The air may be discharged laterally via lateral discharge openings in the duct sections. An end section may be coupled to the duct sections to discharge air at the end of the duct system.

Duct system for temperature-controlled cargo containers

Growing community of inventors

Prior Lake, MN, United States of America

Doug Lenz