The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 2026
Filed:
Oct. 27, 2022
Caterpillar Inc., Peoria, IL (US);
Elakhya Nedumaran, Chennai, IN;
Liang Fan, Wuxi, CN;
Jiawei Sheng, Wuxi, CN;
Tao Meng, Wuxi, CN;
Bahman Gozloo, Peoria, IL (US);
Dennis Lee Kroeger, Washington, IL (US);
Weixiu Wang, Wuxi, CN;
Yosabath Samraj M, Sholinganallur, IN;
Thanjavur Nagarajan Sriraam, Thanjavur, IN;
Caterpillar Inc., Peoria, IL (US);
Abstract
A system for regulating an environment within an operator cabin of a machine via a heating, ventilation, and air conditioning (HVAC) system includes a first sensor that generates a first signal of an amount of air pressure within the operator cabin, a second sensor that generates a second signal of an amount of carbon dioxide within the operator cabin, an air filtration element to direct pre-cleaned air into the operator cabin, an inlet valve disposed between the air filtration element and the HVAC system for controlling a flowrate of the pre-cleaned air to the HVAC system, and a controller. The controller actuates dynamic auto-control of the inlet valve to direct an optimally varying flowrate of the pre-cleaned air from the air filtration element to the HVAC system via the inlet valve to maximize a service life of the air filtration element.