Patent · US Active

Naturally aspirated common rail diesel engine meeting ultra low PM emission by passive exhaust after treatment

US11391250B2 · kind B2 · utility

0Cited by

1References

4Claims

0Family size

Assignee

Mahindra and Mahindra Limited · IN

Inventors

Velusamy R · Chennai, IN
Dipankar Ray · Plano, US
Bhosale Sadanand · Chennai, IN
Hiranandani Pravesh · Chennai, IN
Rane Santosh · Chennai, IN
Suresh R · Chennai, IN
Dalvi Atmaram · Chennai, IN
Deepak S · Chennai, IN

Key dates

Filing date	Jul 26, 2019
Grant date	Jul 19, 2022
Priority date	—
Expiry date	Jul 26, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2255/1023
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Systems (100, 200 and 300) and methods (400, 500 and 600) for controlling exhaust gas emissions from naturally aspirated engine are disclosed. The system (100, 200 and 300) includes an open loop exhaust gas recirculation flow to the engine. The system (100, 200 and 300) includes a diesel oxidation catalyst (102, 202 and 302) mounted on or near exhaust manifold (106, 206 and 306) of the engine. Furthermore, the system (100 and 200) includes an exhaust gas mixing conduit (114 and 214) inserted into air intake conduit (104 and 204). The system (100, 200 and 300) further includes an exhaust gas recirculation valve (110, 210 and 310) mounted on cold side or a hot side of EGR cooler. Furthermore, the system (100, 210 and 310) includes an electronic control unit to control exhaust gas recirculation valve (110, 210 and 310) along with various other engine calibration parameters.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.