-
公开(公告)号：US11118952B2
公开(公告)日：2021-09-14
申请号：US16519050
申请日：2019-07-23
发明人： Frank Warren Hunt , Anthony P. Boone , Prashanth Avireddi , Nicholas Ryan Dal Pra , Zachariah Rabatah
摘要： In some examples, a system includes an airflow sensor disposed at least partially within an air intake system for an engine. The airflow sensor may be configured to measure a flow rate of air flowing past the airflow sensor in the air intake system, and includes a sensor element and a heater associated with the sensor element. A heater control circuit may control the heater to control a temperature of the sensor element. Further, a processor may be configured by executable instructions to cause the heater control circuit to, in a first operation mode, maintain the sensor element at a higher temperature range, and, in a second operation mode, maintain the sensor element at a lower temperature range that is above an ambient temperature and that is lower than the higher temperature range.
-
公开(公告)号：US10781775B2
公开(公告)日：2020-09-22
申请号：US15884671
申请日：2018-01-31
发明人： Prashanth Avireddi , Anthony Boone , Frank Hunt , Naoki Oka , Zachariah Rabatah
IPC分类号： F02M35/10 , F02M35/02 , F02M35/024 , G01F1/684 , G01F1/78
摘要： In some examples, a mass airflow sensor apparatus includes a housing having a tubular bore for passage of air, with an airflow sensor disposed at least partially within the tubular bore. The airflow sensor may be configured to measure a flow rate of air flowing past the airflow sensor. A focus component may be disposed upstream of the mass airflow sensor, the focus component including a cylindrical tubular focus member suspended within the bore. Further, a nozzle may be disposed upstream of the focus component. The nozzle may include a conical inner surface angled toward a center of the bore. In addition, a grid component may be disposed upstream of the focus component. The grid component may include a mesh grid including a plurality of openings for smoothing a flow of air flowing toward the airflow sensor.
-
搜索结果
2 条记录 (耗时 0.012 秒)
