US 11,891,969 B2
Fuel-feeding device
Yuya Tanida, Obu (JP); and Keita Suzuki, Obu (JP)
Assigned to AISAN KOGYO KABUSHIKI KAISHA, Obu (JP)
Filed by AISAN KOGYO KABUSHIKI KAISHA, Obu (JP)
Filed on Nov. 28, 2022, as Appl. No. 17/994,645.
Claims priority of application No. 2021-192825 (JP), filed on Nov. 29, 2021.
Prior Publication US 2023/0167791 A1, Jun. 1, 2023
Int. Cl. F02M 37/10 (2006.01); F02M 37/00 (2006.01); F02D 33/00 (2006.01); B60K 15/03 (2006.01)
CPC F02M 37/0058 (2013.01) [B60K 15/03 (2013.01); F02D 33/003 (2013.01); F02M 37/007 (2013.01); F02M 37/0017 (2013.01); F02M 37/0082 (2013.01); F02M 37/10 (2013.01); B60K 2015/0321 (2013.01); B60K 2015/03243 (2013.01); B60K 2015/03256 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A fuel-feeding device, comprising:
a fuel tank storing fuel therein;
a fuel pump configured to feed the fuel in the fuel tank to an engine through a fuel-feeding conduit extending from the fuel tank;
an aspirator disposed along a branched conduit extending from the fuel-feeding conduit, wherein the aspirator is configured to generate a negative pressure therein in response to a flow of the fuel flowing through the branched conduit from the fuel-feeding conduit;
a negative pressure sensor configured to detect the negative pressure generated by the aspirator; and
a control device configured to control a revolution speed of the fuel pump,
wherein the control device is configured to determine a sign of vapor generation in the fuel stored in the fuel tank based on the negative pressure detected by the negative pressure sensor and to increase the revolution speed of the fuel pump when such a sign is determined.