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.

Date of Patent:
Oct. 13, 2020

Filed:

Feb. 21, 2019
Applicant:

Mazda Motor Corporation, Aki-gun, Hiroshima, JP;

Inventors:

Yasunori Matoba, Hiroshima, JP;

Takaya Okugawa, Hiroshima, JP;

Yuki Hikichi, Hiroshima, JP;

Assignee:

Mazda Motor Corporation, Aki-gun, Hiroshima, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 23/02 (2006.01); F02B 33/38 (2006.01); F02B 33/44 (2006.01); F02D 41/00 (2006.01); F02B 39/16 (2006.01); F02B 39/12 (2006.01); F04D 25/02 (2006.01); F02D 23/00 (2006.01); F02D 41/06 (2006.01); F02B 37/16 (2006.01);
U.S. Cl.
CPC ...
F02D 23/02 (2013.01); F02B 33/38 (2013.01); F02B 33/44 (2013.01); F02B 39/12 (2013.01); F02B 39/16 (2013.01); F02D 23/005 (2013.01); F02D 41/0007 (2013.01); F04D 25/026 (2013.01); F02B 37/162 (2019.05); F02D 41/064 (2013.01); F02D 2200/022 (2013.01); F02D 2200/023 (2013.01); F02D 2200/04 (2013.01); F02D 2200/501 (2013.01); F02D 2250/11 (2013.01); F05B 2270/105 (2013.01); F05B 2270/602 (2013.01);
Abstract

A supercharging device for an engine is provided, which includes a supercharger provided to an intake passage of the engine, an actuator configured to drive the supercharger, and a controller including a processor configured to control the actuator to drive the supercharger when an operating state of the engine is in a given supercharging range, and to stop the supercharger when the operating state is in a non-supercharging range. The controller estimates an amount of condensate accumulated in an oil pan, and the controller causes the actuator to forcibly drive the supercharger when the estimated amount of condensate is more than a preset amount, even if the operating state is in the non-supercharging range.


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