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:
Sep. 10, 2019
Filed:
Dec. 19, 2017
Applicant:
Tula Technology, Inc., San Jose, CA (US);
Inventors:
Xin Yuan, Palo Alto, CA (US);
Louis J. Serrano, Los Gatos, CA (US);
Assignee:
Tula Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F01N 11/00 (2006.01); F02D 13/06 (2006.01); F01N 9/00 (2006.01); F02D 41/12 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0005 (2013.01); F01N 9/00 (2013.01); F01N 11/007 (2013.01); F02D 13/06 (2013.01); F02D 41/0087 (2013.01); F02D 41/12 (2013.01); F01N 2430/02 (2013.01); F01N 2430/08 (2013.01); F01N 2900/0412 (2013.01); F01N 2900/08 (2013.01); F02D 2041/0012 (2013.01); F02D 2200/0406 (2013.01); F02D 2200/602 (2013.01); Y02T 10/42 (2013.01); Y02T 10/47 (2013.01);
Abstract
Methods and arrangements for transitioning an engine between a deceleration cylinder cutoff (DCCO) state and an operational state are described. In one aspect, transitions from DCCO may begin with reactivating cylinders to pump air to reduce the pressure in the intake manifold prior to firing any cylinders. The number of pumping cycles, if any, is based on intake manifold absolute pressure (MAP).