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Patent Searching and Data


Title:
WORKING GAS CIRCULATION TYPE ENGINE
Document Type and Number:
Japanese Patent JP2014005801
Kind Code:
A
Abstract:

To provide a working gas circulation type engine the engine startability of which can be improved.

Fig.2 shows a relationship between a lapsed time after starting and an integrated value NeSUM of an engine speed. When a starter signal is changed over from OFF into ON at a time t0, cranking is started. The integrated value NeSUM starts to rise after the cranking is started, and further rises along with explosion in a combustion chamber, and reaches a threshold value NeTH at a time t1. In this embodiment, A O2 supply amount is fixed before the time t1, and feedback control is executed after the time t1 so that an O2 concentration in working gas flowing in a circulation path 12 is a reference concentration or lower.


Inventors:
Misawa, Seitaro
Application Number:
JP2012000143164
Publication Date:
January 16, 2014
Filing Date:
June 26, 2012
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F02D21/04; F02B47/10; F02D21/06; F02M21/02; F02M25/00; F02M25/10
Attorney, Agent or Firm:
高橋 英樹
高田 守
大西 秀和