Title:
PURGE EJECTOR ASSEMBLY FOR AN ENGINE
Document Type and Number:
WIPO Patent Application WO/2018/113499
Kind Code:
A1
Abstract:
The present invention relates to a purge ejector assembly (10) for an engine, comprising: a first fluid passage (111); a nozzle device (20) disposed in said first fluid passage (111) and configured to raise the flow velocity of the air flowing in said first fluid passage (111); a first valve (30) disposed in said first fluid passage (111) at a position in-between an engine manifold port (122) and said nozzle device (20), said first valve (30) being configured to permit fluid to flow through said first valve (30) from said engine manifold port (122) toward said nozzle device (20), while restricting fluid to flow through said first valve from said nozzle device (20) toward said engine manifold port (122); a second fluid passage (113); a second valve (40) disposed in said second fluid passage (113) at a position in-between said engine manifold port (122) and a purge flow port (118), said second valve (40) being configured to permit fluid to flow through said second valve (40) from said purge flow port (118) toward said engine manifold port (122), while restricting fluid to flow through said second valve (40) from said engine manifold port (122) toward said purge flow port (118); a third fluid passage (115) extending from a second fluid passage position (124) located between said purge flow port (118) and said second valve (40) to a first fluid passage position (126) located between said nozzle device (20) and an air inlet channel port (112); a third valve (50) disposed in said third fluid passage (115) and configured to permit fluid to flow through said third valve (50) from said purge flow port (118) toward said air inlet channel port (112), while restricting fluid to flow through said third valve (50) from said air inlet channel port (112) toward said purge flow port (118). The present invention also relates to a vehicle comprising an evaporation fuel purge system (102) having a purge ejector assembly (10).
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Inventors:
CALAVIN BJORN (SE)
FREDHOLM ERIK (SE)
FREDHOLM ERIK (SE)
Application Number:
PCT/CN2017/113887
Publication Date:
June 28, 2018
Filing Date:
November 30, 2017
Export Citation:
Assignee:
NINGBO GEELY AUTOMOBILE RES & DEVELOPMENT CO LTD (CN)
International Classes:
F02M25/08
Foreign References:
| CN104033291A | 2014-09-10 | |||
| US20150096541A1 | 2015-04-09 | |||
| CN102192051A | 2011-09-21 | |||
| CN104121087A | 2014-10-29 | |||
| US20050274368A1 | 2005-12-15 | |||
| US20150369184A1 | 2015-12-24 |
Attorney, Agent or Firm:
WISEAST INTELLECTUAL PROPERTY LAW FIRM (CN)
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