Title:
【発明の名称】燃料タンクの燃料吸込装置
Document Type and Number:
Japanese Patent JP2598091
Kind Code:
B2
Abstract:
A jet pump structure for a fuel tank having first and second chambers therein includes first, second and third fuel pipes all of which are connected to a vacuum chamber provided within the fuel tank. The first pipe returns oversupplied fuel into the vacuum chamber, the second pipe transfers fuel stored in the first chamber into the vacuum chamber, and the third pipe receives the fuel from the first and second pipes and discharge same into the second chamber. A flow guide member is provided within the first pipe, which receives the oversupplied fuel to form same into a swirl flow. The swirl flow is ejected from the first pipe as a jet flow into the vacuum chamber to provide a vacuum therearound within the vacuum chamber. The ejected swirl flow further works to seal the vacuum chamber against the third pipe so that the vacuum generated within the vacuum chamber is prevented from being released through the third pipe to effectively suck the fuel from the first chamber. The sucked fuel joins the ejected swirl flow and is discharged into the second chamber through the third pipe.
Inventors:
Michiaki Sasaki
Kiyokazu Yamamoto
Toshiyuki Matsumoto
Kiyokazu Yamamoto
Toshiyuki Matsumoto
Application Number:
JP17649788A
Publication Date:
April 09, 1997
Filing Date:
July 15, 1988
Export Citation:
Assignee:
Nissan Motor Co., Ltd
Automotive Electric Industry Co., Ltd.
Automotive Electric Industry Co., Ltd.
International Classes:
B60K15/077; F02M37/00; F02M37/02; F02M37/12; F02M37/18; F04F5/10; F04F5/44; F02M37/10; (IPC1-7): F02M37/12; B60K15/077; F02M37/00; F02M37/18; F04F5/10
Domestic Patent References:
| JP6385255A |
Attorney, Agent or Firm:
Fujiya Shiga (1 person outside)