Title:
内燃機関の燃料噴射システム
Document Type and Number:
Japanese Patent JP5727617
Kind Code:
B2
Abstract:
The invention relates to fuel injection system of an internal combustion engine, comprising a tank (2), which is connected via a booster pump (1) to a pump interior (3) of a high-pressure pump (5), the pump interior (3) being connected via a dosing unit (10) to a pump working space (9), and furthermore the pump interior (3) being hydraulically connected to a return flow line (7) via an overflow valve (16), which comprises a valve housing (17), a valve plunger (18), and a valve spring (19) which is arranged in a spring space (15), characterized in that the spring space (15) is connected via a throttle circuit to the hydraulic space connected to the dosing unit (10). According to the invention, a fuel injection system is provided, in which the filling pressure of a pump working space (9) can be adjusted depending on the delivery quantity. This is achieved in that the spring space (15) is connected via a throttle circuit to the hydraulic space connected to the dosing unit (10).
Inventors:
Caller, Ahim
Application Number:
JP2013537051A
Publication Date:
June 03, 2015
Filing Date:
September 21, 2011
Export Citation:
Assignee:
Robert Bosch GmbH
International Classes:
F02M37/00; F02M37/22; F02M55/02; F02M59/36; F02M59/44; F02M59/46
Domestic Patent References:
| JP2011058369A | ||||
| JP2001165013A |
Foreign References:
| WO2011048827A1 | ||||
| US20070272217 |
Attorney, Agent or Firm:
Miaki Kametani
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto