Back to results
US 6,186,112 B1Granted
Fuel supply apparatus for internal combustion engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsJun Takahashi, Masaaki Yano, Daichi Yamazaki, Masanori Sugiyama, Akira Yasuki, Ryuji Shibata
Life of this patent
Estimating the term…
Abstract
In order to prevent fuel leakage from a high pressure fuel pipe at a low temperature, a sealing capacity of a seal member provided in a fuel transfer portion of a high pressure fuel pipe is estimated in accordance with various conditions and the fuel pressure within the high pressure fuel pipe is controlled on the basis of the estimated sealing capacity so as to secure a sealing property in the fuel transfer portion.
Claims24
A fuel supply apparatus for an internal combustion engine comprising:
- a high pressure fuel pipe for supplying fuel pressurized by a high pressure fuel pump to an injector of an internal combustion engine;
- a seal member for sealing a fuel transfer portion of the high pressure fuel pipe;
- and
- a fuel pressure controller for estimating a sealing capacity of the seal member and controlling fuel pressure within said high pressure fuel pipe on the basis of said estimated sealing capacity so that a predetermined sealing property can be maintained at the fuel transfer portion.
1 more element
Dependencies are inferred from the claim text.