Title:
A constant-speed multi-pressure fuel injection system by which the dynamic range used in an internal-combustion engine was improved
Document Type and Number:
Japanese Patent JP6019464
Kind Code:
B2
Abstract:
A fuel injection system operates under a predetermined substantially constant pump speed and creates multi-pressure levels by diverting the fuel flow. Fuel pressure can be switched from one steady pressure level to another level on-demand instantly. This superimposes and overlaps typical fuel injection events in the linear operating ranges under different pressure levels, significantly increasing the fuel injection dynamic range. The dynamic range is further increased when another predetermined constant pump speed is assigned. Thus, the system saves fuel and reduces exhaust emission in city driving when gas pedal is released including idle. The same system can instantly deliver additional fuel on-demand for extra power beyond engine rating producing a sport-car-like performance.
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Inventors:
Hou, Show L
Application Number:
JP2011139523A
Publication Date:
November 02, 2016
Filing Date:
June 23, 2011
Export Citation:
Assignee:
TMC Company
International Classes:
F02M37/04; F02D41/32; F02D41/38; F02M51/02; F02M63/02; F02M69/00; F02M69/54; F02D33/00; F02M37/00
Domestic Patent References:
| JP791342A | ||||
| JP63120848A | ||||
| JP11287165A | ||||
| JP11210597A | ||||
| JP20024965A | ||||
| JP5921081U | ||||
| JP7286568A | ||||
| JP882264A | ||||
| JP8334076A | ||||
| JP2001221085A | ||||
| JP9195872A |
Attorney, Agent or Firm:
Yohei Kinoshita
Kamekawa Takumi
Kamekawa Takumi
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