In-cylinder direct-injection engine and cylinder head

Details In-cylinder direct-injection engine and cylinder head In-cylinder direct-injection engine and cylinder head

2005-08-16

2005-08-16

Solis, Erick (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Injection of fuel onto igniter, deflector, heater, or atomizer

C123S302000, C123S305000

Reexamination Certificate

active

06928978

ABSTRACT:
When an inner wall of a cylinder head is viewed along an axis of a cylinder, a line that passes through a center of a fuel injection port and a center of a valve opening adjacent to the injection port is defined as a first line, and a line that is perpendicular to the first line is defined as a second line. A notch is formed in a part of the inner wall that defines the injection port. Specifically, when the inner wall is divided into sections by the second line, the notch is located in the section in which the adjacent opening exists. The notch is also displaced from the first line. Therefore, a sufficient thickness of the section corresponding to the valve seats of intake and exhaust valves are easily ensured.

REFERENCES:
patent: 5259348 (1993-11-01), Kobayashi et al.
patent: 5816215 (1998-10-01), Yoshikawa et al.
patent: 5908018 (1999-06-01), Suzuki
patent: 5927244 (1999-07-01), Yamauchi et al.
patent: 6334427 (2002-01-01), Nakayama et al.
patent: 6782867 (2004-08-01), Nakayama et al.
patent: 06-081657 (1994-03-01), None
patent: 10-008970 (1998-01-01), None

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