Internal-combustion engines – Engine speed regulator – Idle speed control
Patent
1991-09-24
1992-12-15
Argenbright, Tony M.
Internal-combustion engines
Engine speed regulator
Idle speed control
123585, F02D 4116, F02M 2306
Patent
active
051707616
ABSTRACT:
An apparatus for controlling idling revolution speed of an internal combustion engine in which air at an upstream side of a throttle valve of an intake tube of the internal combustion engine is injected nearby a fuel injection valve from an injection port provided in an intake manifold of the internal combustion engine through a bypass passage and a flow rate control device. The flow rate control device is provided with a valve housing and a valve seat retaining member having a cylindrical wall disposed within the valve housing and a valve body which is moved forwardly and backwardly by a stepping motor is seated on a valve seat. A flow space is formed between the valve seat and an outlet port provided in the valve housing for communicating thereof with the injection port. The flow space includes an annular or semi-annular space formed between the valve housing and the valve seat retaining member and provides a long folded air flow passage to remove oil mist and dust from the air flowing toward the injection port.
REFERENCES:
patent: 5065718 (1991-11-01), Suzuki et al.
Fukaya Katsuyoshi
Kato Kinya
Aisan Kogyo Kabushiki Kaisha
Argenbright Tony M.
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