Denso Corporation

So-ken Corporation

Kazuaki Ueda

Kengo Ito

Yuusuke Yoshida

Shuhei Oe

Shunichi Takeda

Fumiaki Aoki

Tomoaki Nakano

Shigeru Maeda

Seiji Yaoko

Hideaki Kosuge

Atsushi Honda

Shohei Ishida

Hikaru Kokumai

Masataka Nishikori

A flow rate measurement device includes a housing having a main flow path, a sub flow path formed inside the housing to allow a part of a fluid to be detected flowing through the main flow path, an inlet portion that allows the fluid to be measured flowing in the main flow path to flow into the sub flow path, an outlet portion that allows the fluid to be measured flowing in the sub flow path to flow out to the main flow path, a flow rate detection unit that is provided between the inlet portion and the outlet portion in the sub flow path and detects a flow rate of the fluid to be measured flowing through the sub flow path, and a communication hole that is provided between the flow rate detection unit and the outlet portion and communicates the sub flow path and the main flow path.

Flow rate measurement device

A flowmeter is disposed in a passage through which a fluid flows. The flowmeter includes a first passage and a second passage. The first passage defines an opening through which a part of the fluid flows into the flowmeter from the passage. The second passage branches off from the first passage and includes a flow rate detector configured to detect a flow rate of the fluid flowing through the second passage from the first passage. The second passage has one end at which the second passage branches off from the first passage and the other end. The second passage includes at least one end opening at the other end and an inflow reducer configured to restrict the fluid from flowing into the second passage through the at least one end opening.

Flowmeter

A flowmeter is inserted into a main passage through which a target fluid flows. The flowmeter includes a housing, a sub passage, an inlet portion, an outlet portion, a flow rate detector, and a protrusion. The housing includes a side surface and a tip end surface. A part of the target fluid flows into the sub passage from the main passage. The target fluid flows into the sub passage through the inlet portion and flows out of the sub passage through the outlet portion. The flow rate detector is configured to detect a flow rate of the target fluid flowing through the sub passage. The tip end surface includes a first end area and a second end area. The protrusion protrudes from the tip end surface and is located in both the first end area and the second end area.

An ignition apparatus for internal combustion engines is provided. The ignition apparatus is equipped with an ECU. The ECU monitors a path length of a discharge of a spark for a period of time in which a second circuit delivers or inputs energy in the form of a threshold value determination. When the path length has become too short, the ECU determines that ignition is expected to be delayed and then selects a special mode to control the delay of the ignition. The ECU increase a target value of an energy input amount. This enables the delay of ignition resulting from a short extension of the path length to be minimized. The ignition apparatus equipped with the second circuit to continue the discharge of sparks is, thus, capable of reducing a variation in ignition without the need for uniformly increasing the energy input amount.

Ignition apparatus having circuit to continue spark discharge in an internal combustion engine

A control system for an internal combustion engine has an intake valve, an exhaust valve, and an exhaust purifying catalyst that purifies exhaust gas after combustion of a fuel. During a fuel cut in which no fuel is supplied, a closing timing of the intake valve is controlled to a delayed angle side more than at a timing when the fuel is supplied and to a delayed angle side more than at a timing at a bottom dead center of an intake stroke, and an opening timing of the exhaust valve is controlled to an advanced angle side more than at the timing when the fuel is supplied and to an advanced angle side more than at the timing at the bottom dead center of an expansion stroke.

Control system for internal combustion engine

Growing community of inventors

Nisshin, Japan

Kazuaki Ueda