| Patent Number |
Title Of Patent |
Date Issued |
| 7587938 |
Thermal type flow meter including a secondary heating device to suppress heat transfer |
September 15, 2009 |
| A thermal gas-flow measuring instrument has a first heating resistor placed in the gas to be measured. A temperature sensing resistor is positioned upstream or downstream of the first heating resistor and generates signals relating to the flow rate. Between the first heating resistor |
| 7565836 |
Thermal type flow sensor having a second control circuit to control a second heating resistor ab |
July 28, 2009 |
| A flow rate measuring element of a thermal type flow sensor is placed in the fluid to be measured. The element includes: a first heating resistor for measuring a flow rate; a second heating resistor for heating a support for the first heating resistor; and current control circuits and |
| 7552633 |
Thermal type gas flowmeter |
June 30, 2009 |
| A thermal type gas flowmeter comprising a sensor element which, in turn, comprises at least one first heating resistor, two or more resistors in fluid and a second heating resistor which is disposed between the first heating resistor and a housing supporting the sensor element. The first |
| 7526955 |
Flow meter and exhaust gas recirculation system using the same |
May 5, 2009 |
| The objects of the present invention are to provide a high-accuracy EGR sensor, and EGR system which adopts the above sensor to measure EGR rate. The gas flow meter comprises a sensor section for measuring fluid flow rate and controller for controlling signals transmitted into and out of |
| 7377261 |
Spark ignition engine and method of controlling combustion of the engine |
May 27, 2008 |
| In warming up operation when the temperature of an engine is low, heat release in a combustion chamber is delayed by making ignition timing immediately before the top dead center of compression stroke or later. Hereby, exhaust gas including a large quantity of unburned HC, oxygen and |
| 7270118 |
Control apparatus of engine |
September 18, 2007 |
| In an engine having a premixed combustion mode, an EGR flow rate estimating precision is deteriorated at a transient time, and a torque fluctuation and an exhaust gas deterioration are caused. In an engine control apparatus having a premixed combustion mode and a diffusion combustion |
| 7228840 |
Spark ignition device and internal combustion engine with the same |
June 12, 2007 |
| A plurality of spark electrodes are disposed in an arc shape on the surface or so as to be projected from the surface of an insulating member formed on a part of the wall face of a combustion chamber, and are formed so as to be in series electrically via discharging gaps.A spark plug is |
| 7155332 |
Method for obtaining exhaust gas flow quantity, exhaust gas flow measurement apparatus, and exha |
December 26, 2006 |
| An exhaust recirculation control system of the internal combustion engine computes an oxygen concentration in total intake air containing recirculation exhaust gas in a cylinder and the ratio between an oxygen quantity in the total intake air and a fuel injection quantity (oxygen qua |
| 7128051 |
Internal combustion engine, and control apparatus and method thereof |
October 31, 2006 |
| The amount of air to be introduced is controlled for each cylinder, whereby it is intended to make it possible to control the torque generated in each cylinder, perform an ultra-lean burn operation, purify the exhaust gas, and increase the output of an engine. An air flow control val |
| 7000380 |
Controller of cylinder injection type internal combustion engine |
February 21, 2006 |
| The present invention is intended to provide a control system for an direct injection internal combustion engine capable of effectively reducing the amounts of both HC and NOx exhausted from a combustion chamber during a period from the start of the engine operation to the stop of th |
