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Spark plug with high insulation properties and high capability to ignite
A spark plug according to the invention includes a metal shell that has a threaded portion with an outer diameter of 10 mm or less, or equal to 12 mm, an...
Automotive alternator having rectifier mounted on heatsink plate with
A rotor and a stator are contained in a housing composed of front and rear frames, and a rectifier is mounted on the rear frame and covered with a rear cover...
Infrared-ray absorption film
The invention aims at providing an infrared-ray absorption film having a low reflection factor and a high absorption ratio equivalent to those of gold black...
Ceramic catalyst body
An object of the present invention is to realize low pressure loss and high purification performance in a constitution in which a primary catalyst component and...
Separator for battery and lithium ion battery using the same
A battery separator of the invention is obtained by press forming a meltblown nonwoven fabric comprising 4-methyl-1-pentene polymer or a ...
Hydrogen-containing gas measurement sensor element and measuring method
A gas sensor element is provided which is designed to measure the concentration of hydrogen-containing gas accurately. The sensor element includes an oxygen pump...
Belt-drive system driven by internal combustion engine mounted on
Plural auxiliary devices such as a water pump and a generator coupled to a serpentine belt-drive system are driven by an internal combustion engine mounted on an...
Valve timing controller
A shoe housing receives a driving force from a crankshaft and a vane rotor rotates with a camshaft in combination. The vane rotor is received in the shoe housing...
Internal combustion engine cooling system
In a cooling system of an internal combustion engine, coolant flowing through a radiator and bypassing the radiator are mixed in a flow control valve controlled...
Physical quantity sensor and method for manufacturing the same
A capacitance type humidity sensor includes: a detection substrate including a detection portion on a first side of the detection substrate; and a circuit board...
Automotive air conditioner
A cooled air temperature detector detects the temperature of air that has just passed through a refrigerant evaporator. The detector detects air temperatures for...
System utilizing waste heat of internal combustion engine
A waste heat energy recovery system has a refrigerant cycle and a Rankine cycle. When the cycle operation is changed from the refrigerant cycle to the Rankine...
Method of manufacturing a gas sensor
An improved manufacturing method for a gas sensor is provided which is capable of establishing a required hermetic seal in a body of the gas sensor. The method...
Method and apparatus for storing main data with two checkup data
An electronic control unit has a microcomputer and a backup RAM, which stores its data irrespective of ON/OFF of an engine ignition switch. The backup RAM stores...
Atmospheric pressure sensing apparatus
An ECU computes a guard value K and limits an amount of change in a measured atmospheric pressure value of an atmospheric pressure sensor per unit time through...
Knock determining apparatus for internal combustion engine
For each predetermined crank angular interval, an output of a knock sensor is separated into a plurality of frequency components through a plurality of band-pass...
Travel assist system
A travel assist system searches a nearest service station based on navigation information and predicts a quantity of aqueous urea solution consumed until the...
Gas concentration detector
A gas concentration detector prevents deviation in output due to a difference in oxygen reactivity between electrode materials to accurately detect a specific...
Malfunction detecting apparatus for on-vehicle charging system
An apparatus is provided for detecting a malfunction in an on-vehicle charging system provided with a generator driven by an engine and a battery connected with...
Vehicle generator regulating apparatus
The vehicle generator regulating apparatus includes a switching device operating to allow a field current to flow into a field coil of the vehicle generator from...
Fuel cell system
A fuel cell system includes a fuel cell constructed by plural stacked cells, a circulation path through which a thermal medium is circulated into each cell, a...
Fuel cell system
In a fuel cell system, a fuel cell includes plural stacked cells, a circulation passage for circulating a thermal medium to the fuel cell. The fuel cell has...
Method for producing a soft magnetic material
The invention provides a method for preparing a soft magnetic material which meets demands for low iron loss, high density, high strength and high productivity....
Clutch state determining device
If a user presses a clutch pedal to perform gear-shifting operation while a vehicle is traveling, a clutch disc, which has been engaged with a flywheel rotating...
Piping joint structure
A piping joint structure includes a first piping member, a second piping member having at least a window portion, and a joint member provided with a body unit...
Variable valve timing controller for internal combustion engine
An ECU calculates an engine speed for calculating a camshaft phase based on a time period T.theta. in which a crankshaft rotates a sampling angle .theta.. The...
Load sensing system for seat
Each front sensor senses a load, which is applied to a front part of a seat, and each rear sensor senses a load, which is applied to a rear part of the seat. A...
Physical quantity sensor having multiple through holes
A semiconductor physical quantity sensor includes: a substrate; a semiconductor layer supported on the substrate; a trench disposed in the semiconductor layer;...
Intake air flow detecting device for internal combustion engine
An intake air flow detecting device is provided to an intake air passage, through which intake air flows into an internal combustion engine. Intake air flow is...
Structure of gas sensor designed to reduce mechanical damage to sensor
An improved structure of a gas sensor designed to withstand physical impact which may result in damage such as cracks to a sensor element built in the gas...
An inclination sensor is provided with a main body fixed to a vehicle, a pendulum supported by the main body so as to swing in response to an inclination of the...
The invention relates to a variable capacity type ejector capable of more precisely adjusting a flow rate of refrigerant in a range in which a displacement means...
Ejector cycle having multiple evaporators
A first evaporator evaporates refrigerant, which is outputted from an ejector. A refrigerant outlet of the first evaporator is connected to a suction inlet of a...
Vapor-compression refrigerant cycle system with refrigeration cycle and
A vapor-compression refrigerant cycle system with a refrigeration cycle and a Rankine cycle includes a compressor, a radiator, a gas-liquid separator, a...
Pressure detecting apparatus having solenoid valve and pressure sensor
A secondary air pressure detecting apparatus includes a solenoid valve and a pressure sensor. The solenoid valve defines a secondary air passage that introduces...
Exhaust gas purifying apparatus
An ECU controls an opening degree of an EGR gas switch valve based on a temperature of intake air and a load state of an engine in such a manner that a...
Apparatus for controlling engine rotation stop by estimating kinetic
energy stop position
A control apparatus for an engine increases an intake air quantity just before engine stop to increase a compression pressure in a compression stroke. As the...
Moisture sensor device and self-diagnosing method therefor
A moisture sensor device includes a sensor portion having a capacitance that is varied in accordance with surrounding humidity, a signal processor for processing...
Short circuit detecting circuit and abnormality monitoring signal
In order to drive an L load, FETs are disposed so as to be mirror-paired with FETs disposed at the power source side and the ground side respectively, and...
Switching regulator with frequency modulation to vary frequency based on a
load condition, and control method...
In a frequency modulation type switching regulator for producing an output voltage to a load, an error amplifier produces an error voltage indicative of a...
Motor control apparatus
An object of the present invention is to provide a motor control apparatus having excellent harmonic current control performance, that can simplify circuit...
Motor control apparatus
Before an amount of play in a rotation transmitting system is learned, for selecting a gear range, an overshooting control process is performed to cause the...
A spark plug is disclosed as including a metal shell 10 formed with first and second bores 10c, 10d and a stepped section 10e between the first and second bores,...
A pressure sensor chip includes a diaphragm and pads. A flexible printed circuit board (FPC) includes a resin sheet having a through-hole and wiring patterns...
Base material having thereon polyaniline-containing film surface, and
process for forming film surface on base...
In a heat exchanger having tubes and fins, a polyaniline film made of polyaniline and/or a derivative thereof is formed on the surfaces of the tubes and the...
A vehicular air-conditioner wherein when a detected temperature of an inverter temperature sensor (22g) exceeds a predetermined value, an inverter (6) driving an...
Exhaust emission control system for internal combustion engine
An exhaust emission control system for an internal combustion engine is located on a vehicle and provided with a particulate filter to accumulate particulate...
Receiver having a built-in antenna and method of impedance-matching for
A receiver includes an antenna, an impedance-matching circuit, a receive circuit, a control circuit, a digital-to-analog (D/A) converter, a mode switch, and an...
Optical device having optical waveguide and method for manufacturing the
An optical device includes: a silicon substrate; a plurality of silicon oxide columns having a rectangular plan shape; and a cavity disposed between the columns....
Printed board and meter unit provided therewith
A printed board has a board, an electrically insulative membrane, formed on the board, and an electrically conductive membrane, formed on the electrically...