3420 results about "Oxygen sensor" patented technology

A method for operating an engine having a first injector for injecting a first fuel into a cylinder of the engine and a second injector for injection a second fuel into said cylinder of the engine, the engine further having at least an exhaust gas oxygen sensor, the method comprising of varying an amount of said first fuel injection in response to said sensor under a first operating condition, and varying an amount of said second fuel injection in response to said sensor under a second operating condition.

The invention discloses a wearable electronic device comprising a first sensor, a second sensor, a local storage device capable of storing data and a wireless unit. The first sensor is arranged to be capable of detecting motion of a user, and the second sensor is arranged to be capable of detecting physiological features of the user. The invention further discloses a human body health monitoring management system. The human body health monitoring management system comprises the wearable electronic device, a portable terminal and a rear-end cloud server, wherein the portable terminal and the rear-end cloud server are connected with the wearable electronic device in a wireless mode. The wearable electronic device is provided with a wireless unit connected to the portable terminal. The portable terminal comprises a data storage unit, a data analyzing calculating unit and a network communication unit. The human body health monitoring management system combines data collected by an acceleration sensor and data collected by a blood oxygen sensor and then analyzes and calculates the data, and comprehensive health monitoring and health management procedures are provided for the user.

A pacemaker provides multi-chamber pacing with a pacing interval that can be programmed and adapted in response to cardiac output measurements for a given patient. In a typical embodiment, the pacemaker may provide pacing stimuli to both ventricles of a heart. In addition, the invention may include a measurement device that incorporates first and second blood oxygen saturation sensors for deployment in the left and right ventricle. The oxygen saturation sensors provide a differential measurement that can be used to calculate cardiac output in accordance with the Fick method. The oxygen saturation sensors may be carried by a common trans-septal lead that positions one of the sensors proximate the right ventricle and the other sensor proximate the left ventricle. Alternatively, the oxygen saturation sensors may be deployed via separate leads. Whether single or dual leads are used to carry the oxygen saturation sensors, a respective lead may optionally carry electrodes for sensing, pacing, or both.

A generic technique for the detection of air-fuel ratio (or torque) imbalances in a 4-cylinder engine equipped with either a production oxygen sensor or a wide-range A/F sensor (or a crankshaft torque sensor) is developed. The method is based on a novel frequency-domain characterization of pattern of imbalances and its geometric decomposition into four basic templates. Once the contribution of each basic template to the overall imbalances is computed, templates of opposite direction are imposed to restore air-fuel ratio (or torque) balance among cylinders. At any desired operating condition, elimination of imbalances is achieved within few engine cycles. The method is applicable to current and future engine technologies with variable valve actuation, fuel injectors and/or individual spark control.

The present invention provides an improved oxygen filling apparatus adapted to provide oxygen to oxygen cylinders for use in connection with EMS services, ambulances, fire departments, hospitals, veterinary clinics and other services and applications. The present invention includes an oxygen generator unit having at least one molecular sieve, a plurality of pressure sensors, an oxygen sensor, and a PLC control unit with a touch sensitive graphical screen interface configured to selectively display current and historical operational parameters. The oxygen filling apparatus may be adapted for wall mounting and may include a data communications port for remote access, monitoring and troubleshooting.

The invention relates to methods, apparatus, articles-of-manufacture, and coded data signals for measuring cardiac output, limb blood flow, perfusion, blood pressure, artery elasticity, and cardiovascular deterioration and disease, including performing these measurements on a continuous heart beat-by-beat basis, for humans and animals. Unlike empirical methods of other noninvasive blood pressure concepts, the invention is grounded on scientifically appropriate hemodynamic principles that studies have validated as accurate, and is practical for wide clinical use. Devices constructed in accordance with the invention can be comfortably employed for numerous applications, including hospital monitoring, physician's office cardiovascular disease management and drug therapy monitoring, home monitoring, and athletic applications.

The invention may be implemented in a variety of single or multi-sensor embodiments, such as: invasive pressure cannula sensor systems; non invasive pressure transducer arrays and piezo or other strain sensing materials that are placed against the skin above arteries; “upstream” pulsing-sensors (that apply single or multi-frequency vibrations that are measured “downstream” from the first placement location); other types of plethysmographic sensors; sonic/ultrasonic/Doppler sensors; MRI blood spin magnetizer/sensors; oxygen sensors; and electrocardiographic sensors, etc.

A gas generating system comprises an air separation module (ASM) in fluid communication with a nitrogen enriched air (NEA) line and an oxygen enriched air (OEA) line. A valve is positioned in the OEA line and an oxygen sensor is positioned in the NEA line. The valve can be modulated in response to the oxygen sensor to create a backpressure forcing more airflow into the NEA line. The OEA line can be backpressured until a predetermined NEA oxygen concentration is reached.

The invention provides a work system of an electronically controlled gasoline engine, comprising an air intake system, a fuel oil supply system, an ignition system as well as an electronic control system; the electronic control system consists of a sensor section, an electronic control unit ECU and an actuator section, wherein, the sensor section includes a throttle position sensor, an intake pressure and temperature sensor and an intake temperature sensor which are arranged on an intake pipe of an intake system, a camshaft position sensor, a coolant temperature sensor and a crankshaft position sensor which are arranged on the engine, a front oxygen sensor arranged in front of a three-way catalyst converter on an exhaust pipe of the engine, and the components of the sensor section are all connected with the ECU, and the actuator section consists of an electric fuel pump, an oil sprayer, an idle speed regulating valve and an ignition coil; the components of the actuator section are all connected with the ECU, and the ECU includes a fuel injection control program, an ignition control program and an idle speed control program; the system adopts reasonable control strategy and has comprehensive control function, good integrated performance of control function and fine system portability.

An electronic controller having at least one microprocessor controls the solenoid operated valve adding oxygen to the breathing loop of a closed circuit mixed gas rebreather with carbon dioxide scrubbing in maintenance of an oxygen set point in the rage of 0.13-0.50 without any need for monitoring or interpretation of signal data by the operator. The controller receives signals from at least one oxygen sensor located in the breathing loop and sends signals to an indicator: visual, aural, or tactile; during operation providing only intuitively understood normal functioning, limited time remaining, and bail out indications. Automatic diagnosis including oxygen sensor calibration, indication of actions required such as scrubber replacement, and confirmation of an action taken with signals from an action sensor are provided.

A sensor apparatus for determining oxygen concentration within a sealed package comprises a sensor capable of measuring oxygen concentration; and an inductive power receiver, wherein said sensor is powered by said inductive power receiver and communicates data representing said oxygen concentration wirelessly.

A coke oven includes an oven chamber, an uptake duct in fluid communication with the oven chamber, the uptake duct being configured to receive exhaust gases from the oven chamber, an uptake damper in fluid communication with the uptake duct, the uptake damper being positioned at any one of multiple positions, the uptake damper configured to control an oven draft, an actuator configured to alter the position of the uptake damper between the positions in response to a position instruction, a sensor configured to detect an operating condition of the coke oven, wherein the sensor includes one of a draft sensor, a temperature sensor configured to detect an uptake duct temperature or a sole flue temperature, and an oxygen sensor, and a controller being configured to provide the position instruction to the actuator in response to the operating condition detected by the sensor.

Emissions from systems that use a catalytic converter are substantially reduced by introducing hydrogen, or a hydrogen containing fluid or fuel component, into the exhaust stream being scrubbed by the catalytic converter, resulting in instant lightoff and a significant reduction in emissions. Hydrogen for injection into the exhaust stream may, optionally, be generated within the vehicle using heat recovered from the catalytic converter, and/or the engine or elsewhere in the exhaust system, by a thermoelectric generator, the electrical output of which may be used to perform electrolysis and/or to power a reformer in order to generate the hydrogen. The thermoelectric generator may be retrofit onto the catalytic converter, or integrated in a way that enhances thermoelectric generation, including providing a catalyst coated heat sink and integrated cooling pipes to enhance the thermal differential required for thermoelectric generation. Sensors such as an oxygen sensor and temperature sensor may be provided to assess converter performance and adjust the temperature differential to ensure that the temperature of the converter remains optimum.

The invention provides a fast treating device of biodegradable garbage, which mainly comprises a double-layer horizontal type cylinder body, a stirring device, a heating device, a ventilating device, a condensate water-collecting device, a condensate water-recharging device and a biological filtering and deodorizing device, wherein the double-layer horizontal type cylinder body is used for loading garbage; the stirring device is provided with a stirring shaft with a blade, and the stirring shaft is penetrated through the whole cylinder body; the heating device is used for heating up the garbage, leading the temperature of the garbage to be fast raised, and keeping the temperature within a certain range; the ventilating device is used for supplying the oxygen required by the biodegradation of the garbage and carrying out some steam (or steam); the condensate water-collecting device and the condensate water-recharging device are used for removing the generated steam and recharging and replenishing water under the condition that the garbage in the cylinder body is dried; and the biological filtering and deodorizing device is used for removing bad smell generated when biodegrading the garbage. The cylinder body is internally provided with a temperature sensor, a humidity sensor and an oxygen sensor, wherein the sensors are controlled by a garbage automatic control device; and the control device controls the heating device, the ventilating device and a percolate-recharging device according to the detecting values of the sensors. The fast treating device does not need to add strains, can not generate percolate, has fast fermentation speed, generates less bad smell, has no pollution emission, and has high automated operation degree.

Emissions from systems that use a catalytic converter are substantially reduced by introducing hydrogen, or a hydrogen containing fluid or fuel component, into the exhaust stream being scrubbed by the catalytic converter, resulting in instant lightoff and a significant reduction in emissions. Hydrogen for injection into the exhaust stream may, optionally, be generated within the vehicle using heat recovered from the catalytic converter, and/or the engine or elsewhere in the exhaust system, by a thermoelectric generator, the electrical output of which may be used to perform electrolysis and/or to power a reformer in order to generate the hydrogen. The thermoelectric generator may be retrofit onto the catalytic converter, or integrated in a way that enhances thermoelectric generation, including providing a catalyst coated heat sink and integrated cooling pipes to enhance the thermal differential required for thermoelectric generation. Sensors such as an oxygen sensor and temperature sensor may be provided to assess converter performance and adjust the temperature differential to ensure that the temperature of the converter remains optimum.

The invention is directed to an oxygen sensor arrangement 8 for sensing the oxygen in a breathing loop 29 of a breathing apparatus 100. The sensor arrangement 8 comprises at least one primary oxygen sensor 30 arranged to operatively measure the oxygen in the breathing loop 29, and a control arrangement 40 for obtaining measures from said oxygen sensor. A test channel arrangement 15, 362 is adapted to operatively provide a first gas having a first fraction of oxygen from a first supply 20 to said primary oxygen sensor 30 at a position 267 adjacent to or directly adjacent to said primary oxygen sensor. A first test valve arrangement 41 is arranged to operatively open and close the flow of said first gas through said test channel arrangement 15, 362. Said a control arrangement 40 is arranged to operatively actuate said first test valve arrangement 41 so as to provide an amount of said first gas to said primary oxygen sensor 30 via said test channel arrangement 15, 362.

The invention relates to a leadless platinum electrode slurry and process for preparation, wherein the platinum electrode slurry is prepared from 2-10mass% leadless glass adhesive, 2-10mass% metal oxide, 10-20mass% organic adhesive, and ultra-fine platinum powder at left amount. The production comprises leadless glass adhesive preparation, organic adhesive preparation, leadless platinum electrode slurry formulation, and slurry treatment. The invention can produce leadless platinum electrode slurry which lead content is lower than 100ppm, while the slurry applied in the electrode of zirconium oxide oxygen sensor can sinter at 1200DEG C, and via the formula adjustment of the leadless glass adhesive, the invention can produce platinum electrode slurry which can sinter at 800-1500DEG C. The electrode has the advantages of strong zirconium oxide substrate adhesive force, high conductivity, and stable electrical property.

Method and apparatus for monitoring, controlling and adjusting sleeper's environmental conditions of the space above entire bed surface by partially sealing and insulating the space above the entire bed surface; monitoring, controlling and adjusting temperature, quality, oxygen level and moisture level of the air within the partially sealed and insulated space according combinational factors of the sleeper's preferences, the sleeper's physiological conditions, heat transfer rate between sleeper's body and ambient air, the internal conditions and external conditions of the partially sealed and insulated space. In particular, a system uses a three-dimensional structure to partially seal and insulate an adequate amount of space above entire bed surface; uses physiological state sensors, thermometers, thermostats, heating device, cooling device, humidistat (hygrostat), humidifier and dehumidifier, oxygen sensor, oxygen supply device, air filtration device to monitor, control and adjust the temperature, moisture level, oxygen level and quality of the air inside the partially sealed and insulated space.