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7614284 |
Oil life monitoring system for a diesel engine
An oil life monitoring system for a diesel engine system includes a viscosity loss module, a viscosity gain module, and a remaining oil life module. The viscosity loss module determines a...
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7568894 |
Hermetic compressor
A hermetic compressor includes a housing which accommodates a motor and a compressing mechanism, an oil surface sensor mounted to a side wall of the housing, and refrigerating machine oil. The oil...
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7523646 |
Filtering and measuring apparatus for oils
Disclosed is a method for measuring at least one state characteristic of oil or fat in a device that uses oil or fat and is provided with a filtering apparatus ( 1; 101 ) comprising a filter...
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7521945 |
Oil monitoring system
An embodiment of the present invention provides for a sensing element comprising a non-conductive housing with three chambers for detecting oil conductivity, additive depletion and oxidation, and...
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7493799 |
System and method for dynamic lubrication adjustment for a lubrication analysis system
A system and methodology is provided for dynamically adjusting fluids that operate as a lubricant in a machine. The system includes a control module having a processor and one or more sensors...
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7426855 |
Method and apparatus for testing the adhesive strength of overlays of plain bearing bushings
A method and an apparatus for testing the adhesive strength of overlays attached to the inside of plain bearing bushings. The method is characterized in specifying clearance between the plain...
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7402800 |
Method and device for the continuous determination of damage to systems used for the post-treatment of heat engine exhaust gases
The invention relates to a method for the continuous determination of the damage to at least one system ( 7 ) used for the post-treatment of exhaust gases from an internal combustion engine ( 2 ),...
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7387101 |
Oil pan for engine having a shield member covering an air hole of an oil sensor
An oil level sensor for detecting an oil level is arranged in an engine oil pan. The oil level sensor includes a mounting section and a sensing section. An air hole is formed at an upper end of a...
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7380441 |
High throughput screening methods for lubricating oil compositions
Method for determining dispersancy performance for a plurality of fluid samples of different compositions is provided. Each sample includes one or more base oils of lubricating viscosity and one or...
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7370514 |
Determining quality of lubricating oils in use
Resistivity ρ values of a lubricating oil are repeatedly determined at a predetermined temperature (range) as it is in use in a working mechanism such as a vehicle engine. Such accumulated...
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7367223 |
Method and device for assessing the quality of a fuel, in particular a diesel or petrol fuel
Fuels that are used nowadays can have a different densities or different heating values. Even when filling the fuel tank ( 7 ) the quality of the fuel in the fuel tank ( 7 ) can change since...
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7350400 |
Test method to measure lubricant mobility on a hard drive disk
A method for measuring the mobility of a lubricant located on the top surface of a disk used in hard disk drives. The method includes forming one or more scribe lines in a lubricant layer of the...
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7299682 |
Method and apparatus for estimating basicity of a used, all-loss cylinder lubricant
A method and apparatus for determining the total base number of a used lubricant from an open, all loss, lubricating system. An AC voltage signal is applied between electrodes immersed in the used...
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7297408 |
Antifouling coating for sensor transducers used for monitoring fluid properties
A coating for sensor transducers that transmit a signal to—and/or receive a signal from—a fluid, either liquid or gas, in contact with the transducer. In particular the coating minimizes or...
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7293450 |
Oil quality sensor structure for permanent applications
An oil quality sensor system comprise an acoustic wave viscosity and an etch rate sensor. The etch rate sensor system includes a piezoelectric substrate and one or more sensing layers configured...
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7287431 |
Wireless oil filter sensor
A wireless oil filter sensing system includes an oil filter and a sensing mechanism that is connectable to the oil filter. The sensing mechanism includes one or more acoustic wave sensing elements...
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7275418 |
Method for the quantitative detection of two contaminants in a fluid
The quantitative determination of two contaminants of a fluid is carried out in the following steps: detection of permittivity ε and viscosity v of the fluid; determination of the quantity of the...
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7266472 |
Method for determinating of an oil condition
A method for determining an oil condition, namely, an oil condition corresponding to the oil age or oil damage, with the following steps: a) measuring a temperature of the oil or of the part...
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7260982 |
Method and device for detecting the entry of fuel into the lubricating oil of an internal combustion engine
A process for enabling the detection of an entry of fuel into the lubricating oil of an internal combustion engine can be implemented relatively simply. The process measures a value representative...
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7257984 |
Miniaturized sensor device for detecting characteristics of a fluid, in particular a lubricating oil
A miniaturized sensor device comprises at least one pair of active projecting elements or cantilevers, which are set parallel to one another and at a micrometric or sub-micrometric distance apart...
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7254990 |
Machine fluid sensor
A sensor for sensing one or more properties of a vehicle fluid has a tuning fork resonator adapted to contact the fluid. The tuning fork resonator comprises two tines and is operable to oscillate...
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7243549 |
Acoustic wave lubricity sensor
A lubricity sensor includes a flexural plate wave device and a face shear mode bulk acoustic wave device, which is associated with and located proximate to the flexural plate wave device. The face...
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7228727 |
Lubricity measurement using MEMS
A system that facilitates in situ determination of lubricity in a fluid comprises a multi-element sensor positioned within a machine, wherein the multi-element sensor obtains data regarding a...
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7188514 |
Method for providing an oil change indication to an operator of an internal combustion engine
A method for providing an oil change indication to an operator of an internal combustion engine having an exhaust-after-treatment system requiring regeneration, The method includes detecting...
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7150182 |
High throughput screening methods for lubricating oil compositions
A method for determining storage stability for a plurality of fluid lubricant samples of different lubricating oil compositions is provided. Each sample includes a combination of one or more base...
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7137289 |
High throughput screening methods for lubricating oil compositions
Method for determining dispersancy performance for a plurality of fluid samples of different compositions is provided. Each sample includes one or more base oils of lubricating viscosity and one or...
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7134323 |
System and method for dynamic lubrication adjustment for a lubrication analysis system
A system and methodology is provided for dynamically adjusting fluids that operate as a lubricant in a machine. The system includes a control module having a processor and one or more sensors...
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7129715 |
Oil deterioration sensor
An engine oil deterioration detection apparatus includes a sensing capacitor CS formed of paired electrodes dipped into engine oil whose deterioration is to be detected, the engine oil...
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7117722 |
Method for determining viscosity of water-in-oil emulsions
Method to determine the viscosity of a water-in-oil emulsion that will be formed by an oil comprising organic acids when mixed with water comprising: determining the value of the expression:
η...
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7104117 |
Device and method for determining the quality of a medium, particularly of a lubricant and/or coolant
A device ( 1 ) for determining the qualify of a medium, particularly of a lubricant and/or cutting oil, includes a number of sensors ( 3, 4, 5, 6, 7 ) that emit electric output signals according to...
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7086280 |
Aeration sensing device
A system for detecting aeration in a lubricant includes a sensor having a pair of spaced apart concentric rings forming a first capacitor through which the lubricant flows and a capacitor segment...
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7082774 |
Compressor oil removal in ammonia refrigeration system
Automatic oil removal from an ammonia evaporator/low pressure vessel in a refrigeration system is disclosed. A liquid refrigerant level controller is utilized to drain the oil. The controller works...
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7066280 |
Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations
An improved drill bit for use in drilling operations in a wellbore comprising a bit body including a plurality of bit legs, each supporting a rolling cone cutter, a lubrication system for a rolling...
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7059169 |
Fluid aeration test apparatus and method
A test apparatus for measuring the air entrainment characteristics of a fluid includes a reservoir for containing the fluid, an aerator apparatus to cause air entrainment of the fluid, and a...
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7043969 |
Machine fluid sensor and method
A method for analyzing a fluid contained within a machine, comprising the steps of providing a machine including a passage for containing a fluid; placing a sensor including a mechanical resonator...
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7028532 |
Fuel property determination system
A fuel property determination system for an internal combustion engine is comprised of a specific gravity detecting section which detects a specific gravity of fuel used in the engine and a fuel...
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7030629 |
In line fluid quality sensor
A fluid quality sensor ( 20 ) includes a first electrode ( 24 ) that has a fluid passageway ( 22 ) that is adapted to be placed in line with at least one fluid conduit ( 30 ). A housing ( 40 ) is...
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7017392 |
System for monitoring dilution
The system for monitoring dilution has a commodity being stored separately from a first fluid. The commodity has a predetermined distinguishing parameter (DP 2 ) and the first fluid has a...
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6984993 |
Method and apparatus for making high-precision measurements
A method and apparatus for measuring a predetermined parameter, by providing a displaceable sensor on a mounting member such that the displaceable sensor changes in location, form or length with...
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6952951 |
Method and device for measuring the viscosity of a liquid
A method and a device are proposed for measuring the viscosity of a liquid ( 12 ), a conclusion being reached on the temperature of the liquid ( 12 at the location of the viscosity sensor ( 20 ),...
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6920779 |
Method of estimating engine lubricant condition
A motor vehicle having an internal combustion engine and a lubricating oil circulation system provides estimates of the distance remaining before an oil change becomes imperative. An indirect...
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6920412 |
Real time life models for automatic transmission fluids
The remaining useful life of a transmission fluid in a vehicle is continually estimated by a transmission control computer module during vehicle operation using both an oxidation model and a shift...
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6911830 |
Diesel engine lubricating oil contaminant sensor method
A method by which contaminant (soot) content in Diesel engine oil is determined using electrical conductivity measurements of the Diesel oil at a high frequency, or by which contaminant (soot...
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6895807 |
Apparatus and method for determining oil change based upon oil viscosity
An oil change sensing system for an internal combustion engine, having an oil pressure sensor adapted to provide an oil pressure signal to an engine control module; an oil temperature sensor...
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6886392 |
Single ball bearing lubricant and material evaluator
A test apparatus provides an applied load to a monoball through a trolley which moves along a loading axis. While applying the load to the monoball, the torque meter is in communication with the...
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6860142 |
Method and apparatus for measuring a variable in a lubricant/coolant system
An automatic system for monitoring/controlling a variable of a machine or metalworking fluid system also achieves cleaning and optionally, a calibration check of the sensor of the variable. The...
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6857306 |
Four-ball wear and friction test apparatus
A four-ball test apparatus for evaluation of friction and wear characteristics of lubricants is disclosed. The test apparatus includes a motor and adjustable weight assembly that is supported by...
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6839620 |
Detecting soot during real time operation in diesel engine lubricant
A probe having a pair of closely spaced electrodes is immersed in the lubricant and one electrode is excited with a relatively low voltage AC current. The frequency is swept over a range of about...
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6817223 |
Compact tribology tester
An apparatus for testing properties of materials under operating conditions of the materials. The apparatus includes a hermetically sealed vessel in which a tribology tester is mounted. The...
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6810717 |
Method for determining engine lubricating oil condition
Activation energy, W, is determined from oil conductivity measurements to thereby provide engine oil condition from a known relationship between viscosity and W. Changes of W at a given temperature...
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