| Patents for G01F 9 - Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine (1,467) |
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| 12/18/1979 | US4178798 Method and apparatus for measuring fuel consumption in internal combustion engines |
| 11/20/1979 | US4174626 Fuel gauge |
| 11/13/1979 | US4173887 Apparatus including a meter for indicating the fuel consumption rate of an internal combustion engine |
| 10/23/1979 | US4171638 System for measuring pulsating fluid flow |
| 10/16/1979 | CA1064284A2 Fuel measuring system for engines |
| 07/25/1979 | EP0003170A1 Apparatus for measuring fuel consumption of a liquid-fuel burning engine |
| 07/17/1979 | CA1058721A1 Motor vehicle fuel economy indicating circuit |
| 07/10/1979 | US4160376 Method and device for estimating fuel consumption |
| 06/05/1979 | US4157031 Apparatus for indicating the fuel consumption rate of an internal combustion engine |
| 06/05/1979 | US4157030 System for deriving fuel consumption of a vehicle |
| 04/17/1979 | US4150431 Fuel consumption rate indicating system for a vehicle |
| 03/27/1979 | CA1051217A1 Fuel economy indicator |
| 02/27/1979 | US4141243 Apparatus for testing the volumetric output of fuel injector system components |
| 02/27/1979 | US4141240 Flow rate measuring device |
| 02/20/1979 | US4140009 Fuel consumption measuring device |
| 01/23/1979 | US4136389 Fuel consumption rate indicating system for a vehicle |
| 01/16/1979 | US4134301 Compensating fuel measuring system for engines |
| 12/12/1978 | US4129034 Method and apparatus for checking engine performance |
| 12/12/1978 | CA1044049A2 Method and apparatus for reproducing operating conditions in induced flow devices |
| 12/12/1978 | CA1044042A1 Method and apparatus for reproducing operating conditions in induced flow devices |
| 09/05/1978 | US4112492 Fuel economy measuring circuit employing rate multiplier components |
| 09/05/1978 | CA1037737A1 Method of and apparatus for measuring the distance per amount of fuel consumed by a vehicle |
| 08/22/1978 | US4107984 System for maintaining level of oil in engine |
| 08/01/1978 | US4103543 Method and apparatus for determining vehicle fuel consumption |
| 07/04/1978 | US4098113 Temperature controlled fuel systems for engines |
| 06/06/1978 | US4092851 Apparatus for the measurement of vehicle fuel consumption |
| 06/06/1978 | US4092850 Fuel measuring and recording systems for combustion devices and method for monitoring fuel flow |
| 05/09/1978 | US4088012 Fuel injection metering system |
| 04/25/1978 | US4085610 Compensated fuel measuring system for engines |
| 03/21/1978 | US4079623 Fuel measuring system for engines |
| 02/14/1978 | US4073186 Flow meter and metering systems |
| 01/31/1978 | US4070910 Fluid flow measuring apparatus |
| 01/10/1978 | US4067232 Indication of rates of fuel consumption |
| 12/13/1977 | US4062230 Fuel mileage indicator |
| 12/06/1977 | US4061024 Fuel measuring system for engines and method of monitoring fuel flow |
| 12/06/1977 | US4061023 Fuel-meter-combined fuel consumption rate meter |
| 10/18/1977 | US4054781 Method and apparatus for instantaneously measuring and indicating fuel consumption rate |
| 09/27/1977 | US4050295 Digital measuring system for engine fuel performance |
| 09/13/1977 | US4048497 Method of measuring the oil consumption of internal combustion engines |
| 09/06/1977 | US4046998 Possible vehicle running distance indication |
| 08/23/1977 | US4043198 Positive displacement fluid flowmeter |
| 05/31/1977 | US4026146 Fuel consumption measuring device |
| 05/17/1977 | US4024520 Electrical latching circuit |
| 05/03/1977 | US4020683 Fluid measuring valve and system to measure miles per gallon of a vehicle |
| 03/22/1977 | US4013194 Device for metering by weight the delivery of liquids |
| 03/22/1977 | US4012949 Miles per gallon computer system means |
| 03/22/1977 | US4012948 Fuel consumption measuring device |
| 02/22/1977 | US4008607 Fuel consumption rate detecting apparatus |
| 02/15/1977 | US4007634 Fuel rate monitor apparatus for vehicles |
| 01/11/1977 | US4002062 Average fuel consumption rate measuring system |
| 12/21/1976 | US3998094 Method of and apparatus for measuring the distance per amount of fuel consumed by a vehicle |
| 10/26/1976 | US3987671 Meter for measuring machine output in relation to fuel consumption |
| 10/05/1976 | US3983747 Fuel economy transducer for motor vehicle |
| 09/28/1976 | US3983533 Motor vehicle fuel economy indicating circuit |
| 09/28/1976 | US3983372 Apparatus and method for a digital readout of distance traveled, fuel consumed and miles per gallon of a moving motor vehicle |
| 08/24/1976 | US3975953 Method and apparatus for reproducing operating conditions in induced flow devices |
| 08/24/1976 | US3975952 Engine power output measuring instrument |
| 08/10/1976 | US3973536 Device for feeding fuel to a diesel engine |
| 08/03/1976 | US3972224 Shaft efficiency monitoring system |
| 06/29/1976 | US3967097 Vehicle fuel economy calculator and indicator |
| 06/08/1976 | US3961598 Gas saving tactile device |
| 06/01/1976 | US3960012 Shaft horsepower and efficiency monitoring system |
| 05/25/1976 | US3958453 Gasoline mileage indicator system |
| 04/13/1976 | US3949602 Fuel use rate meter for engines |
| 02/10/1976 | US3938074 Fuel economy indicator |
| 02/03/1976 | US3935732 Process and apparatus for the measurement of volume, flow rate and consumption, at a predeterminable pressure, of combustible liquid by an apparatus in place and functioning |
| 01/06/1976 | US3930408 Maximum mileage indicator for vehicle |