ClassID:

166911

G01L23/22 - CPC Classification

Classification description:

Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines

Sub-classes:
Recent Application in this class:
#1
20200393319
2020-12-17

Pressure sensor assemblies and methods of detecting pressure within an engine

#2
20200263651
2020-08-20

Internal combustion engines having super knock mitigation controls and methods for their operation

#3
20200208578
2020-07-02

Method for monitoring a cylinder pressure sensor

#4
20200200636
2020-06-25

Diaphragm suppressing pressure sensor

#5
20200173871
2020-06-04

Sensing device of pressure and temperature in mold

#6
20200158588
2020-05-21

Pressure detection signal processing device, engine control system, and non-transitory computer readable medium storing a program

#7
20200131988
2020-04-30

Method and system for applying engine knock windows

#8
20200025791
2020-01-23

Accelerometer sensor with a protective sleeve for electric cables

#9
20190376407
2019-12-12

Method and apparatus for determining a present value based on previously obtained values of a measured variable of a gas turbine engine and/or a thermodynamic process

#10
20190271468
2019-09-05

Attachment structure of glow plug with combustion pressure sensor and glow plug with combustion pressure sensor

#11
20190195716
2019-06-27

PRESSURE SENSOR

#12
20190078958
2019-03-14

Detecting device and detecting system

#13
20190056282
2019-02-21

Pressure detection device and pressure detection system having first and second housings electrically insulated from each other

#14
20180321105
2018-11-08

Dual fuel combustion intensity

#15
20180058968
2018-03-01

COMBUSTION PRESSURE SENSOR

#16
20170067793
2017-03-09

Glow-plug adaptor for pressure measurements

#17
20160341171
2016-11-24

Method for controlling engine knocking

#18
20160305840
2016-10-20

Combustion pressure sensor with built-in charge amplifier

#19
20160282860
2016-09-29

Remote sensor data for vehicles

#20
20160281617
2016-09-29

System and method for locating an engine event

#21
20160265454
2016-09-15

Systems and methods to distinguish engine knock from piston slap

#22
20160258378
2016-09-08

Methods and systems to derive health of mating cylinder using knock sensors

#23
20160138551
2016-05-19

Method to detect and control detonation phenomena in an internal combustion engine

#24
20160123249
2016-05-05

Knock determination apparatus for internal combustion engine

#25
20160061683
2016-03-03

Pressure sensor including variable member having rear end connected to housing at a predetermined axial position

#26
20160033365
2016-02-04

Support for an electronic module of a pressure measurement sensor

#27
20150369485
2015-12-24

Pressure-sensor-integrated glow plug and manufacturing method thereof

#28
20150135798
2015-05-21

Method for ascertaining an offset of an output signal of an evaluation circuit integrated in a sensor, preferably of a pressure sensor installed in a combustion chamber of an internal combustion engine, and sensor

#29
20150059456
2015-03-05

Spark plug for a gas-powered internal combustion engine

#30
20150040866
2015-02-12

Engine system for vessel propulsion device and vessel including the same

#31
20150034039
2015-02-05

Internal combustion engine fitted with combustion pressure detection device

#32
20150013633
2015-01-15

Pressure measuring glow plug

#33
20140278010
2014-09-18

Noise updating systems and methods

#34
20140069178
2014-03-13

System and method for controlling a firing sequence of an engine to reduce vibration when cylinders of the engine are deactivated

#35
20130333456
2013-12-19

Combustion pressure sensor

#36
20130311064
2013-11-21

Control apparatus for internal combustion engine

#37
20130269641
2013-10-17

Glow plug with combustion pressure sensor

#38
20130269640
2013-10-17

Glow plug with combustion pressure sensor

#39
20130263808
2013-10-10

Glow plug with a sleeve to receive the heating rod, equipped with a distal turned-up part

#40
20130217275
2013-08-22

Glow plug connector

#41
20130139578
2013-06-06

Pressure-measuring device and pressure-measuring method for a turbomachine

#42
20130047716
2013-02-28

Dual diaphragm combustion pressure measuring device

#43
20120048234
2012-03-01

System and method for knock detection based on ethanol concentration in fuel

#44
20110271748
2011-11-10

Combustion pressure sensor

#45
20110210744
2011-09-01

Automatic variable gain amplifier

#46
20110146392
2011-06-23

Pressure measuring glow plug

#47
20110137599
2011-06-09

Compensation arrangement and method for operation thereof

#48
20100217541
2010-08-26

Integrated apparatus for measuring static pressure

#49
20100212621
2010-08-26

Glow plug with integrated pressure sensor

#50
20100079155
2010-04-01

Pressure detection apparatus

#51
20100077844
2010-04-01

Pressure sensor

#52
20090126472
2009-05-21

COMBUSTION PRESSURE SENSOR FOR INTERNAL COMBUSTION ENGINE

#53
20090118981
2009-05-07

Fuel injector with fuel pressure sensor

#54
20090038386
2009-02-12

Sensor structure in particular for a harsh environment in a motor vehicle

#55
20090025468
2009-01-29

Piezoelectric Combustion Chamber Pressure Sensor Having a Pressure Transmission Pin

#56
20080302323
2008-12-11

Pencil-type glow plug having an integrated combustion chamber pressure sensor

#57
20080264373
2008-10-30

Sheathed Element Glow Plug Having a Combustion Chamber Pressure Sensor

#58
20080236263
2008-10-02

Method and device for analyzing a sensor element

#59
20080218052
2008-09-11

Spark plug

#60
20080216786
2008-09-11

Glow plug with integrated pressure sensor

#61
20080211373
2008-09-04

Spark plug with optical sensor

#62
20080191859
2008-08-14

Compensation arrangement and method for operation thereof

#63
20080067165
2008-03-20

Carbon-Deposit Protection System For A Sheathed-Element Glow Plug Having A Gas Conduit For Pressure Measurement

#64
20080033629
2008-02-07

Dynamic noise-reduction baselining for real-time spectral analysis of internal combustion engine knock

#65
20070277617
2007-12-06

Pressure sensor

#66
20070240661
2007-10-18

Device for Detecting the Combustion-Chamber Pressure in an Internal Combustion Engine

#67
20070039592
2007-02-22

Arrangement with an injection valve and a sleeve as pressure transfer means

#68
20060284535
2006-12-21

Spark plug having combustion pressure detecting function

#69
20060218997
2006-10-05

Combustion pressure sensor and glow plug including the same

#70
20060170909
2006-08-03

Fuel injectors with integral fiber optic pressure sensors and associated compensation and status monitoring devices

#71
20060090544
2006-05-04

Combustion chamber pressure sensor equipped with damper body for attenuating transmitted engine vibration

#72
20060086180
2006-04-27

Method and device for analyzing a sensor element

#73
20060032472
2006-02-16

Glow plug with combustion pressure detecting function

#74
20060027013
2006-02-09

Combustion pressure detecting apparatus

#75
20050252297
2005-11-17

Pressure gauge glow plug

#76
20050229685
2005-10-20

In-cylinder pressure detection device

#77
20050173395
2005-08-11

Glow plug connector and system with a coupling, glow plug connector and glow plug

#78
20050166682
2005-08-04

Pressure sensor having diaphragm

#79
20050150301
2005-07-14

Method of connection to a spark plug pressure sensor

#80
20050056087
2005-03-17

Spark generating apparatus having strain gage cylinder pressure measurement feature

#81
20050051136
2005-03-10

Wavelet-based artificial neural net combustion sensing

#82
20050006854
2005-01-13

Cylinder head gasket