CONCENTRATION MEASURING DEVICE

A concentration measuring device (100) is provided with: a measuring cell (4) including a flow passage (4c) for a fluid to be measured, and a translucent window portion (3) adjoining the flow passage; a light source (1) for emitting light which enters the measuring cell via the window portion; a reflective member (5) which reflects light that has propagated through the measuring cell and causes the reflected light to exit the measuring cell via the window portion; a light detector (7) which detects the light that has exited the window portion of the measuring cell; a computing unit (8) which computes the concentration of the fluid to be measured on the basis of a detection signal from the light detector; and an optical instrument (10) which guides the light emitted from the light source to the window portion of the measuring cell, and guides the light that has exited the window portion of the measuring cell to the light detector.

Porous film sealing method and porous film sealing material

A porous film sealing method and porous film sealing material are provided to seal an object to be sealed that has a porous film. The porous film sealing method of the present invention is characterized by including a first step that supplies a first material to a treatment vessel in which is stored an object to be treated that has a porous film, and the first material includes a non-aromatic fluorocarbon having 6 or more carbon atoms.

Low viscosity lubricating oil compositions

Provided is a lubricating oil composition having a HTHS viscosity at 150° C. in a range of about 1.7 to about 3.2 mPa s and a low temperature cold cranking viscosity of less than 7,000 mPa s at −20° C., comprising: (a) a major amount of an oil of lubricating viscosity having a kinematic viscosity at 100° C. of from 3.5 mm 2 /s to 20 mm 2 /s and a viscosity index of greater than 120 with a sulfur content of less than 0.03 wt. %, are classified into the API group III, IV, or V base stock category, and have an aromatics content (C A ) of less than 5%; (b) an organomolybdenum compound; (c) a dispersed hydrated alkali metal borate compound; (e) one or more dispersants; (f) one or more calcium-based metal detergents; and (g) optionally, one or more magnesium-based metal detergents. Also provided is a method for improving wear, high temperature detergency, and thermal stability in an engine comprising operating said engine with said lubricating oil composition.

CONCENTRATION MEASURING DEVICE

A concentration measuring device includes a measuring cell having a flow passage and a translucent window, a light source for emitting light to the measuring cell through the window, a reflective member for reflecting light propagating through the measuring cell to the window, a light detector for detecting the light exiting from the window, a calculation part for calculating the concentration of the fluid on the basis of a detection signal from the light detector, and an optical device for guiding the light from the light source to the window and guiding the light from the window to the light detector. 1. A concentration measuring device comprising:a measuring cell that includes a flow passage of a fluid to be measured and a translucent window adjoining the flow passage;a light source that emits light to enter the measuring cell through the window;a reflective member that reflects the light propagating through the measuring cell, and causes reflected light to exit from the measuring cell through the window;a light detector that detects light exiting from the window of the measuring cell;a calculation part that calculates a concentration of the fluid to be measured on a basis of a detection signal of the light detector; andan optical device that guides the light emitted from the light source to the window of the measuring cell, and guides the light exiting from the window of the measuring cell to the light detector.2. The concentration measuring device according to claim 1 , whereinthe reflective member is disposed opposing the window across the flow passage.3. The concentration measuring device according to claim 1 , whereinthe optical device includes a light guide member and a beam splitter that is connected to the light guide member, andthe beam splitter receives the light from the light source and causes the received light to enter the measuring cell via the light guide member, and receives the light exiting from the measuring cell and guided by the light guide ...

Low viscosity lubricating oil composition

The present invention generally relates to lubricating oil compositions useful for reducing NOACK volatility in finished lubricating oils of an internal combustion engine. Also disclosed is a method for reducing NOACK volatility in finished lubricating oils in said engine.

Friction modifier system

This disclosure describes a lubricant additive. The additive is a friction modifier that includes a molybdenum containing compound and a tertiary amine-containing composition having the structure (I), wherein each R1 and R5 is independently a linear or branched-chain monovalent hydrocarbyl group having one to about twenty carbon atoms, wherein each R2, R3, and R4 is independently a hydrogen, a linear or branched-chain monovalent hydrocarbyl group having one to about twenty carbon atoms, each m is independently from 0 and 4, each p is independently from 0 and 4, for each cyclic moiety m + p is from 2 and 4, and each n is independently from 1 and 6.

Lubricating oil composition for hybrid vehicles

The lubricating oil composition includes an oil of lubricating viscosity, one or more compounds containing a carboxylic acid functional group or ester functional group the compound represented by Formula (I), each R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 is independently hydrogen or hydrocarbyl group; at least one of R 1 , R 2 , R 3 , and R 4 is a hydrocarbyl group; and a poly alkylene glycol represented by Formula (II), each R 7 , R 8 , and R 9 is independently hydrogen or hydrocarbyl group and n is from 5 to 1000.

Lubricating oil composition for hybrid vehicles

The lubricating oil composition includes an oil of lubricating viscosity, one or more compounds containing a carboxylic acid functional group or ester functional group the compound represented by Formula (I), each R1, R2, R3, R4, R5, and R6 is independently hydrogen or hydrocarbyl group; at least one of R1, R2, R3, and R4 is a hydrocarbyl group; and a poly alkylene glycol represented by Formula (II), each R7, R8, and R9 is independently hydrogen or hydrocarbyl group and n is from 5 to 1000.

Low viscosity lubricating oil compositions

Provided is a lubricating oil composition having a HTHS viscosity at 150°C in a range of about 1.7 to about 3.2 mPa s and a low temperature cold cranking viscosity of less than 7,000 mPa s at -20 °C, comprising: (a) a major amount of an oil of lubricating viscosity having a kinematic viscosity at 100°C of from 3.5 mm2/s to 20 mm2/s and a viscosity index of greater than 120 with a sulfur content of less than 0.03 wt.%, are classified into the API group III, IV, or V base stock category, and have an aromatics content (CA) of less than 5%; (b) an organomolybdenum compound; (c) a dispersed hydrated alkali metal borate compound; (e) one or more dispersants; (f) one or more calcium-based metal detergents; and (g) optionally, one or more magnesium-based metal detergents. Also provided is a method for improving wear, high temperature detergency, and thermal stability in an engine comprising operating said engine with said lubricating oil composition.

面取り装置

【課題】 作業性がよい面取り装置を提供する。【解決手段】 台座１上に、金属製のローラシャフト収容角柱２が２本の支柱２ａによって支持され、ローラシャフト収容角柱２の直角位置に平行に配置されたローラシャフト抑え機構３、４が各２本の支柱３ａ、４ａによって支持されている。ローラシャフト収容角柱２は４５°傾斜した矩形断面形状をなし、その直角２上面に複数のローラシャフト収容孔２ｂ、２ｃが等間隔に設けられている。各ローラシャフト抑え機構３、４はローラシャフト用の各１対の溝付板３−１、３−２；４−１、４−２によって構成され、ローラシャフト収容孔３ｂ、４ｂを形成する。ローラシャフト収容角柱２とローラシャフト抑え機構３（４）との間には複数のローラシャフト５（６）が平行に配置される。ローラシャフト５（６）には予め複数のローラ７（８）が嵌合されている。【選択図】 図２

Friction modifier system

This disclosure describes a lubricant additive. The additive is a friction modifier that includes a molybdenum containing compound and a tertiary amine-containing composition having the following structure:wherein each R1 and R5 is independently a linear or branched-chain monovalent hydrocarbyl group having one to about twenty carbon atoms, wherein each R2, R3, and R4 is independently a hydrogen, a linear or branched-chain monovalent hydrocarbyl group having one to about twenty carbon atoms, each m is independently from 0 and 4, each p is independently from 0 and 4, for each cyclic moiety m+p is from 2 and 4, and each n is independently from 1 and 6.

Friction modifier system

Aftertreatment system friendly engine oil formulation

This disclosure describes a method of reducing catalyst poisoning in a diesel engine equipped with an aftertreatment system comprising a selective catalytic reduction device. The method includes lubricating the engine with a lubricating oil composition. The lubricating oil composition includes a major amount of oil of lubricating viscosity; and Ca or Mg salicylate detergent wherein the lubricating oil composition is devoid of Ca sulfonate detergent.

平行グリッパ式把持装置

【課題】種々の把持対象物の把持が可能な平行グリッパ式把持装置を提供する。【解決手段】主台座１上に左台座２−１及び右台座２−２が左右移動可能に設けられている。左台座２−１にはリニアガイドレール５−１、５−１’及びピニオン６−１が設けられる。右台座２−２にはリニアガイドレール５−２、５−２’及びピニオン６−２が設けられる。左グリッパ７−１の把持面Ｓ１と右グリッパ７−２の把持面Ｓ２とは互いに対向している。左グリッパ７−１は大指部７−１−１及び小指部７−１−２よりなる。大指部７−１−１はリニアガイドブロック（溝）８−１−０、８−１−０’及び大指ラック８−１−１を有し、小指部７−１−２は小指ラック８−１−２、リニアガイドレール８−１−３及び引張ばね８−１−４を有する。リニアガイドブロック（溝）８−１−５が大指部７−１−１側に設けられる。右グリッパ７−２も左グリッパと同様である。【選択図】 図２

Lubricating oil composition for hybrid vehicles

The lubricating oil composition includes an oil of lubricating viscosity, one or more compounds containing a carboxylic acid functional group or ester functional group the compound represented by Formula (I), each R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 is independently hydrogen or hydrocarbyl group; at least one of R 1 , R 2 , R 3 , and R 4 is a hydrocarbyl group; and a poly alkylene glycol represented by Formula (II), each R 7 , R 8 , and R 9 is independently hydrogen or hydrocarbyl group and n is from 5 to 1000.

Aftertreatment system friendly engine oil formulation

This disclosure describes a method of reducing catalyst poisoning in a diesel engine equipped with an aftertreatment system comprising a selective catalytic reduction device. The method includes lubricating the engine with a lubricating oil composition. The lubricating oil composition includes a major amount of oil of lubricating viscosity and a phosphorus-containing additive.

Aftertreatment system friendly engine oil formulation

This disclosure describes a method of reducing catalyst poisoning in a diesel engine equipped with an aftertreatment system comprising a selective catalytic reduction device. The method includes lubricating the engine with a lubricating oil composition. The lubricating oil composition includes a major amount of oil of lubricating viscosity; and a detergent system comprising at least one magnesium-containing detergent or at least one magnesium-containing detergent and at least one calcium-containing detergent.