Abstract: A cylinder block assembly has: a cylinder block having three cylinders aligned side-by-side; and four crank caps arranged side-by-side in an alignment direction of the cylinders and fastened to the cylinder block. The crank caps and the cylinder block are provided with crank bearings which rotatably support a crankshaft. The crank caps are arranged at both sides of each cylinder in the alignment direction. Intermediate crank caps positioned at intermediate positions in the plurality of the crank caps include removed parts so as to more easily deform when receiving a load from the crankshaft compared with the side crank caps.

Abstract: A water absorbing and releasing body that absorbs water in engine oil and releases water when the temperature of the engine oil is high in order to maintain the performance of the engine oil, automotive parts including the water absorbing and releasing body, and a method for producing the water absorbing and releasing body for engine oil.

Abstract: A cylinder block assembly includes a cylinder block having cylinders and a plurality of crank caps fixed to the cylinder block. The crank caps are arranged such that one of the crank caps is disposed on each of both sides of each of the cylinders in the alignment direction and among the plurality of crank caps arranged in line, each of a center crank cap located at a center position and two side crank caps respectively located at both ends has a hole or a groove in such a manner as to be more easily deformable than intermediate crank caps each of which is located between the center crank cap and one of the side crank caps when a load is received from the crankshaft.

Abstract: A cylinder block assembly has: a cylinder block having three cylinders aligned side-by-side; and four crank caps arranged side-by-side in an alignment direction of the cylinders and fastened to the cylinder block. The crank caps and the cylinder block are provided with crank bearings which rotatably support a crankshaft. The crank caps are arranged at both sides of each cylinder in the alignment direction. Intermediate crank caps positioned at intermediate positions in the plurality of the crank caps include removed parts so as to more easily deform when receiving a load from the crankshaft compared with the side crank caps.

Abstract: An automotive part includes a substrate and a cured layer bonded to the substrate, and the cured layer comprises a cured product of a curable composition containing: (A) an epoxy compound containing (A1) a first epoxy compound having at least two alicyclic epoxy groups and (A2) a second epoxy compound represented by the following formula (3): wherein s denotes an integer of not less than 2, R2 represents a s-valent straight-chain or branched-chain saturated aliphatic hydrocarbon group, or a s-valent group in which two or more straight-chain or branched-chain saturated aliphatic hydrocarbon groups are coupled through ether bond(s); and (C) a leveling agent.

Abstract: A cylinder block assembly includes a cylinder block having cylinders and a plurality of crank caps fixed to the cylinder block. The crank caps are arranged such that one of the crank caps is disposed on each of both sides of each of the cylinders in the alignment direction and among the plurality of crank caps arranged in line, each of a center crank cap located at a center position and two side crank caps respectively located at both ends has a hole or a groove in such a manner as to be more easily deformable than intermediate crank caps each of which is located between the center crank cap and one of the side crank caps when a load is received from the crankshaft.

Abstract: A sliding member includes: a metal substrate; an undercoat primer layer that is formed on a sliding surface of the metal substrate; and a resin layer that is formed on the undercoat primer layer, in which the resin layer is formed by curing a composition layer containing a bifunctional alicyclic epoxy and a polymerization initiator.

Abstract: An oil deterioration suppressing apparatus is provided. The apparatus may include a filtering portion including a filter element for filtering oil, and a deterioration suppressing portion including a powdery deterioration retarder which suppresses deterioration of oil. The deterioration suppressing portion may include a flow passage wall which holds the powdery deterioration retarder and defines an oil flow passage, and the powdery deterioration retarder includes mesoporous inorganic material.

Abstract: An oil deterioration prevention device is provided that can prevent an increase in pressure loss by reducing oilflow resistance. The oil deterioration prevention device may include a filtering unit with a filter element that filters oil, and a deterioration prevention unit having a powdery deterioration prevention agent that prevents deterioration of oil, wherein out of oil fed from an oil containing unit, oil filtered by the filtering unit is fed to a part to be lubricated, and oil that is prevented from being deteriorated by the deterioration prevention unit is returned to the oil containing unit or sent to the part to be lubricated.

Abstract: An oil degradation suppressor according to one aspect of the present invention contains a reactant having an ability to adsorb a given component in an oil such as an acidic anion, and a gel-like material to hold the reactant. The reactant is preferably a hydrotalcite-like compound. The gel-like material contains a highly heat resistive gel and an amphiphilic solvent. A gel-like member containing the reactant and the gel-like material is disposed in a casing, and thereby an oil filter is provided. The gel-like material can work for supporting the reactant suitably.

Abstract: An oil additive includes a hydrotalcite-like compound, and a radical trapping agent having a melting point of 130° C. or higher.

Abstract: A water absorbing and releasing body that absorbs water in engine oil and releases water when the temperature of the engine oil is high in order to maintain the performance of the engine oil, automotive parts including the water absorbing and releasing body, and a method for producing the water absorbing and releasing body for engine oil.

Abstract: An oil deterioration suppressing apparatus for an internal combustion engine comprises a first oil filter and a second oil filter, wherein the first oil filter comprises a first filter member for filtering oil from an oil pan in which oil is stored, and the second oil filter comprises a second filter member for filtering oil from the oil pan, and wherein the second filter member is made of a ceramic material and has a mean pore size smaller than the mean pore size of the first filter member.

Abstract: An oil deterioration prevention device is provided that can prevent an increase in pressure loss by reducing oilflow resistance. The oil deterioration prevention device may include a filtering unit including a filter element that filters oil, and a deterioration prevention unit including a powdery deterioration prevention agent that prevents deterioration of oil, wherein the deterioration prevention unit includes a passage wall that retains the deterioration prevention agent and forms an oil passage.

Abstract: A lubricating oil composition for internal combustion engines of passenger and commercial four-wheeled vehicles is provided which can exhibit excellent fuel efficiency performance and wear resistance reliability. The lubricating oil composition includes a base oil and a complex polyester mixture. The base oil includes at least one of poly-?-olefin, an ester-based base oil, or a partially hydrogenated mineral oil. The complex polyester mixture includes a polyester obtained by condensing a polyhydric alcohol, a polycarboxylic acid, and a monohydric alcohol having an oxyalkylene group. The content of the complex polyester mixture is 0.01% by mass or more with respect to the total mass of the lubricating oil composition, the high-temperature shear viscosity (HTHS viscosity) at 150° C. is 1.0 mPa·s to 2.6 mPa·s, and the NOACK evaporation amount is 40% or less.

Abstract: An automotive part comprises a substrate and a heat-resistant layer. The heat-resistant layer contains a first layer on a surface of the substrate and a second layer on the first layer. The first layer contains a polyamideimide resin. The second layer contains a cured product of (A) a curable liquid composition containing an alicyclic epoxy compound represented by the formula (1): wherein R1 to R18 are the same or different and each represent a hydrogen atom, a halogen atom, an oxo group, a hydroxyl group, a hydroperoxy group, an amino group, a sulfo group, or an organic group, and X represents a direct bond or a linkage group.

Abstract: A lubricating oil composition for internal combustion engines of passenger and commercial four-wheeled vehicles is provided which can exhibit excellent fuel efficiency performance and wear resistance reliability. The lubricating oil composition includes a base oil and a complex polyester mixture. The base oil includes at least one of poly-?-olefin, an ester-based base oil, or a partially hydrogenated mineral oil. The complex polyester mixture includes a polyester obtained by condensing a polyhydric alcohol, a polycarboxylic acid, and a monohydric alcohol having an oxyalkylene group. The content of the complex polyester mixture is 0.01% by mass or more with respect to the total mass of the lubricating oil composition, the high-temperature shear viscosity (HTHS viscosity) at 150° C. is 1.0 mPa·s to 2.6 mPa·s, and the NOACK evaporation amount is 40% or less.

Abstract: A sliding member includes: a metal substrate; an undercoat primer layer that is formed on a sliding surface of the metal substrate; and a resin layer that is formed on the undercoat primer layer, in which the resin layer is formed by curing a composition layer containing a bifunctional alicyclic epoxy and a polymerization initiator.

Abstract: A sliding member includes: a metal substrate; an undercoat primer layer that is formed on a sliding surface of the metal substrate; and a resin layer that is formed on the undercoat primer layer. The resin layer is formed by curing a composition layer containing a bifunctional bisphenol A type epoxy resin, a leveling agent, and a polymerization initiator.

Abstract: An oil degradation suppressor according to one aspect of the present invention contains a reactant having an ability to adsorb a given component in an oil such as an acidic anion, and a gel-like material to hold the reactant. The reactant is preferably a hydrotalcite-like compound. The gel-like material contains a highly heat resistive gel and an amphiphilic solvent. A gel-like member containing the reactant and the gel-like material is disposed in a casing, and thereby an oil filter is provided. The gel-like material can work for supporting the reactant suitably.