摘要:
An oil passage structure in an engine includes a first oil passage and a second oil passage. The second oil passage has a hydraulic pressure which is different from that in the first oil passage. The first and second oil passages are provided in engine body in an arrangement where they intersect each other when viewed in projection onto a plane parallel to an axis of the first oil passage. In order to enable the space for disposition of both the oil passages to be reduced to a necessary minimum to provide a reduction in size of the engine body, a cylindrical partition member having annular seal members mounted on its outer surface at opposite ends is fitted into the first oil passage. Thus, an annular intermediate chamber is defined between the outer surface of the partition member and an inner surface of the first oil passage and is sealed at its opposite ends by the seal members. The second oil passage is provided in the engine body in an arrangement where upstream and downstream passage portion thereof communicate with each other through the intermediate chamber.
摘要:
Disclosed in a novel organosilane compound represented by the general formula(R.sup.1 O).sub.m Me.sub.3-m Si--R.sup.2 --NH--R.sup.3 --NH.sub.2,in which Me is a methyl group, R.sup.1 is a methyl or ethyl group, R.sup.2 is a divalent hydrocarbon group having 1 to 10 carbon atoms, R.sup.3 is a divalent hydrocarbon group having 7 to 10 carbon atoms of which six carbon atoms jointly form a benzene ring, at least one of the nitrogen atoms in the amino and imino groups being not directly bonded to the carbon atom which is a member of the benzene ring, and the subscript m is 1,2 or 3.
摘要:
A dental cleaner material comprises as a main component an aqueous solution containing 0.1 to 2.0% by weight of ethylenediaminetetraacetic acid or at least one of its alkali metal salts. The cleaner material is gelled by the addition of a carboxyvinyl polymer, carboxymethylcellulose or sodium carboxymethylcellulose as a raiser in viscosity showing thixotropy, further contains 0.01 to 0.3% by weight fo a p-hydroxybenzoic acid ester as an antibacterial agent, and is regulated to pH of 7.0.+-.0.5.
摘要:
A flat panel display device includes a face plate made of a transparent material, a back plate positioned parallel to the face plate, and a wall member extending between the face plate and back plate to define an airtight housing. An anode is provided on a inner surface of the face plate, a fluorescent layer is provided in association with the anode, and a cathode is provided in association with an inner surface of the back plate. A plurality of struts, made of an electrically conductive screen printed powdery material, are tightly held between the back plate and the face plate, such that an electric charge accumulated between the anode and cathode is discharged by a leakage current flowing through the struts.
摘要:
The primer composition of the invention is particularly useful as an undercoating composition for a protective overcoating formed with a silicone-based coating composition containing a colloidal silica powder in respect of the excellent adhesion, heat resistance, resistance against hot water and weatherability of the overcoating layer. The primer composition essentially comprises two components including (a) 100 parts by weight of a copolymer of a monomer mixture composed of (a-1) from 2 to 50% by weight of an ethylenically unsaturated monomeric compound having, in a molecule, an alkoxysilyl group and (a-2) from 98 to 50% by weight of an ethylenically unsaturated monomeric compound free from alkoxysilyl groups and copolymerizable with the monomeric compound (a-1); and (b) from 5 to 300 parts by weight of an amidated product obtained by the reaction of a halide, anhydride or isopropenyl ester of a carboxylic acid and a product obtained by the reaction of an amino group-containing alkoxysilane compound, an epoxy group-containing alkoxysilane compound and a silylating agent.
摘要:
A coating material for protecting the surfaces of teeth is obtained by dissolving a resinous composition comprising 100 weight parts of a polystreyene resin or a high-impact polystyrene resin and 1 to 60 weight parts of rosin or a rosin derivative added thereto in an organic solvent. The resinous composition may further contain 1 to 100 weight parts of a chlorinated polymer and 1 to 100 weight parts of a coloring matter.
摘要:
A quick feeding system for feeding quick counting pulses to a counter, such as an hours counter of an electronic clock of the digital display type, comprising frequency dividing circuits, a switch for effecting a quick feed of pulses to the counter and a quick feed pulse generation circuit connected between one of the frequency dividing circuits and the counter.
摘要:
An internal combustion engine with variable valve opening characteristics includes an outer camshaft, an inner camshaft, an urging device, a cam phase changing device, and a locking device. The outer camshaft includes a first cam. The inner camshaft includes a second cam. The cam phase changing device includes a first rotating member, a second rotating member, an advance-angle-side oil hydraulic chamber, and a retard-angle-side oil hydraulic chamber. A cam phase of the one of the outer camshaft and the inner camshaft is changed by switching between oil hydraulic circuits that communicate with the advance-angle-side oil hydraulic chamber and the retard-angle-side oil hydraulic chamber. The locking device is provided to connect another of the outer camshaft and the inner camshaft to the first rotating member with a predetermined cam phase.
摘要:
A signal processing circuit includes an I/V conversion circuit (current/voltage conversion section) that converts an oscillation current of a vibrator into a voltage, an RC filter (phase shift section) that shifts a phase of the output signal of the I/V conversion circuit, a full-wave rectifier (part of a drive amplitude control section) that binarizes a signal that has been shifted in phase to generate a switch control signal, a comparator (reference signal generation section) that generates a reference signal for synchronous detection based on the output signal of the I/V conversion circuit, and an EXOR circuit (clock signal generation section) that generates a clock signal for a switched capacitor filter (SCF) that has a frequency twice a frequency of a drive signal based on a phase difference between the reference signal and the switch control signal.