摘要:
A method for controlling an engine includes, when the engine is operating within a particular range with comparatively low engine speed and high load, setting an effective compression ratio of 10:1 or above, retarding ignition timing by a predetermined amount and retarding the ignition timing within a first, relatively low engine speed range more than within a second, higher engine speed range, setting an injection mode of an injection valve to divided injections performed at least twice in a period from an intake stroke to an earlier-half stage of a compression stroke, performing, within the first engine speed range, a final injection in the earlier-half stage of the compression stroke, and performing, within the second engine speed range, the final injection in a late stage of the intake stroke and at least one injection other than the final injection in a middle stage of the intake stroke.
摘要:
The present invention provides a turbo molecular pump capable of suppressing temperature rise in an electronic circuit section within a range, without losing airtight property thereof with a simple construction. In a base section of a turbo molecular pump, a bottom portion thereof is sealed by a bottom cover. A semiconductor device is disposed at the inner portion of the bottom cover. A cooling member is provided, which is used for releasing heat of the semiconductor device in an airtight state outside the bottom cover.
摘要:
An induction heating apparatus comprises a heating coil and a transistor which is connected to a direct current power source in series thereto to form an inverter for converting the direct current to an alternating current, and furthermore, a first coupling coil for supplying a forward base current to the transistor is coupled with the heating coil inductively and a second coupling coil for supplying a inverse base current for the transistor is also coupled to the heating coil inductively, and the inverter is controlled by a switching device which is controlled by a control circuit.
摘要:
To provide a magnetic bearing control device that identifies a movable range of an eddy current gap sensor configuring a magnetic bearing and a center of the movable range and easily controls a rotor shaft and other controlled shafts, which are lifted by the magnetic bearing, in a central position of a protective bearing. The magnetic bearing control device has a first function for detecting an X-axis direction movable limit position of the rotor shaft; a second function for identifying a center of an X-axis movable range of an X-axis eddy current gap sensor (−X sensor, +X sensor) based on the X-axis direction movable limit position detected by the first function; a third function for detecting a Y-axis direction movable limit position of the rotor shaft; a fourth function for identifying a center of a Y-axis movable range of a Y-axis eddy current gap sensor (+Y sensor, −Y sensor) based on the Y-axis direction movable limit position detected by the third function; and a fifth function for turning an excitation current of a Y-axis electromagnet (+Y electromagnet, −Y electromagnet) OFF when the first function detects the X-axis direction movable limit position and the second function identifies the center of the X-axis movable range, and turning an excitation current of an X-axis electromagnet (+X electromagnet, −X electromagnet) OFF when the third function detects the Y-axis direction movable limit position and the fourth function identifies the center of the Y-axis movable rage.
摘要:
A heat-resistant flame-retardant protective suit fabric of the present invention is formed of a uniform blended spun yarn including 25 to 75 mass % of polyetherimide fiber, 20 to 50 mass % of at least one fiber selected from wool and flame-retardant rayon, and 5 to 25 mass % of para-aramid fiber when the spun yarn is 100 mass %. The fabric experiences no heat shrinkage when exposed to a heat flux at 80 kW/m2 ±5% for 3 seconds in accordance with ISO 9151 Determination of Heat Transmission on Exposure to Flame. And the char length is not more than 10 cm in the longitudinal and horizontal directions in the flammability test specified in JIS L 1091A-4. Thereby, the present invention provides a protective suit fabric that provides comfort in wearing even if the suit is worn in the hot seasons or even if the wearer perspires during exertion. The fabric has high heat resistance and high flame retardance, favorable dye affinity, and the fabric can be produced at a low cost. The present invention provides also a spun yarn used for the fabric.
摘要翻译:本发明的耐热阻燃防护服织物由包含25〜75质量%的聚醚酰亚胺纤维,20〜50质量%的选自羊毛和阻燃人造丝的至少一种纤维的均匀混纺纱线形成 ,细纱为100质量%时为5〜25质量%的对位芳族聚酰胺纤维。 根据ISO 9151暴露于火焰的热传递测定,当织物暴露于80kW / m 2±5%的热通量3秒时,该织物不会发生热收缩。 在JIS L 1091A-4规定的可燃性试验中,长度和水平方向的长度不得超过10cm。 因此,本发明提供一种防护服面料,即使衣服在炎热的季节中穿着,或即使佩戴者在穿着时出汗,也能够提供佩戴舒适性。 该织物具有高耐热性和高阻燃性,良好的染料亲和性,并且织物可以以低成本生产。 本发明还提供了用于织物的细纱。
摘要:
A protective suit fabric of the present invention is a heat-resistant flame-retardant protective suit fabric, which is formed of a spun yarn. The fiber blend rate is: 25-75 mass % of polyetherimide fiber (A); 20-50 mass % of at least one fiber (B) selected from wool and flame-retardant rayon; and 5 to 25 mass % of para-aramid fiber (C). The spun yarn for forming the fabric is a two-fold yarn (20) prepared by twisting: 1) a single yarn (24) of a uniform blended spun yarn including the fiber components (A) and (B); and 2) a single yarn (23) of a sheath-core spun yarn including a core (21) of stretch-broken spun yarn of the para-aramid fiber (C) and a sheath (22) formed by blend-spinning the polyetherimide fiber (A) and the at least one fiber (B) selected from wool and flame-retardant rayon. The protective suit fabric has high washing resistance. The protective suit fabric provides favorable comfort in wearing even if the suit is worn in the hot seasons or even if the wearer perspires during exertion. The fabric has high heat resistance and high flame retardance, favorable dye affinity, and the fabric can be produced at a low cost. Also a spun yarn used for the fabric is provided.
摘要:
A method for controlling an engine includes, when the engine is operating within a particular range with comparatively low engine speed and high load, setting an effective compression ratio of 10:1 or above, retarding ignition timing by a predetermined amount and retarding the ignition timing within a first, relatively low engine speed range more than within a second, higher engine speed range, setting an injection mode of an injection valve to divided injections performed at least twice in a period from an intake stroke to an earlier-half stage of a compression stroke, performing, within the first engine speed range, a final injection in the earlier-half stage of the compression stroke, and performing, within the second engine speed range, the final injection in a late stage of the intake stroke and at least one injection other than the final injection in a middle stage of the intake stroke.
摘要:
A monitoring system for preventing crime in a home, includes a plurality of terminals for monitoring whether predetermined monitoring points are in a stationary or nonstationary state. Further, the monitoring system includes a central processing device for controlling the setting/canceling of alarm operations of the terminals. The central processing device has a communication unit that receives stationary/nonstationary information from the terminals and transmits predetermined information including commands to the terminals. Each terminal has a communication unit that transmits stationary/nonstationary information to the central processing device and receives the predetermined information from the central processing device. Thus bidirectional communication can be achieved between the central processing device and the terminals. The terminals may include a terminal with an emergency call unit which, in an emergency, calls or notifies another, and a terminal having a notification unit which indicates that a nonstationary state has been accepted by a predetermined point of contact.
摘要:
The present invention provides a process for producing an acetylenediol continuously by reacting a ketone with acetylene in the presence of an alkali catalyst, which process comprises continuously feeding, into a first-stage reactor, a reaction solvent, an alkali catalyst, a ketone and acetylene to give rise to a reaction, continuously introducing the reaction mixture into a second-stage reactor, and continuously feeding a fresh portion of the same ketone into the second-stage reactor to give rise to a reaction.
摘要:
The present invention provides a process for producing 2-butanone and 2-butanol under comparatively mild conditions with a decreased number of steps by direct oxidization of a hydrocarbon, which is cheaper than butenes, as a raw material using molecular oxygen such as air. The process for producing 2-butanone and 2-butanol comprises directly oxidizing n-butane using molecular oxygen in the presence of aluminum phosphate containing transition metal atoms and a selectivity-improving agent, as required.