Abstract: A suction tube unit connected between a cylinder block and a carburetor in a stratified scavenging engine has a suction tube for mixture made of an elastic material; and a suction tube for stratified scavenging air made of an elastic material. The suction tube for mixture and the suction tube for air have, at respective inlet ends connected to the carburetor, respective wall portions which face each other and have complementary shapes. A clearance space is provided between the wall portions of the suction tube for mixture and the suction tube for air.

Abstract: The certainty of supplying air to a scavenging channel through a piston groove is improved. In a cylinder wall 2, a gas venting port 10 is formed below and adjacent to a scavenging port 6a. The gas venting port 10 is independent from the scavenging port 6a, and is opened/closed by a piston as each of an air port 4a and the scavenging port 6a is. Upon a piston groove 8 being brought into communication with the gas venting port 10 as a result of the piston moving up (FIG. 1(II)), blown-back gas in a piston groove 8 can move to a crankcase through the gas venting port 10. Along with this, air can enter the piston groove 8 from the air port 4a.

Abstract: An oil cooling structure of an engine is provided that is capable of enhancing cooling performance of oil while preventing an increase in number of components or an increase in required space from being involved as much as possible. In an oil cooling structure of an engine in which a transmission case is attached to one end wall of an engine body, and a transmission mechanism for an accessory drive is provided in the transmission case, the transmission case is formed into a potlid-shaped body having a plurality of rib walls along a front-rear direction, and is attached to an engine front wall with an engine cooling fan, and case inner chamber portions partitioned by the rib walls in the transmission case are configured as a transporting passage of oil circulated by an oil pump.

Abstract: A piston for an engine is provided, that makes it possible to improve supply of engine oil to a recessed part thereof. The piston includes a resin coating film and a recessed part on a surface of a skirt part. In the piston, resin coating films are distributed in a patchy fashion on the surface of the skirt part. The recessed part is formed by the surface of the skirt part, between adjacent surfaces of the patchy resin coating films and by the adjacent resin coating films, forming a net-like groove. An outer-edge resin coating film, extending in a piston movement direction, is provided at the ends, in a piston circumferential direction of the skirt part.

Abstract: An engine cooler capable of suppressing a piston slap sound is provided. The engine cooler includes a cylinder block including a cylinder barrel and a water jacket, and a spacer stored in the water jacket, the water jacket surrounds the cylinder barrel, and the spacer encloses the cylinder barrel. Given that a width direction of the cylinder block is a lateral direction, a pressed member is pressed between the cylinder barrel and the spacer on lateral sides of the cylinder barrel, and a lower end of the pressed member is disposed above a lower end of each of right and left skirts of a piston located at a top dead center.

Abstract: To balance a “low-temperature scavenging effect” and a “high-temperature scavenging effect.” A scavenging system applicable to a leading-air type two-stroke air-cooled engine has a low-temperature scavenging passage and a high-temperature scavenging passage. The low-temperature scavenging passage has first and second passages and includes scavenging ports at upper end parts thereof. The high-temperature scavenging passage has first and second passages and includes scavenging ports at upper end parts thereof. An air is filled through a piston groove into the passages. The low-temperature scavenging passage has a relatively small capacity. The high-temperature scavenging passage has a relatively large capacity.

Abstract: To allow an intake negative pressure to directly act on a fuel outlet formed on a nozzle tube, and to guide a fuel discharged from the fuel outlet in the nozzle tube to the fuel-air mixture passage. A rotary carburetor (200) has a guide plate member (42) downstream of a fuel outlet (30) located in a through-hole (14). The guide plate member (42) has both side edges (42b) away from an inner wall surface (14a) of the through-hole (14). The through-hole (14) is divided by the guide plate member (42) into a first passage portion (44) and a second passage portion (46). The first passage portion (44) communicates through a piston groove with a scavenging passage of a cylinder. The fuel discharged from the fuel outlet (30) is guided by the guide plate member (42) to the second passage portion (46) and is supplied through the second passage portion (46) to a fuel-air mixture passage (24) of an engine intake system.

Abstract: An example information processing apparatus includes a display and processing circuitry. The processing circuitry is configured to control the information processing apparatus to perform operations including automatically connecting to a server; automatically receiving, from the server, one or more programs, without user selection of the one or more programs, the received programs including at least one new program, other than an update program, not already installed on the information processing apparatus; and automatically, and without user request, installing the received programs on the information processing apparatus.

Abstract: An object of the invention is to provide a communication service with high utilization efficiency. A mobile communication network distribution system includes: an acquisition unit that acquires condition information; a determination unit that determines a degenerate mobile communication network which provides a function satisfying a functional requirement based on the condition information acquired by the acquisition unit among a plurality of mobile communication networks to be a connection destination mobile communication network which is a connection destination of the UE; and a distribution unit that distributes the connection destination of the mobile communication terminal to the connection destination mobile communication network determined by the determination unit.

Abstract: An information processing apparatus includes connection means, reception means, and installation means. The connection means automatically connects to a server. The reception means automatically performs processes of receiving one or more programs from the server. The installation means automatically performs processes of installing the programs on the information processing apparatus.

Abstract: An engine-driven working machine has an engine unit, a housing, and a vaned rotor. An air passage is defined between a crankcase of the engine unit and a bottom wall of the housing. The air passage has an inlet opening provided near an oil seal on a drive-side shaft, and an outlet opening provided in a magnet-side wall so as to face the vaned rotor. Rotations of the vaned rotor cause airflow from the inlet opening through the air passage to the outlet opening.

Abstract: Provided is a method of manufacturing a high quality phosphonocrotonic acid derivative. The present invention is a method of manufacturing a compound represented by the following Formula (3) by reacting a compound represented by the following Formula (1) with a compound represented by the following Formula (2), which comprises a treatment process using an acid or base. [in the formula, R1 represents a C1-6 linear or branched alkyl group that may be substituted by a C6-10 aryl group, a C2-6 linear or branched alkenyl group that may be substituted by a C6-10 aryl group, a C2-6 linear or branched alkynyl group that may be substituted by a C6-10 aryl group, or a C6-10 aryl group, R2 represents a hydrogen atom, or a C1-6 linear or branched alkyl group that may be substituted by a C6-10 aryl group, R3 represents a C1-6 linear or branched alkyl group, a C6-10 aryl group, or a halogen atom, and X represents a halogen atom, and multiple R1s may be the same or different].

Abstract: An amplitude of a pressure fluctuation in a vicinity of a main nozzle of a carburetor (32) is decreased. An air cleaner (30) has a first inlet (60) that feeds air to an intake system air channel, and a second inlet (62) that feeds air to an intake system air-fuel mixture channel. A channel formation member (70) is attached to the second inlet (62). A channel length (L2) of an extension channel (72) formed by the channel formation member (70) is 110 mm or more.

Abstract: To improve the effect of preventing contamination of an element in an air cleaner. An air cleaner includes a first inlet (60) through which air is fed to an intake system air passage and a second inlet (62) through which air is fed to an intake system air-fuel mixture passage. An extended passage (72) leads to the second inlet (62), for example. A passage forming member (70, 204) forming the extended passage (72) is shaped to surround a periphery of the first inlet (60). The passage forming member (70, 204) forms a blown-back fuel diffusion preventing region (74) leading to the first inlet (60).

Abstract: There is provided an engine capable of reducing oil consumption. The engine includes a cylinder head, a cylinder head cover mounted above the cylinder head, a rocker arm covered by the cylinder head cover, and a breather chamber provided inside the cylinder head cover. As a front-rear direction is defined by a longitudinal direction of the cylinder head cover, the breather chamber has a blow-by gas inlet at one side in the front-rear direction, a blow-by gas outlet at another side in the front-rear direction, and an oil discharging guide chamber at an intermediate part in the front-rear direction. The blow-by gas inlet is opened on a bottom wall of the breather chamber, and a peripheral wall of the oil discharging guide chamber is protruded downwardly from the bottom wall of the breather chamber toward between the rocker arm provided at a side of the blow-by gas outlet and the blow-by gas inlet.

Abstract: A mobile communication system includes an OpenFlow network and CSCFs. A first CSCF comprises a terminal information assigning unit that assigns information of an incoming terminal of a destination of a signal accommodated in a second CSCF to a header part of a signal destined for the second CSCF. The OpenFlow network comprises a storage unit that stores a correspondence relationship between the incoming terminal and a device accommodating the incoming terminal, a terminal information acquisition unit that acquires information of the incoming terminal from the header part of the signal, a transmission destination identification unit that identifies the device that is a transmission destination from the information, and an open flow transmission unit that transmits a signal to the identified device.

Abstract: A virtual server for executing a communication process is implemented on virtualization resources without being inefficient even when different virtualization resource management schemes are included. A management system included in a mobile communication system is configured to include an NFVI which is virtualization resources including a physical server in which a VNF to execute a communication process is generated and includes a VNFM for managing the VNF, a VIM for managing the virtualization resources of the NFVI, and an orchestrator for managing all the virtualization resources of the NFVI, wherein the orchestrator includes a virtual server generation request section configured to input detailed information for implementing the VNF retained by the VNFM, rewrite the input detailed information according to a virtualization resource management scheme by the VIM, and request the VIM to generate the VNF.

Abstract: Leakage of detailed information for implementing a virtual server to execute a communication process on virtualization resources is prevented. There is provided a management system (10) included in a mobile communication system (1) configured to include an NFVI (60) which is virtualization resources including a physical server generated by a VNF (70) to execute a communication process, and the system includes a VNFM (30) for managing the VNF (70), a VIM (40) for managing the virtualization resources of the NFVI (60), an orchestrator (20) for managing all the virtualization resources of the NFVI (60), wherein the VNFM (30) includes a retention section (31) configured to retain detailed information for implementing the VNF (70) and a virtual server generation request section (32) configured to request the VIM (40) to generate the VNF (70) using the detailed information.

Abstract: A piston for an engine includes a skirt part, and a resin coating film and a recess formed on a surface of the skirt part. A plurality of the resin coating films are discretely arranged in spots on the surface of the skirt part, and a mesh-like groove is formed by the recess provided between the resin coating films. The recess formed on the skirt part between the resin coating films adjacent to each other in a piston circumference direction is set to be adjacent to another resin coating film in a piston moving direction. An end part of the resin coating film in the piston moving direction is formed in a concave shape when seen in a piston radius direction.

Abstract: There is provided an engine lubricating device with which passage resistance of an oil strainer can be reduced and a support stay for an oil filter is unnecessary. An oil strainer includes an outer cylinder and an inner cylinder, the outer cylinder and the inner cylinder respectively have straight central axes and form inner and outer double cylinders, the outer cylinder has a strainer inlet at a lower end, the inner cylinder has a peripheral wall formed as a filter portion, the oil strainer is led out in an orientation inclined downward from the cylinder block toward an inner bottom portion of an oil pan, an upper end portion of the outer cylinder is fixed to a cylinder block, and an upper end opening portion of the inner cylinder communicates with an oil passage inlet of the cylinder block.