YAMABIKO CORPORATION Patent applications |
Patent application number | Title | Published |
20160097344 | Air Leading-Type Stratified Scavenging Two-Stroke Internal-Combustion Engine - The efficiency of charging air to a scavenging channel is enhanced by generating a gas flow in a piston groove simultaneously with the piston groove coming into communication with an air port. A piston groove | 04-07-2016 |
20160097343 | Air Leading-Type Stratified Scavenging Two-Stroke Internal-Combustion Engine - The certainty of supplying air to a scavenging channel through a piston groove is improved. In a cylinder wall | 04-07-2016 |
20150337765 | Stratified Scavenging Two-Stroke Internal Combustion Engine And Carburetor Thereof - A carburetor achieves better emission characteristics while improving a combustion state by increasing a delivery ratio of a stratified scavenging engine and reducing intake resistance. No dividing wall is provided between a throttle valve | 11-26-2015 |
20150337764 | Carburetor For Stratified Scavenging Two-Stroke Engine - The present invention is to prevent mixing of fresh air and an air-fuel mixture when a throttle valve is fully opened and increase a delivery ratio. A main nozzle ( | 11-26-2015 |
20150196181 | Grip For Backpack-Type Air Blowing Machine - A grip for a backpack-type air blowing machine which performs a work by using air discharged from a distal end of an air blowing pipe that is coupled to a blower body driven by a power source while the air blowing pipe is manipulated by an operator with the power source and the blower body being carried on a back of the operator. The grip comprises a base section that constitutes an attachment section to the air blowing pipe, a vertical grip section that is provided with a proximal end portion provided continuously to the base section, and that extends in a direction away from the air blowing pipe, and a lateral grip section that extends backward along the air blowing pipe from a free end of the vertical grip section. The lateral grip section is located adjacent to a back of a hand of the operator holding the air blowing pipe. | 07-16-2015 |
20140299099 | Internal Combustion Engine - A main nozzle ( | 10-09-2014 |
20140238371 | Two-Stroke Internal Combustion Engine - The scavenging passage includes a wall surface that defines an orientation direction of a main scavenging gas flow spouting from the scavenging port to the cylinder chamber. In a boundary portion between the scavenging port and the scavenging passage, a wall surface located on an opposite side of the exhaust port is composed of an inclined surface inclined in a direction further away from the exhaust port than a wall surface of a deep portion of the scavenging passage. The scavenging port includes a rear wall surface located in a portion on the opposite side of the exhaust port. The rear wall surface continues to the inclined surface to extend in the direction away from the exhaust port and generates an incidental scavenging gas flow incidental to the main scavenging gas flow and higher in speed than the main scavenging gas flow. | 08-28-2014 |
20130277408 | Shoulder Harness For Portable Working Machine - A shoulder harness includes a harness network ( | 10-24-2013 |
20130247389 | TOP-HANDLE WORKING MACHINE - A top-handle portable working machine includes a grip configuration that makes it easy for a worker to manipulate the implement as intended in order to adapt to tasks in which accuracy, fineness, or an attractive finish is needed. The direction of an axis in which the top grip extends and the direction of a working axis of the implement are inclined relative to each other in a vertical direction so as to intersect at a point to the rear of the housing at angle between 15 and 25°. A detachable grip-position restricting member is attachable to a concave part of the top grip. | 09-26-2013 |
20130121753 | Pipe-Shaped Holder For Work Machine - A pipe-shaped fixture ( | 05-16-2013 |
20130108423 | AIR-BLOW WORKING MACHINE | 05-02-2013 |
20130091816 | Intake Device for Engine - The intake device for an engine includes a carburetor section and an air cleaner section. The carburetor section includes a body having an intake passage which has an opening communicating with the air cleaner section and a choke valve being a butterfly valve having a plate-like valve body. The air cleaner section includes an air filter, an air-flow chamber provided between the air filter and the intake passage, and a reverse-flow restriction surface provided within the air-flow chamber. The air cleaner section further includes a plate-like partition extending from a location near an air-cleaner side periphery of the valve body of the choke valve in the full-open position to a location near the reverse-flow restriction surface so as to continue the periphery. | 04-18-2013 |
20130037011 | Two-Stroke Internal Combustion Engine - It is intended to effectively prevent blow-by with no need for large changes in typical structures of two-cycle internal combustion engines. A main scavenging passage ( | 02-14-2013 |
20120325872 | Backpack Strap Attaching Structure - A backpack strap includes a strap main body, an upper end of which is connected to a backpack frame, a pad attached to the strap main body on a user side, and a contact state holding unit holding an upper end of the pad in contact with the backpack frame. Upper portions of the strap main body and pad are spaced apart from each other by a specified distance. The upper end of the pad has a shape and a strength that is, when contacting the backpack frame, able to prevent the backpack strap from falling sideways. Due to a tensile force of the upper portion of the strap main body and a stiffness of the upper portion of the pad, the upper portion of the pad is held in a projecting state with the upper end of the pad acting as a support point. | 12-27-2012 |
20120292917 | THREE PHASE INVERTER TYPE GENERATOR - A three phase inverter-type generator includes an engine, an AC generator driven by the engine, a rectifier for converting the output of the AC generator into a DC voltage, a three phase inverter for converting the output of the rectifier into a three phase AC voltage, a three phase transformer connected to the output side of the three phase inverter, and a filter, whereby the three phase transformer has a primary-side connection and a secondary-side connection having a three phase connection, the secondary-side connection having first through third windings forming a star connection in which one end of each is respectively connected to a neutral point, with each having the same number of windings and a mutual phase difference of 120°. | 11-22-2012 |
20120216367 | Blower - A handheld blower has a body including a combustion engine and a blower section driven by the combustion engine, and a handle coupled to the body. The blower section has an air outlet directed forward with respect to an operator. The handle has a grip portion extending in a front-back direction with respect to the operator, a front arm extending from a front portion of the grip portion to the body, and a rear arm extending from a rear portion of the grip portion to the body. The front arm and the rear arm are more flexible in the front-back direction than in directions perpendicular to the front-back direction. | 08-30-2012 |
20120145137 | TWO-CYCLE ENGINE - An engine includes a cylinder block, and a piston slidably mounted in a cylinder, with the cylinder block being formed with an exhaust passage leading to a combustion chamber through an exhaust port, a first scavenging port opened to an inner circumferential surface of the cylinder, a first communication passage formed from the first scavenging port in a radial direction of the cylinder, and a first scavenging passage formed with an opening on a bottom surface of the first communication passage, in which a side surface on a far side from the exhaust port forming the communication passage is formed towards the far side from the exhaust port in the combustion chamber, and the opening portion of the first scavenging passage and a landing portion formed in the periphery of the opening portion are formed at a bottom portion of the communication passage. | 06-14-2012 |
20120137827 | FILLER MEMBER FOR CRANKSHAFT - A filler member to be installed in a crankshaft including a crank web includes: an arm member, extending in a diametrical direction of a crank journal, and a weight member extending in a radial direction of the crank journal. The filler member includes: a fitting member, a connecting member mounted on the bodies. The fitting member is fixed to an outer side face of the crank web. The connecting member is mounted on the bodies to stride the arm member on inner side face of the crank web. | 06-07-2012 |
20120096672 | Air-Blow Work Machine - A blower tube ( | 04-26-2012 |
20120024276 | LOOP SCAVENGED TWO-STROKE INTERNAL COMBUSTION ENGINE - A loop scavenged two-stroke internal combustion engine which can effectively restrain blow-by of fresh gas with a relatively simple configuration is provided. A horizontal scavenging angle θb in at least one spot of a scavenging passage | 02-02-2012 |
20110180054 | Two-Stroke Internal Combustion Engine and Its Scavenging Method - In a two-stroke internal combustion engine using air for scavenging its combustion chamber ( | 07-28-2011 |
20110079206 | TWO-STROKE ENGINE - In a two-stroke engine ( | 04-07-2011 |
20110017183 | TWO-STROKE INTERNAL COMBUSTION ENGINE - There is provided a reverse scavenged two-stroke internal combustion engine that is capable of effectively suppressing the short-circuiting of fresh charge (unburnt air-fuel mixture), while at the same time being capable of further improving scavenging efficiency, combustion efficiency, etc. The horizontal sectional shape of at least one pair of scavenging passages ( | 01-27-2011 |
20110017182 | TWO-STROKE INTERNAL COMBUSTION ENGINE - There is provided a loop-scavenged two-stroke internal combustion engine that is capable of effectively suppressing the short-circuiting of fresh charge (unburnt air-fuel mixture), while at the same time being capable of further improving scavenging efficiency, combustion efficiency, etc., as well as of improving the durability and output stability of a cylinder and a piston. One pair or a plurality of pairs of scavenging passages ( | 01-27-2011 |
20100300083 | EXHAUST GAS COMBUSTION DEVICE AND POWER GENERATOR INCLUDING THE SAME - Provided is an exhaust gas combustion device which is capable of early prevention of clogging, and also a power generator including the device. An exhaust gas combustion device of the present invention includes: a DPF; a sensor which measures the pressure of exhaust gas to be introduced into the DPF; a sensor which measures the pressure of exhaust gas purified by the DPF; and a controller which receives outputs from both sensors and calculates a pressure difference. When the pressure difference is equal to or larger than a preset threshold, the heater is supplied with power from a power generating unit to thereby heat exhaust gas. Accordingly, PM accumulated inside the DPF is combusted and removed, preventing excessive clogging of the DPF even during light-load operation. | 12-02-2010 |
20100294616 | Work Apparatus With Safety Equipment - An engine-driven brush cutter ( | 11-25-2010 |
20100294098 | Work Apparatus With Safety Equipment - An engine-driven brush cutter ( | 11-25-2010 |
20100294097 | Work Apparatus With Safety Equipment - In a brush cutter ( | 11-25-2010 |
20100147544 | Work Apparatus With Internal Combustion Engine - Problems: For enhanced safety of a work apparatus with an internal combustion engine, a cutting element is prevented from an accidental run due to an accidental increase of the engine revolution while a throttle control trigger is in a released state. | 06-17-2010 |