Kawasaki Jukogyo Kabushiki Kaisha

Hidenori Arisawa

Hideyuki Imai

Tatsuhiko Goi

Yuji Shinoda

Motohiko Nishimura

Mitsuaki Tanaka

Kenichiro Tanaka

Masahide Kazari

Yoshiyuki Noguchi

Seiji Yamashita

Kenta Ogasawara

Maiko Sato

Akira Hayasaka

Hiroki Yamamoto

Hironori Hashimoto

Hiroshi Ishii

Koji Terauchi

Kenji Komatsu

Hirofumi Akahori

Takuya Ikeguchi

Akihito Abe

Mamoru Yoshitomi

Yoshihiro Yamasaki

Katsuyoshi Obayashi

A toroidal continuously variable transmission including a power roller; a support supporting the power roller rotatably; a thrust bearing receiving a load of the power roller in a direction along a rotating axis; and an oil passage supplying lubricating oil to the thrust bearing. A surface of the power roller opposing the support includes a first bearing grooved and the support opposing the power roller includes a second bearing groove. A virtual axis of a discharge port in the oil passage reaches a bearing groove that is one of the first bearing groove and the second bearing groove. Viewed from a direction perpendicular to the rotation axis, a portion of a retainer located at a radially inner side of a retaining hole of the retainer and a portion located at a radially inner side of the bearing groove are located at sides opposite to each other across the virtual axis.

Toroidal continuously variable transmission

A transmission cooling assembly of a helicopter includes: a transmission including a speed change structure that changes the speed of rotation produced by rotational power input from a prime mover and outputs the resulting rotational power and a housing accommodating the speed change structure; a cowl covering at least a part of an outer surface of the housing, with a gap defined between the cowl and the outer surface; and a flow structure that allows external air to flow through the gap.

Transmission cooling assembly of helicopter

A transmission lubricating assembly of a helicopter includes: a transmission including a speed change structure that changes the speed of rotation produced by rotational power input from a prime mover and outputs the resulting rotational power and a housing accommodating the speed change structure; and a lubricator that lubricates the speed change structure. The lubricator includes a collector that collects a mist of a lubricating oil in an internal space of the housing and a dropper that is disposed below the collector and that applies droplets of the lubricating oil to the speed change structure, the droplets resulting from the collected mist being gathered under its own weight.

Transmission lubricating assembly of helicopter

A gas turbine engine including: an exhaust diffuser including an inner tube and an outer tube that form therebetween an annular exhaust passage; a bearing chamber formed radially inside the inner tube for accommodating a bearing that supports a rotor of a turbine; a plurality of hollow struts extending across the exhaust passage; an oil introduction passage extending through one of the struts for introducing oil to be supplied to the bearing chamber; an oil drain passage extending through one of the struts for draining the oil from an exhaust oil inlet opened on a bottom surface of the bearing chamber; and an oil discharge passage for discharging a portion of the oil having passed through the oil introduction passage toward the oil drain inlet.

Gas turbine engine

A gear cooling structure includes: a gear including a plurality of teeth extending in a particular direction; and a nozzle that jets out oil toward a toothed surface of the gear. The nozzle extends in the particular direction, and has a width that is narrower than a gap between tips of the plurality of teeth.

Gear cooling structure

An aircraft engine apparatus () includes: a rotating shaft (); a fan () driven by the rotating shaft; a fan case surrounding the fan from outside in a radial direction of the rotating shaft; a nose cone () disposed upstream of the fan; a casing () that accommodates at least part of the rotating shaft and supports the fan case; a first motive force transmitter () that transmits motive force of the rotating shaft to the fan; and a support member () disposed inward of the first motive force transmitter in the radial direction, the support member coupling the nose cone to the casing such that the support member supports the nose cone in a stationary state.

Aircraft engine apparatus

In a continuously variable transmission including: a first transmission unit including a first input disc and a first output disc; and a second transmission unit disposed such that a back surface of a second input disc is opposed to a back surface of the first input disc, an input gear shroud covering an input gear disposed between the back surfaces of the first and second input discs, a first input disc side surface shroud integrally provided to a first input disc support supporting the first input disc on a housing of the continuously variable transmission, and a second input disc side surface shroud integrally provided to a second input disc support supporting the second input disc on the housing of the continuously variable transmission, are provided.

A toroidal-type stepless transmission includes: at least a pair of an input disc and an output disc; a power roller tiltably provided between the pair of the input disc and the output disc, the power roller being configured to transmit a driving force from the input disc to the output disc; and disc shrouds covering the input disc and the output disc, respectively. Each of the disc shrouds has an outer peripheral portion formed with an oil discharge groove configured to discharge an oil within each disc shroud to the outside, the oil discharge groove penetrating from an inner surface of the disc shroud to an outer surface of the disc shroud and extending in a circumferential direction of the disc shroud.

Toroidal-type stepless transmission

A planetary gear device includes: a sun gear; a plurality of planet gears that mesh with the sun gear; and a baffle unit disposed in a circumferential gap between the adjacent planet gears. The baffle unit includes: a first introduction opening portion open in a radially inward direction to introduce lubricating oil, which has lubricated the sun gear and the planet gears, into the baffle unit; an end wall forming one end in an axial direction of the first introduction opening portion; a discharge opening portion to discharge lubricating oil in the baffle unit; and a guide portion disposed at a side portion of the baffle unit on a rear side in rotation direction of the sun gear, and configured to cover the first introduction opening portion in the circumferential direction and to guide the lubricating oil to an outer circumference of the adjacent planet gears.

Planetary gear device

A lubricating device for a gear train () including a plurality of gears meshing with each other includes a shroud () configured to cover the gear train () and a housing () configured to cover the shroud (). The shroud () includes: an oil supply nozzle () configured to supply oil (OL) to a meshing position () of the gear train (); and oil-drain ports () through which the oil (OL) is discharged from the shroud. The housing () includes, at its lower part, a draw-out port () through which the oil (OL) discharged from the oil-drain ports () is drawn to the outside of the housing. Guide members () are provided between the shroud () and the housing (). The guide members () guide the oil (OL) discharged from the respective oil-drain ports () of the shroud () such that the oil (OL) flows downward through space (S) between the shroud () and the housing ().

Gear train lubricating device

A gear train lubricating device configured to supply lubricating oil OL to a gear included in a gear train is provided. The gear train lubricating device includes: a shroud covering, among components constituting the gear, at least teeth of the gear; and a lubricating oil supply port through which the lubricating oil OL is supplied to a meshing position of the gear. The shroud has an outlet port formed therein, through which the supplied lubricating oil OL is discharged. The outlet port is formed in a portion of the shroud that is positioned radially outward from the gear, such that the outlet port is disposed at an angular position that is 90&#xb0;&#xb1;15&#xb0; forward from the meshing position in a rotation direction Rof the gear.

A fuel tank which has partition walls capable of flowing fuel into a fuel suction port more easily at the time of the acceleration/deceleration of a vehicle is provided. A fuel tankfor vehicle has a fuel suction portthrough which a fuel pump sucks fuel in the fuel tankfrom the lower portion of the inner space of the fuel tank, a first partition wallsurrounding one of the front and and the rear and the sides of the fuel suction portto have an opening to the other of the front and the rear and preventing the fuel from moving to one of the front and the rear, and a second partition wallsurrounding the sides and the other of the front and the rear of the first partition wallto have an opening to one of the front and the rear and preventing the fuel from moving to the other of the front and the rear.

Fuel tank for vehicle

A planetary gear system () includes: a sun gear () having external teeth; a plurality of planet gears () having external teeth, each planet gear meshing with the sun gear; a ring gear () having internal teeth, the ring gear meshing with the planet gears; and a baffle unit () disposed between the planet gears which are adjacent to each other, the baffle unit having side faces (F,R) positioned near the respective planet gears. The baffle unit () has: oil supply holes () which are formed in a tip portion () facing an outer periphery of the sun gear () and which jet out lubricating oil (OL) to mesh positions () between the sun gear and the planet gears; and a collection opening () which is formed in at least one of the side faces and through which the lubricating oil (OL) that has been jetted out is collected into the baffle unit ().

Planetary gear system

A planetary gear system () includes: a sun gear () having external teeth; a ring gear () having internal teeth; at least one planet gear () having external teeth meshed with the external teeth of the sun gear and the internal teeth of the ring gear. The planet gear () has, at its outer circumferential face, the external teeth which are formed of a pair of sets of teeth aligned in an axial direction and an annular groove () which is formed between the pair of sets of teeth. The planetary gear system () further includes: a fixed support shaft () provided for each of the at least one planet gear () and configured to rotatably support the planet gear () via a bearing, the bearing including a pair of rolling element rows () aligned in the axial direction; an oil supply path (LP) through which lubricating oil is supplied, at an inner side of the planet gear (), to the pair of rolling element rows (); and an oil discharge path (oil outlet) which extends through the planet gear () and through which the lubricating oil is discharged to the annular groove () from space between the pair of rolling element rows () which are provided at the inner side of the planet gear ().

Planetary gear system and gear reducer

This invention provides a lubricating system for a gear train including: a lubricating oil supply port configured to supply a lubricating oil in a direction vertical to both axes of a pair of gears and toward a mesh point at which the pair of gears are meshed with each other; a shroud configured to cover at least teeth of the pair of gears so as to form a flow passage of the lubricating oil between the pair of gears and the shroud; and a pair of discharge ports respectively configured to discharge the lubricating oil from the flow passage. The pair of discharge ports are respectively positioned at two portions of the shroud respectively opposed to the mesh point across respective axes of the pair of gears.

Growing community of inventors

Kakogawa, Japan

Hidenori Arisawa