525 patents
Page 12 of 27
Utility
Engine exhaust manifold
19 Apr 22
An engine exhaust manifold including exhaust inlet parts at four locations corresponding to a plurality of exhaust ports, one exhaust outlet part, and an exhaust confluence part to collect exhaust gas from each of the exhaust inlet parts and send to the exhaust outlet part.
Kentaro Nagai, Ryutaro Komura, Takashi Yamaguchi, Kumiko Sakaguchi, Takahiro Yamazaki
Filed: 12 Nov 20
Utility
Hydraulic system for working machine
19 Apr 22
A hydraulic system for a working machine includes a hydraulic actuator having a first fluid chamber and a second fluid chamber, an accumulator, an outputting fluid tube to output an operation fluid, and a switching valve to be switched between a first position and a second position.
Yuji Fukuda, Keigo Honda, Ryosuke Kinugawa, Ryuki Nishimoto, Yuji Yamashita, Daisuke Sakurai
Filed: 7 Aug 20
Utility
Hydraulic system for working machine
29 Mar 22
A hydraulic system includes a first hydraulic actuator, a second hydraulic actuator, a first pump to supply operation fluid to the first hydraulic actuator, a second pump to supply operation fluid to the second hydraulic actuator, a second control valve to control operation fluid to be supplied from the second pump to the second hydraulic actuator, and a first control valve including a main control valve to control operation fluid to be supplied from the first pump to the first hydraulic actuator, and a subordinate control valve configured to control operation fluid to be supplied from the second pump to the second control valve and to the first hydraulic actuator.
Hisayuki Hiramatsu, Kazuaki Shobu
Filed: 25 Jun 18
Utility
Prime mover and working machine having the same
29 Mar 22
A prime mover includes an engine, a fan to generate a cooling airflow around the engine, an air-intake tube to supply outside air to the engine, a connection tube to supply, to the air-intake tube, a blow-by gas generated in the engine, and a wind shielding member to shield the connection tube from the cooling airflow, the wind shielding member being arranged around the connection tube.
Yuki Takano, Makoto Noguchi, Tetsuji Matsushita
Filed: 11 Apr 19
Utility
Power system for a work vehicle
22 Mar 22
A working machine includes: a first generator having: a rotor to be rotated by power from a PTO shaft; a rotor coil provided to the rotor; and a stator coil to generate electricity when magnetizing current is applied to the rotor coil; a working device to be operated by the electricity generated by the first generator; and a converter device to convert surplus electricity not consumed by the working device into the magnetizing current to be applied to the rotor coil.
Masaru Kawane, Sumio Yagyu, Takao Nakagawa, Yukifumi Yamanaka, Go Takaki
Filed: 30 Jun 20
Utility
Hydraulic system in work machine
22 Mar 22
A hydraulic system in a work machine includes a hydraulic pump to supply pilot hydraulic oil.
Yuji Fukuda
Filed: 17 Apr 20
Utility
Ventilator-equipped engine
22 Mar 22
The ventilator-equipped engine is configured to: guide a blow-by gas generated in a crankcase to an intake passage through an inside of a cylinder head, an inside of a head cover, and a pressure regulating valve; and to directly introduce fresh air into an internal space of the cylinder head by providing a fresh air introduction passage that extends across the intake passage and the cylinder head.
Hiroaki Isoshima, Takeshi Kawasaki, Yuichiro Yamada
Filed: 11 Dec 20
Utility
Heat insulating material
22 Mar 22
A heat insulating material includes a central portion to cover a first base or a second base of an exhaust gas purifier of an engine, and a first rectangular portion and a second rectangular portion which have substantially rectangular shapes and which are connected to the central portion substantially symmetrically with respect to a center of the central portion.
Taketo Kimura, Hayato Kawano
Filed: 23 Mar 21
Utility
Satellite radio wave sensitivity distribution management system and method for work vehicle
22 Mar 22
A satellite radio wave sensitivity distribution management system for a work vehicle that travels automatically in a work site by satellite navigation technology includes a satellite positioning module that outputs satellite position data and reception sensitivity based on satellite information from a satellite, a sensitivity reduction event detection section that detects occurrence of a sensitivity reduction event, a sensitivity reduction event information generation section that generates sensitivity reduction event information including an occurrence location of the sensitivity reduction event, an occurrence time of the sensitivity reduction event, and satellite identification data, a sensitivity reduction event information storage section, a reception obstacle determination section that determines a reception obstacle as the cause of the sensitivity reduction event, and a sensitivity reduction management section that manages a sensitivity reduction area and a sensitivity reduction time zone.
Naohiro Ishikawa, Akisato Hori, Akira Chabata, Yasushi Watabe
Filed: 20 Dec 17
Utility
Working machine
15 Mar 22
A working machine includes a machine body having a front and a rear opposite to the front in a front-rear direction and an engine mounted in the machine body.
Keigo Honda, Hiroaki Nakagawa, Daisuke Sakurai, Hiroshi Fujiwara
Filed: 25 May 20
Utility
Electric work vehicle
15 Mar 22
An electric work vehicle includes a vehicle body having traveling wheels, a traveling motor capable of driving the traveling wheels, and a battery unit having, at one end portion thereof, a pair of left and right leg wheels, the battery unit being detachably attachable to a battery storage section of the vehicle body and being capable of supplying electric power to the traveling motor.
Kazuaki Matsuda, Hirokazu Ito, Masahiro Yamada, Tomohiko Hisakuni
Filed: 29 Oct 19
Utility
Work management system and work management method
15 Mar 22
A work management system includes a generator attached to a structure body that is provided to a transmission case of a working machine, configured to be driven by power transmitted from a PTO shaft, and configured to transmit power to a working device provided in the working machine, an information obtaining portion configured to obtain operation information representing operation of the working device that is activated by the power from the generator, a work management portion configured to manage working of the working device based on the operation information obtained by the information obtaining portion, and a controller portion configured to control the working device based on the operation information obtained by the information obtaining portion.
Sumio Yagyu, Takao Nakagawa, Masaru Kawane, Piet Jan Van Der Marel
Filed: 27 Dec 19
Utility
Spark ignition engine
15 Mar 22
A cylindrical part capable of supporting an ignition-coil-integrated plug cap is formed on a head cover so as to correspond to a plug hole of a cylinder head.
Hiroaki Isoshima, Takeshi Kawasaki, Yuichiro Yamada
Filed: 12 Nov 20
Utility
Work vehicle
8 Mar 22
A work vehicle is disclosed that includes a front guard that is provided at a front end portion of a traveling vehicle body and protects the traveling vehicle body, and an auxiliary device that can be attached to and removed from the front guard.
Yumi Kushimoto, Masatoshi Sakai, Junichi Fujiwara, Yusuke Morita
Filed: 13 May 19
Utility
Working vehicle
8 Mar 22
A working vehicle includes a traveling clutch to be switched between an engaging state and a disengaging state, a brake to brake the traveling device according to an operation of a brake operator, and a controller to perform a braking control to perform the braking, and an auto-switching controller to switch the traveling clutch from the engaging state to the disengaging state.
Yoshihiko Kuroshita, Tetsuo Yamaguchi, Michita Kono, Hitoshi Azuma, Shinji Ohara
Filed: 5 Jun 20
Utility
Work vehicle
1 Mar 22
A work vehicle includes a vehicle body, a plurality of traveling devices for driving traveling, a plurality of bending link mechanisms supporting the plurality of traveling devices to the vehicle body with allowing the plurality of traveling devices to be elevated/lowered independently of each other, a driving mechanism capable of changing respective postures of the plurality of bending link mechanisms independently of each other, and an idle wheel freely rotatably supported to an intermediate bending portion of each one of the plurality of bending mechanisms.
Junichi Ishikawa, Minoru Hiraoka
Filed: 28 Mar 18
Utility
Work machine
1 Mar 22
A work machine includes a transmission case (5) extending in the front-back direction of a machine body, a first hydraulic unit (V) provided on one of mutually opposite wall portions (5a, 5b) of the transmission case (5), a second hydraulic unit (44) provided on a second one of the wall portions (5a, 5b), and a supply passage (43) configured to supply operating oil from the first hydraulic unit (V) to the second hydraulic unit (44).
Daisuke Nakayama, Hironobu Nogami, Norita Tottori, Naoya Okamoto
Filed: 10 Nov 20
Utility
Engine equipped with supercharger
1 Mar 22
There is provided an engine equipped with a supercharger that suppresses heat deterioration of engine oil.
Hiroki Oso, Nobuyoshi Okada, Shingo Matsunobu, Yoshinori Tanaka, Ayako Sakurai
Filed: 22 Oct 19
Utility
Shift power transmission apparatus of a tractor and tractor
1 Mar 22
A shift power transmission apparatus of a tractor that has a small up-down width or a small transverse width and a short front-rear length.
Tomonari Tsuchida, Hidetoshi Hana, Ryoma Iwase
Filed: 20 Nov 18
Utility
Work vehicle
22 Feb 22
A work vehicle of the invention includes: a pair of right and left front wheels disposed in a front part of the vehicle body; a pair of right and left rear wheels disposed in a rear part of the vehicle body; a side wall disposed at an outer end part of one side in a right-left direction of the vehicle body; and a radiator disposed between the front wheels and the rear wheels in a side view and on an inner side relative to the side wall in a plane view, wherein the radiator is disposed with an air-suction surface thereof facing toward the side wall to form an air-suction opening in a bottom part of a space between the air-suction surface and an inner surface of the side wall, and wherein a dust-proof body protruding downward to a lower level than a level of a lower end of the vehicle body is disposed on at least one of: a front side of the air-suction opening and a rear side of the front wheels; and a rear side of the air-suction opening and a front side of the rear wheels.
Tatsuya Nagatomi
Filed: 9 Jun 20