Yanmar Co.

Maibara, Japan

Yanmar Co.

Maibara, Japan

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Patent
Yanmar Co. | Date: 2017-06-07

The present invention has an object to make farm work comfortable by, for example, controlling air conditioning in a cabin and reducing noise in the cabin. A work vehicle includes a cabin 7 to cover an operators seat 8 on a traveling body 2. A cabin frame 100 that constitutes a framework of the cabin 7 includes a pair of left and right front pillars 101, a pair of left and right rear pillars 102, a front beam 103, a rear beam 104, and side beams 105. The front beam 103 couples upper end portions of the front pillars 101 to each other. The rear beam 104 couples upper end portions of the rear pillars 105 to each other. Each of the side beams 105 couples to each other upper end portions of each of the front pillars 101 and each of the rear pillars 102 that stand at a front and rear. The rear beam 104 is formed to have a U-shaped cross-section by presswork of a metal plate material.


Patent
Yanmar Co. | Date: 2017-03-03

A working vehicle includes: an engine mounted on a traveling machine body; a hydraulic continuously variable transmission configured to shift driving force from the engine; a transmission case incorporating the hydraulic continuously variable transmission; and rear traveling units disposed on both left and right sides of the transmission case via rear axle cases. The transmission case is divided into three sections of a front case, an intermediate case, and a rear case. The left and right rear axle cases are attached to both left and right sides of the rear case. The intermediate case, coupling the front case to the rear case, is coupled to left and right vehicle body frames forming the traveling machine body.


Patent
Yanmar Co. | Date: 2017-06-07

A remote control apparatus 112 capable of communicating with a control apparatus 30 of an autonomously running work vehicle 1 via a communication apparatus 110, the remote control apparatus 112 comprising a communication apparatus 111, a control apparatus 119, a display apparatus 113, and cameras 42F, 42R for obtaining images of the front and rear, wherein the display apparatus 113 is provided with at least a remote control region 113A for controlling the autonomously running work vehicle 1, a peripheral image region 113B for displaying images captured by the cameras 42F, 42R, and a work status display region 113C, wherein the peripheral image region 113B is provided with a frontal view and a rear view.


Patent
Yanmar Co. and Johnson Matthey | Date: 2017-06-28

Provided is an oxidation catalyst for diesel engines, which enables reduction of the production cost, while maintaining the performance of an oxidation catalyst. An oxidation catalyst for diesel engines, which is configured of a plurality of catalyst layers containing Pt and/or Pd. This oxidation catalyst for diesel engines is composed of an upstream-side catalyst layer 5, a downstream-side inner catalyst layer 6 in the flow direction of the exhaust gas, and a downstream-side outer catalyst layer 7 is additionally formed so as to cover the surface of the downstream-side inner catalyst layer 6. The upstream-side catalyst layer 5 and the downstream-side inner catalyst layer 6 contain Pd, and the downstream-side outer catalyst layer 7 contains Pt. The amounts of Pt and Pd contained in the upstream-side catalyst layer 5 and the amounts of Pt and Pd contained in the downstream-side inner catalyst layer 6 are constantly set to certain values, while the amount of Pt contained in the downstream-side outer catalyst layer 7 is set to a value which enables the oxidation efficiency to be at a predetermined value or higher.


Patent
Yanmar Co. | Date: 2017-05-31

In a work vehicle according to the present invention, a control device calculates, for each of a plurality of speed-changing stages in a PTO transmission, an expected maximum rotational speed of PTO rotary power that is output from the PTO shaft when an engine rotational speed changing operation member is operated to a maximum extent, and shows, in a listed manner, the calculated results in a liquid crystal display part of a display device. The present invention can inform an operator of the maximum rotational speed of PTO rotary power that is output from the PTO shaft for each speed-changing stage in the PTO transmission without performing a speed changing operation on the PTO transmission.


Patent
Yanmar Co. | Date: 2017-07-19

A working vehicle 1 according to the present invention includes: an engine 5 mounted on a traveling machine body 2; a hydraulic continuously variable transmission 500 configured to shift driving force from the engine 5; a transmission case 17 incorporating the hydraulic continuously variable transmission 500; and rear traveling units 4 disposed on both left and right sides of the transmission case 17 via rear axle cases 19. The transmission case 17 is divided into three sections of a front case 112, an intermediate case 114, and a rear case 113. The left and right rear axle cases 19 are attached to both left and right sides of the rear case 113. The intermediate case 114, coupling the front case 112 to the rear case 113, is coupled to left and right vehicle body frames 15 forming the traveling machine body 2.


Patent
Yanmar Co. | Date: 2017-04-04

The objective of the present invention is to provide an engine with improved startability and stable operation regardless of the driving environment and usage conditions. The engine is equipped with a control means, which calculates a standard injection timing on the basis of the target rotational frequency of the engine and a standard injection amount, that is, the amount of fuel injected, and which corrects the standard injection timing using at least one correction amount. A fuel injection control unit calculates a cooling water correction amount on the basis of the target rotational frequency of the engine, the standard injection amount, and the cooling water temperature, and when the cooling water temperature is less than a first prescribed temperature the control unit corrects the standard injection timing using only the cooling water correction amount.


Patent
Yanmar Co. | Date: 2017-07-26

Provided is an engine generator in which the operation panel is easily accessible. An engine generator 1 is configured such that a generator 2 and an engine 3 which drives the generator 2 are received within a casing 4. A panel 7 having a predetermined size is removably provided to each side surface of the casing 4. An operation board 10 for the engine generator 1 can be installed instead of an arbitrarily selected one of the plurality of panels 7.


A nodular graphite cast iron for pistons according to an embodiment contains, in mass%, C: 2.7 to 4.3%, Si: 2.0 to 3.5%, Mn: 0.3 to 0.8%, Mg: 0.02 to 0.10%, Cu: 0.3 to 1.0%, Cr: 0.05 to 0.90%, and Mo: 0.05 to 1.00% with the balance being composed of Fe and inevitable impurities. Then, the C content and the Si content fall within a composition range defined by a line sequentially joining respective points of point A (2.7%, 3.5%), point B (3.2%, 2.0%), point C (4.3%, 2.0%), and point D (3.8%, 3.5%) indicated by (the C content and the Si content) in a graph illustrating the relation between the C content and the Si content.


Patent
Yanmar Co. | Date: 2017-04-21

The invention aims at providing a work vehicle in which an operator can easily view each of switches in spite of the work vehicle in which a plurality of switches such as a DPF regeneration switch, a working switch and a one-touch automatic switch are concentrically provided on a front surface of a control seat. In a work vehicle having a cabin which is inward provided with a control seat installed in a travel machine body, a DPF regeneration switch, a working switch, and a one-touch automatic switch are provided. The DPF regeneration switch is provided on an upper surface of a steering column in a base portion of a control steering wheel, and the DPF regeneration switch is arranged in a field of vision of an operator under a straight moving work posture.

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