公开(公告)号：US10180122B2

公开(公告)日：2019-01-15

申请号：US15260978

申请日：2016-09-09

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Kazuhiro Asayama

IPC: F02M37/04 ,  F04B23/06 ,  F04B19/22 ,  F04B53/14 ,  F04B53/16 ,  F02M59/02

Abstract: A fuel pump includes a plunger that reciprocates inside a cylinder. The fuel pump includes a first movable element connected to the plunger, a second movable element that functions as a counterweight for preventing or reducing vibrations that are created by reciprocation of the first movable element, an electromagnet provided between the first movable element and the second movable element, a magnetic member that is provided between the first movable element and the second movable element and that attracts both the first movable element and the second movable element when the electromagnet is energized, and a first spring that urges the first movable element and the second movable element so as to move away from each other.

公开(公告)号：US10087916B2

公开(公告)日：2018-10-02

申请号：US15272946

申请日：2016-09-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kazuhiro Asayama

IPC: F04B17/04 ,  F04B9/06 ,  F02M37/04 ,  F02M37/08 ,  F04B1/02 ,  F04B11/00 ,  F04B17/03 ,  F04B19/22 ,  F04B53/00

Abstract: A fuel pump includes a first plunger that reciprocates in a first cylinder. The fuel pump further includes a first mover connected to the first plunger; a second mover that serves as a counterweight for suppressing vibration that occurs due to reciprocating movement of the first mover; an electromagnet and a magnetic member that are provided between the first mover and the second mover; a plate disposed between the first mover and the second mover; and a third spring and a fourth spring being a pair of springs sandwiching the plate between the third spring and the fourth spring, the third spring and the fourth spring having end portions connected to a housing.

公开(公告)号：US10240589B2

公开(公告)日：2019-03-26

申请号：US15476070

申请日：2017-03-31

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kazuhiro Asayama ,  Satoki Takagi

IPC: F04B17/04 ,  H02K21/02

Abstract: A plunger electric fuel pump includes a cylinder; a plunger; a pump body; a movable element to which the plunger is connected; a fixed core provided so as to face the movable element; a rotational core including a permanent magnet; an electric motor configured to rotate the rotational core; and a spring configured to urge the movable element in a direction away from the pump body. The rotational core and the fixed core are provided with a switching portion configured to switch between a first state and a second state when a rotational phase of the rotational core is changed, the first state being a state where the magnetic force of the permanent magnet is not applied to the movable element, the second state being a state where the magnetic force of the permanent magnet is applied to the movable element.

公开(公告)号：US10001098B2

公开(公告)日：2018-06-19

申请号：US14874833

申请日：2015-10-05

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroya Ando ,  Kazuhiro Asayama ,  Yoshinori Ogaki

IPC: F04B1/04 ,  F02M59/10 ,  F04B7/00 ,  F04B53/14 ,  F04B9/04

CPC classification number: F02M59/102 ,  F04B1/0408 ,  F04B1/0413 ,  F04B1/0426 ,  F04B1/0439 ,  F04B7/0057 ,  F04B9/042 ,  F04B53/14

Abstract: A fuel pump includes a holed disk-shaped plate and a coil spring to press the plate toward a lifter. The plate has an inner circumferential surface to be engaged with a groove in a projection-side end portion of a plunger. Also, a joint port that connects the inner peripheral surface of the plate to an outer peripheral surface thereof is provided in the plate. The coil spring is located between the plate and a pump body. The plate is assembled in the fuel pump to dispose the joint port at a position in an opposite direction to the direction of a side force to be generated during compression of the coil spring when viewed from a central axis of the coil spring.

公开(公告)号：US09840979B2

公开(公告)日：2017-12-12

申请号：US15259781

申请日：2016-09-08

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kazuhiro Asayama

IPC: F02D41/30 ,  F02M59/10 ,  F02M59/02 ,  F02B63/04 ,  H02P7/00 ,  H02K7/108 ,  H02K7/00 ,  H02H1/00 ,  F02D41/38 ,  F02D41/06 ,  F02D41/12 ,  F02N11/08

CPC classification number: F02D41/3082 ,  F02B63/042 ,  F02D41/065 ,  F02D41/123 ,  F02D41/3845 ,  F02D2250/04 ,  F02M59/025 ,  F02M59/10 ,  F02N11/0814 ,  H02H1/00 ,  H02K7/006 ,  H02K7/108 ,  H02P7/00

Abstract: A fuel supply apparatus for an internal combustion engine includes a motor, a fuel pump, an alternator, a centrifugal clutch, and an electronic control unit. The centrifugal clutch is configured to, when the rotation speed of the output shaft of the motor is higher than or equal to an engaging rotation speed, connect the output shaft of the motor with the rotary shaft of the alternator. The engaging rotation speed is a rotation speed higher than a rotation speed of the rotary shaft at which torque that acts on the rotary shaft as a result of generation of electric power by the alternator becomes maximum and is a rotation speed lower than a rotation speed at which torque for driving the high-pressure fuel pump cannot be provided by only the motor at the time when the motor is driven at rated output power.

公开(公告)号：US10066613B2

公开(公告)日：2018-09-04

申请号：US15275917

申请日：2016-09-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kazuhiro Asayama ,  Hirokazu Yokoyama ,  Satoki Takagi

IPC: F04B17/04 ,  F04B17/03 ,  F02M59/02 ,  F02M59/10 ,  F04B15/00 ,  F04B19/22 ,  F04B53/14 ,  F04B53/16 ,  H02K33/12 ,  H02K33/06 ,  H02K33/16

Abstract: A fuel pump includes a plunger that reciprocates in a cylinder. The fuel pump further includes a first mover connected to the plunger, a second mover serving as a counterweight for the first mover, an electromagnet provided between the first mover and the second mover, a first magnetic member provided between the first mover and the second mover, and a first spring urging the first mover and the second mover away from each other. Further, a second magnetic member is provided between both of the electromagnet and the first magnetic member and a first inclined surface of the first mover, while a third magnetic member is provided between both of the electromagnet and the first magnetic member and a second inclined surface of the second mover.

公开(公告)号：US20170074255A1

公开(公告)日：2017-03-16

申请号：US15260978

申请日：2016-09-09

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Kazuhiro Asayama

IPC: F04B11/00 ,  F04B19/22 ,  F02M37/04 ,  F04B53/16 ,  F02M59/02 ,  F04B23/06 ,  F04B53/14

CPC classification number: F02M37/04 ,  F02M59/025 ,  F04B17/042 ,  F04B19/22 ,  F04B23/06 ,  F04B49/06 ,  F04B49/12 ,  F04B53/001 ,  F04B53/14 ,  F04B53/16

Abstract: A fuel pump includes a plunger that reciprocates inside a cylinder. The fuel pump includes a first movable element connected to the plunger, a second movable element that functions as a counterweight for preventing or reducing vibrations that are created by reciprocation of the first movable element, an electromagnet provided between the first movable element and the second movable element, a magnetic member that is provided between the first movable element and the second movable element and that attracts both the first movable element and the second movable element when the electromagnet is energized, and a first spring that urges the first movable element and the second movable element so as to move away from each other.

Abstract translation: 燃料泵包括在气缸内往复运动的柱塞。 燃料泵包括连接到柱塞的第一可移动元件，用作防止或减少由第一可移动元件的往复运动产生的振动的配重的第二可移动元件，设置在第一可移动元件和第二可移动元件之间的电磁体 元件，设置在所述第一可移动元件和所述第二可移动元件之间并且当所述电磁体被通电时吸引所述第一可移动元件和所述第二可移动元件的磁性元件;以及第一弹簧，其将所述第一可移动元件和所述第二可移动元件 可移动元件以便彼此远离。