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US 12,012,081 B2Granted
Brake control apparatus
AssigneeHitachi Astemo, Ltd.
InventorsToshihiro Koizumi, Chiharu Nakazawa
Life of this patent
Estimating the term…
Abstract
A guide ring of a pump portion is fixed in a cylinder containing hole in such a manner that a distal end of a first end portion thereof is positioned in a cam containing hole on an upper side with respect to an opening edge of the cylinder containing hole.
Claims14
A brake control apparatus comprising:
- a motor;
- a housing including a first surface on which the motor is disposed,
- a second surface spaced apart from the first surface by a predetermined distance in a direction of a rotational axis of the motor, and an insertion hole extending from the first surface toward the second surface in the direction of the rotational axis and configured to receive insertion of a shaft that is rotated by the motor;
- and
- a plunger pump including a plunger configured to be actuated by a rotation of the motor, and a bearing through which the plunger is inserted, the bearing being fixed to the housing so as to protrude in the insertion hole or be arranged coplanarly with the insertion hole,
- wherein the bearing includes a small inner-diameter portion and a large inner-diameter portion on an inner periphery thereof, the large inner-diameter portion having a larger inner diameter than the small inner-diameter portion.
3 more elements
A brake control apparatus comprising:
- a motor;
- a housing including a first surface on which the motor is disposed,
- a second surface spaced apart from the first surface by a predetermined distance in a direction of a rotational axis of the motor, and an insertion hole extending from the first surface toward the second surface in the direction of the rotational axis and configured to receive insertion of a shaft that is rotated by the motor;
- and
- a plunger pump including a plunger configured to be actuated by a rotation of the motor, and a bearing through which the plunger is inserted, the bearing being fixed to the housing so as to protrude in the insertion hole or to be arranged coplanarly with the insertion hole,
- wherein the bearing includes a flange portion on an outer periphery thereof,
- wherein the bearing includes a small outer-diameter portion on the outer periphery thereof, the small outer-diameter portion having a smaller outer diameter than the flange portion,
- wherein the small outer-diameter portion is fixed to the housing, and
- wherein the bearing includes a small inner-diameter portion and a large inner-diameter portion on an inner periphery thereof, the small inner-diameter portion being positioned on a radially inner side of the small outer-diameter portion, the large inner-diameter portion being positioned on a radially inner side of the flange portion.
6 more elements
Dependencies are inferred from the claim text.