Hydraulic pressure generation apparatus
AssigneeAutoliv Nissin Brake Systems Japan Co., Ltd.
InventorYoshiteru Matsunaga
Life of this patent
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Abstract
One embodiment provides a hydraulic pressure generation apparatus including: a base body; a motor; a reservoir tank; a master cylinder which generates a brake hydraulic pressure by a brake manipulator; and a slave cylinder which generates a brake hydraulic pressure the motor. The base body includes: a first cylinder hole which is a bottomed cylinder hole, and in which the first piston is inserted; a second cylinder hole which is a bottomed cylinder hole, and in which the second piston is inserted; and a supply passage which leads from the reservoir tank to a hydraulic chamber of the slave cylinder. The supply passage is provided with a check valve which permits only inflow of brake fluid from the reservoir tank to a side of the slave cylinder, near a brake fluid discharge port of the second cylinder hole.
Claims19
A hydraulic pressure generation apparatus including:
- a base body;
- a motor attached to the base body;
- a reservoir tank which is attached to the base body and stores a brake fluid;
- a master cylinder which generates a brake hydraulic pressure by a first piston which is linked to a brake manipulator;
- and
- a slave cylinder which generates a brake hydraulic pressure by a second piston by the motor as a drive source,
- wherein the base body includes:
- a first cylinder hole which is a bottomed cylinder hole, and in which the first piston is inserted;
- a second cylinder hole which is a bottomed cylinder hole, and in which the second piston is inserted;
- and
- a supply passage which leads from the reservoir tank to a hydraulic chamber of the slave cylinder,
- wherein the supply passage is provided with a check valve which permits only inflow of brake fluid from the reservoir tank to a side of the slave cylinder,
- wherein the check valve is disposed near a brake fluid discharge port of the second cylinder hole, and
- wherein an axial line of the check valve is parallel with an axial line of the second cylinder hole.
A hydraulic pressure generation apparatus including:
- a base body;
- a motor attached to the base body;
- a reservoir tank which is attached to the base body and stores a brake fluid;
- a master cylinder which generates a brake hydraulic pressure by a first piston which is linked to a brake manipulator;
- and
- a slave cylinder which generates a brake hydraulic pressure by a second piston by the motor as a drive source,
- wherein the base body includes:
- a first cylinder hole which is a bottomed cylinder hole, and in which the first piston is inserted;
- a second cylinder hole which is a bottomed cylinder hole, and in which the second piston is inserted;
- and
- a supply passage which leads from the reservoir tank to a hydraulic chamber of the slave cylinder,
- wherein the supply passage is provided with a check valve which permits only inflow of brake fluid from the reservoir tank to a side of the slave cylinder,
- wherein the check valve is disposed near a brake fluid discharge port of the second cylinder hole, and
- wherein an axial line of the check valve coincides with an axial line of the second cylinder hole.
A hydraulic pressure generation apparatus including:
- a base body;
- a reservoir tank which is attached to the base body and stores a brake fluid;
- wherein the base body includes:
- a master cylinder comprising a cylinder hole which is a bottomed cylinder hole, and in which a first piston is inserted;
- a slave cylinder comprising a cylinder hole which is a bottomed cylinder hole, and in which a second piston is inserted;
- and
- a supply passage which leads from the reservoir tank to a hydraulic chamber of the slave cylinder,
- a check valve in the supply passage disposed near a brake fluid discharge port of the slave cylinder, which permits only inflow of brake fluid from the reservoir tank to a side of the slave cylinder,
- wherein a shortest separation distance between the check valve and the discharge port is shorter than or equal to a diameter of the cylinder hole of the slave cylinder.
Dependencies are inferred from the claim text.