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Dual Master Cylinder Brake Assembly with Quick Fill

An assembly, fast technology, applied in the direction of brakes, brake transmissions, hydraulic brake transmissions, etc., can solve the problem of vehicles occupying gaps and so on

Active Publication Date: 2022-01-28
CMBF LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While these increased running clearances contribute to fuel efficient operation, they also require more hydraulic fluid volume to occupy the clearance when the brakes are applied to slow or stop the vehicle

Method used

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  • Dual Master Cylinder Brake Assembly with Quick Fill
  • Dual Master Cylinder Brake Assembly with Quick Fill
  • Dual Master Cylinder Brake Assembly with Quick Fill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Figure 1A Embodiments of the vehicle brake system 10 are schematically shown, which include an exemplary hydraulic brake assembly 12 according to the principles of the present invention. The hydraulic brake assembly 12 provides a pressurized hydraulic fluid to each associated actuating friction element 14 associated with the vehicle's wheel 16, thereby delays or stop the rotational movement of the wheel 16 when the user actuates the brake pedal 18. In the illustrated embodiment, as described below, a single brake pedal 18 actuates two cylinders of the brake assembly 12. The brake assembly 12 is in communication with the hydraulic fluid supply portion provided in the box 20 and the hydraulic fluid high pressure supply unit 22. The brake system can also include a pump, a hydraulic accumulator, or other suitable means for pressurizing hydraulic fluid.

[0016] Figure 1B Another embodiment of the vehicle brake system 10a is shown schematically, which includes an exemplary hyd...

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PUM

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Abstract

A hydraulic brake assembly (12) is disclosed that includes a housing (24) having first and second side-by-side bores (30), each bore defining a respective master cylinder assembly. Each master cylinder assembly includes a master cylinder piston (32) that is slidably movable to and between active and inactive positions by actuation of a corresponding brake pedal (18a, 18b) between activities. A spool (74) slidably disposed within a piston bore (70) of the master cylinder piston (32) is operable in a first mode to operate in a first mode upon initial movement of the master cylinder piston (32) from the inactive position to the active position. A pressure directs hydraulic fluid from the fast fill chamber (62) to the master cylinder chamber (50). The spool (74) is operable in a second mode to direct hydraulic fluid from the fast fill chamber (62) to the tank (20) when the pressure in the master cylinder chamber (50) reaches a predetermined threshold.

Description

[0001] Cross-reference related application [0002] This patent application requires the benefits of the priority of the US Provisional Application (in the review) of the sequence No. 62 / 376, 481 submitted on August 18, 2016. The entire contents of this patent application are incorporated herein by reference. Technical field [0003] The present invention generally relates to a vehicle brake system, and more particularly to an improved changing system having a fast filling function. Background technique [0004] In the design and development of the vehicle, efforts to achieve improved fuel efficiency, especially for 8-level trucks or other industrial vehicles. A strategy for this effort to improve fuel efficiency involves increasing brake operating gaps. Although these increased operating gaps help fuel efficiently, they also need more hydraulic fluid volume to occupy the gap when the brake is applied to slow down or stop the vehicle. Therefore, more energy is required to provide ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T11/224B60T11/10B60T11/16B60T11/20B60T11/21B60T11/228
CPCB60T11/10B60T11/16B60T11/20B60T11/21B60T11/224B60T11/228B60T11/232B60T2201/12B60T11/203
Inventor M·巴彻勒
Owner CMBF LLC