Piston pump with helical gear transmission
CN114347965BActive Publication Date: 2026-07-10ROBERT BOSCH GMBH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ROBERT BOSCH GMBH
- Filing Date
- 2021-10-13
- Publication Date
- 2026-07-10
AI Technical Summary
Technical Problem
In existing power-assisted vehicle braking systems, the helical gear transmission mechanism has high manufacturing costs and insufficient mechanical strength, making it difficult to maintain stable engagement under high axial forces.
Method used
The nut is made of plastic and wrapped with a metal sleeve to prevent radial expansion. Combined with multifunctional components and a swivel bearing support, it achieves low-cost manufacturing and high mechanical strength.
Benefits of technology
This reduces the manufacturing cost of the nut while improving its mechanical strength and engagement stability under high axial forces, ensuring the effective transmission of braking pressure.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN114347965B_ABST
Abstract
The invention proposes that the nut (15) of the helical gear drive (13) of a piston pump (3) of a hydraulic assisted vehicle brake system is constructed from a plastic body (19) which is encased with a metal sleeve (20). The plastic body (19) has a through hole with an internal thread.
Need to check novelty before this filing date? Find Prior Art