Multi-piston hydraulic pump for a free piston engine
US6241488A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 28, 1996 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Jun 28, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B1/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a multi-piston hydraulic pump for a free-piston engine, comprising two engine pistons (2) mounted on a common piston rod (1) which is also fitted with pin-shaped pistons (5a, 5b) of the hydraulic pump at a radial distance from the piston rod (1). Mounting blocks (6a,6b) for the hydralic punp pistos (5a, 5b) extend from the engine piston rod (1) crosswise relative to each other at an axial distance from each other. The hydraulic pistons (5a and 5b) fastened to different mounting blocks (6 and 6b and 6b) are located for the most part side by side over the same section of the axial length of the engine piston rod and the free ends thereof point in opposite directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.