Modular rotary discoid valve assembly for engines and other applications
US6029617A · kind A · utility
Inventors
Key dates
| Filing date | Jan 26, 1999 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Jan 26, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L7/16
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A modular rotary discoid valve assembly includes a housing for positioning on an engine of the piston and cylinder type. The housing includes an intake passage for conducting a working fluid to the cylinder and an exhaust passage for conducting the working fluid from the cylinder. The housing has an internal cavity which intercepts the intake and exhaust passages, which cavity contains a rotary valve member having a window whose size may vary with increasing distance from the disc axis and/or angular position on the member. The window is so positioned that when the member is rotated, it opens and closes the intake and exhaust passages in a periodic manner. The valve assembly also includes a throttle member mounted in the housing parallel to the rotary valve member. The throttle member has a hole which may be positioned opposite the intake passage. The throttle member is movable relative to the axis of the rotary valve member between a first position which places the hole in the shutter means opposite a first portion of the valve member and a second position which places that hole opposite a second portion of the valve member so that when the valve member is rotated, the open time o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.