Fuel injection pump for internal combustion engines
US5138997A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1991 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Jan 22, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M59/44
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection pump for internal combustion engines has a pump and distributor plunger (21) actuated by a cam plate (12) performing a rotary lifting movement. The cam plate (12) is coupled to the drive shaft for joint rotation therewith. The cam plate has face cams (14) thereon engaging rollers (16) guided in a substantially stationary roller ring (17). For the purpose of detecting the speed and the radial position of the drive shaft (11), a radial position transmitter is provided which has a transmitter wheel (36) firmly connected in the direction of rotation with the drive shaft (11) and which has a detector (37) scanning the transmitter wheel (36) and fixed in the roller ring (17). The roller ring is held on the drive shaft (11) by a ball bearing (41). Thereby uncontrolled relative movements between detector (37) and transmitter wheel (36) are eliminated, and the angular rotational position as well as the speed of the drive shaft (11) can be detected with a high degree of accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.