Patent · US Expired

Intake air heater for internal combustion engine with perforated plate heater element partially traversing air passage

US4685437A · kind A · utility

23Cited by
4References
3Claims
0Family size

Assignees

Inventors

Key dates

Filing dateSep 5, 1985
Grant dateAug 11, 1987
Priority date
Expiry dateSep 5, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/12
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

An air heater for heating intake air for an internal combustion engine only in cold start or further warming up operation, having a frame which defines an opening for passing air therethrough, and at least one heater element in the shape of a perforated plate such as a lattice or honeycomb plate supported by the frame so as to traverse only a part of the opening area of the air passage opening, while leaving a substantial part of the opening area free as untraversed by the heater element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.