Patent · US Expired

Suction air filter for a combustion engine with diaphragm carburetor

US5706777A · kind A · utility

11Cited by

2References

12Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Helmut Schlessmann · Waiblingen, DE
Hans-Georg Wiedmann · Backnang, DE
Rudolf Dirks · Waiblingen, DE

Key dates

Filing date	Aug 9, 1996
Grant date	Jan 13, 1998
Priority date	—
Expiry date	Aug 9, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/28
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A suction air filter for an internal combustion engine with a diaphragm carburetor, wherein the combustion engine has a suction channel for taking in combustion air from a clean air side of the air filter and for taking in fuel from a fuel chamber, wherein the diaphragm of the diaphragm carburetor controls the intake of the fuel into the fuel chamber, and wherein the dry side of the diaphragm is loaded with the pressure of the clean side of the suction air filter, has a housing and a filter body including a block of foamed plastic material and a blocking layer connected to one side of the block. The filter body is positioned in the housing such that the blocking layer is located at the clean side of the suction air filter.

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