Device for the metered supplying of fuel vapor into the intake p

Details Device for the metered supplying of fuel vapor into the intake p Device for the metered supplying of fuel vapor into the intake p

1989-09-08

1990-09-04

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123463, 123458, 123521, F02M 3900

Patent

active

049535145

ABSTRACT:
A device for the temporary storing and metered supplying of volatile fuel components present in the free space 22 of a fuel tank system 15 into the intake pipe 1 of a combustion engine 2. The device includes a deaeration pipe 25 which connects the free space 22 with the atmosphere 23 and in which a storage chamber 18 including an absorptive element is disposed. A pipe 20 connects the storage chamber 18 with the intake pipe and can be closed by means of an electromagnetic stop valve 13. An auxiliary valve 21 including a control chamber 14 which can be closed by means of a vacuum controller is disposed between the stop valve 13 and the intake pipe 1. A bypass 4 having an adjustable cross section is provided parallel to the auxiliary valve 21.

REFERENCES:
patent: 4377142 (1983-03-01), Otsuka
patent: 4467269 (1984-08-01), Matsomnra
patent: 4530210 (1985-07-01), Yamazaki
patent: 4628887 (1986-12-01), Mitchell
patent: 4671240 (1987-06-01), Tanaka
patent: 4703737 (1987-11-01), Cook
patent: 4763635 (1988-08-01), Ballhause
patent: 4809667 (1989-03-01), Uranishi
patent: 4865000 (1989-09-01), Yajima
patent: 4872439 (1989-10-01), Sonoda
patent: 4901902 (1990-02-01), Deicht et al.

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