Change-over valve unit for switching exhaust gas passages and ex

Details Change-over valve unit for switching exhaust gas passages and ex Change-over valve unit for switching exhaust gas passages and ex

1995-07-27

1998-06-09

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60297, 13762544, 137875, F01N 328

Patent

active

057619026

ABSTRACT:
A change-over valve unit has a change-over valve for switching a bypass passage and an exhausting passage disposed in parallel therewith. An adsorbent is disposed in the bypass passage to adsorb exhaust components. An actuator of the change-over valve is isolated from an adsorption cylinder by a pedestal. Furthermore, rotary shafts of the control mechanism of the change-over valve are positioned within the bypass passage of the adsorber when the change-over valve is positioned to open the main exhaust passage. Thus, the heat of the exhaust gas flowing through the main exhaust passage is not transmitted to the rotary shafts.

REFERENCES:
patent: 260490 (1882-07-01), Martin
patent: 1424776 (1922-08-01), Scheid
patent: 1585951 (1926-05-01), Waller
patent: 5264186 (1993-11-01), Harada et al.
patent: 5299601 (1994-04-01), Koch
patent: 5349816 (1994-09-01), Sanbayashi

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