Internal-combustion engines – Starting device – With charge or cylinder heating
Patent
1991-12-23
1994-12-13
Dolinar, Andrew M.
Internal-combustion engines
Starting device
With charge or cylinder heating
F02N 17047
Patent
active
053721020
ABSTRACT:
The invention relates to a process and apparatus for heating the intake air in internal-combustion engines by means of a flame starting system with at least one glow plug. The apparatus is controlled in such a manner that the glow plug is continuously preheated during a first time period and is operated in pulses in a following second time period and the glow plug is switched off after a safety time has elapsed. The glow plug is preheated after it has been switched off, taking into account the instantaneous glow plug temperature during the cooling and the voltage available in such a manner that the temperature required for a repeat start is reached within a narrow tolerance band. In the case of a repeat starting operation taking place after the safety time has elapsed, the renewed preheating time for the glow plug is specified in accordance with a value determined from the glow plug temperature and the available voltage, the instantaneous glow plug temperature being determined from the cooling time of the glow plug after it has been switched off.
REFERENCES:
patent: 4624226 (1986-11-01), Klak et al.
patent: 4934349 (1990-06-01), Demizu
European Search Report No. 91118286.3--dated Aug. 26, 1993.
Patent Abstracts of Japan, vol. 9, No. 3, (M-349), 9 Jan. 1985 & JP-A-59 153 979 (Nippon Denso KK) 1 Sep. 1984.
Patent Abstracts of Japan, vol. 8, No. 267, (M-343) 7 Dec. 1984 & JP-A-59 138 775 (Toyota Jidosha KK) 9 Aug. 1984.
Patents Abstracts of Japan, vol. 8, No. 120, (M-300) 6 Jun. 1984 & JP-A-59 025 084 (Yanmar Diesel KK) 8 Feb. 1984.
Hase Friedrich
Joppig Peter
Klak Roland
Koppitz Andreas
Schmid Friedrich
Dolinar Andrew M.
Mercedes-Benz AG
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