US3882739A — Drive unit with an internal combustion engine and…

Claim 1

Independent Claim 146 words

A drive unit arrangement with an internal combustion engine, an automatic change-speed transmission connected in the output of the internal combustion engine, an externally controlled ignition for operating the internal combustion engine, a suction pipe provided on the internal combustion engine in which the vacuum varies with the engine load, the change-speed transmission including shifting means for controlling the shifting operation in dependence on the engine load, a modulating pressure means influenced by the vacuum in the suction pipe for effecting the shifting operation, the arrangement comprising: ignitionadjusting means for adjusting the ignition for ''''delayed'''' ignition for the purposes of exhaust decontamination, and means operatively connected with said ignition-adjusting means for controlling the magnitude of the modulating control pressure upon adjustment of said ignition adjustment means toward ''''delayed'''' to correspond to the reduction of the engine torque which occurs as a result of the ignition adjustment.

Claim 2

Dependent Claim 146 words

A drive unit arrangement with an internal combustion engine, an automatic change-speed transmission connected in the output of the internal combustion engine, an externally controlled ignition for operating the internal combustion engine, a suction pipe provided on the internal combustion engine in which the vacuum varies with the engine load, the change-speed transmission including shifting means for controlling the shifting operation in dependence on the engine load, a modulating pressure means influenced by the vacuum in the suction pipe for effecting the shifting operation, the arrangement comprising: ignitionadjusting means for adjusting the ignition for ''''delayed'''' ignition for the purposes of exhaust decontamination, and means operatively connected with said ignition-adjusting means for controlling the magnitude of the modulating control pressure upon adjustment of said ignition adjustment means toward ''''delayed'''' to correspond to the reduction of the engine torque which occurs as a result of the ignition adjustment.

Claim 3

Dependent Claim 125 words

A drive unit arrangement according to claim 1, wherein said control means includes a first piston surface means operatively connected with the suction pipe and continuously acted upon by the vacuum therefrom, said first piston surface means being responsive to increases and decreases in the vacuum from the suction pipe to result in reducing and increasing, respectively, the magnitude of the modulating control pressure, a second piston surface means operatively connected with said first piston surface means, adapted to be acted upon by the vacuum, said second piston surface means operating in the same direction as said first piston surface means, said first piston surface means and said second piston surface means operating in unison upon adjustment of said ignition adjusting means toward ''''delayed'''' ignition.

Claim 4

Dependent Claim 18 words

A drive unit arrangement according to claim 2, wherein said piston surface means are constituted by piston diaphragms.

Claim 5

Dependent Claim 27 words

A drive unit arrangement according to claim 3, wherein said control means for controlling the magnitude of the modulating control pressure includes a Control slide valve means.

Claim 6

Dependent Claim 19 words

A drive unit arrangement according to claim 1, wherein the modulating control pressure means includes a modulating pressure line.

Claim 7

Dependent Claim 97 words

A drive unit arrangement according to claim 2, wherein said ignition adjustment means includes an ignition distributor means for the internal combustion engine, a vacuum-adjusting motor connected with said ignition distributor means, said vacuum-adjusting motor being provided with a vacuum chamber, means for operatively connecting the suction pipe with said vacuum chamber when said ignition distributor means is in a ''''delayed'''' position and for connecting said vacuum chamber with the atmosphere when said ignition distributor means is in a ''''normal or advanced'''' position, and means for freely communicating said vacuum chamber with said second piston surface means.

Claim 8

Dependent Claim 134 words

A drive unit arrangement according to claim 6, wherein said control means includes an adjusting member and a twin-diaphragm-adjusting means operatively connected with said adjusting member, said twin diaphragm-adjusting means having an adjusting member and two piston diaphragms, said two piston diaphragms forming a portion of said first and second piston surface means, said two piston diaphragms being spaced at a distance from one another and clamped onto said last-mentioned adjusting member, and wherein a vacuum chamber is formed between one piston diaphragm and the walls of said diaphragm adjusting means, and a second vacuum chamber is formed in the space between said two piston diaphragms, one of said vacuum chambers being operatively connected with the suction pipe and the other with said vacuum chamber of said adjusting motor of the ignition distributor means.

Claim 9

Dependent Claim 22 words

A drive unit arrangement according to claim 7, wherein said adjusting member of said control means is a control slide valve means.

Claim 10

Dependent Claim 18 words

A drive unit arrangement according to claim 8, wherein said control slide valve means includes an adjusting piston.

Claim 11

Dependent Claim 21 words

A drive unit arrangement according to claim 9, wherein said adjusting member of said twin diaphragm-adjusting means is an adjusting bolt.

Claim 12

Dependent Claim 137 words

A drive unit arrangement according to claim 2, wherein said ignition adjusting means includes an ignition distributor means, and wherein said control means includes an adjusting member and a twin-diaphragm-adjusting means operatively connected with said adjusting member, said twin diaphragm-adjusting means having an adjusting member and two piston diaphragms, said two piston diaphragms constituting a portion of said first and second piston surface means, said two piston diaphragms being spaced at a distance from one another and clamped onto said last-mentioned adjusting member, and wherein a first vacuum chamber is formed between one piston diaphragm and the walls of said diaphragm adjusting means, a second vacuum chamber is formed in the space between said two piston diaphragms, one of said vacuum chambers being operatively connected with the suction pipe and the other with said ignition distributor means.

Claim 13

Dependent Claim 145 words

A drive unit arrangement which includes an internal combustion engine, an automatic change-speed transmission connected in the output of the internal combustion engine, a vacuum means provided on the engine, means varying the vacuum in dependence upon the engine load, the change-speed transmission including automatic shifting means, modulating pressure means responsive to the engine load, the engine being further provided with an ignition distributor means and adjusting means for adjusting the engine ignition for ''''delayed'''' ignition for purposes of decontamination of the exhaust gases under certain circumstances resulting in a decrease of the engine torque, the arrangement comprising: means for controlling the magnitude of the modulating pressure, means operatively connected with said control means for operating the same to provide a modulating pressure corresponding to the reduction of the engine torque established by the adjusting means when tHe latter adjusts the ignition to ''''delayed'''' ignition.

Claim 14

Dependent Claim 145 words

A drive unit arrangement which includes an internal combustion engine, an automatic change-speed transmission connected in the output of the internal combustion engine, a vacuum means provided on the engine, means varying the vacuum in dependence upon the engine load, the change-speed transmission including automatic shifting means, modulating pressure means responsive to the engine load, the engine being further provided with an ignition distributor means and adjusting means for adjusting the engine ignition for ''''delayed'''' ignition for purposes of decontamination of the exhaust gases under certain circumstances resulting in a decrease of the engine torque, the arrangement comprising: means for controlling the magnitude of the modulating pressure, means operatively connected with said control means for operating the same to provide a modulating pressure corresponding to the reduction of the engine torque established by the adjusting means when tHe latter adjusts the ignition to ''''delayed'''' ignition.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1978-05-12	1978-11-11	1979-05-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-05-12	1982-11-11	1983-05-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-05-12	1986-11-11	1987-05-13	$7700.00	Window Closed / Lapsed

Drive unit with an internal combustion engine and with an automatic change-speed transmission connected in the output thereof

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