1. Cylinder head for an internal combustion engine having:
a body with an upper face, a lower face, two end faces and two lateral faces,
said body integrating in a single cast piece, the engine exhaust manifold,
said exhaust manifold being defined by a plurality of conduits for the exhaust gases provided in the body of the head and forming separate subgroups of exhaust conduits merging into manifold portions superimposed and spaced apart from each other which terminate on a lateral face of the head, said conduits of the exhaust manifold merge into a common outlet terminating on said lateral face of the head,
a lower cooling jacket and an upper cooling jacket provided in the body of the head, substantially below and above conduits defining the exhaust manifold, and an intermediate cooling jacket interposed between the abovementioned manifold portions which are superimposed and spaced apart from each other,
said intermediate jacket communicating with the lower and upper jackets through two interconnection conduits arranged adjacent to said lateral face, at the two sides of the outlet area of the exhaust manifold;
the lower cooling jacket is longitudinally divided into a plurality of separate transverse chambers associated to various engine cylinders, and terminating in a longitudinal continuous portion of said lower jacket, extended along the exhaust side of the head,
the intermediate cooling jacket is extended over the entire longitudinal extent of the head, the intermediate cooling jacket has conduits for communication with the abovementioned chambers of the lower jacket and a cooling fluid outlet at one end of the head, for the exit of the cooling fluid from the head,
the upper cooling jacket has a first portion at the center of the head, above the upper portion of the exhaust manifold, and a second portion extended longitudinally from said first portion up to said end of the head, where said second portion forms an auxiliary circuit adjacent to said cooling fluid outlet.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A method for transmitting information on a bus system having at least two users, comprising:
providing a superordinate user;
providing at least one subordinate user;
transmiting the information including synchronization information in a definable, closed message frame;
uniquely assigning different information identifiers to different information; and
providing a plurality of information sections after each closed message frame for entering information by the at least one subordinate user.
2. The method according to claim 1, further comprising:
specifying a sequence for the information sections; and
assigning one information identifier to each information section.
3. The method according to claim 1, further comprising:
uniquely assigning the information identifiers to the at least two users.
4. The method according to claim 1, further comprising:
uniquely assigning the information identifiers to the at least one subordinate user.
5. The method according to claim 1, further comprising:
entering information of the bus system, by the at least one subordinate user, in an information section assigned to an information identifier; and
initiating a transmission, by the superordinate user, of a message frame having the information section assigned to the information identifier.
6. The method according to claim 1, wherein a number of information sections corresponds to a number of different information identifiers.
7. The method according to claim 1, wherein the bus system includes a LIN bus system.
8. The method according to claim 5, further comprising:
entering the synchronization information, by the at least one subordinate user, as a SynchBreak in at least one information section;
supplementing the synchronization information, by the superordinate user in a LIN bus system, with a SynchField, an IdentField, corresponding data fields, and a checksumField to form a complete LIN message frame; and
providing a least one new information section following the complete LIN message frame.
9. A bus system for transmitting information having at least two users, comprising:
a superordinate user;
at least one subordinate user;
a first arrangement for transmitting the information including synchronization information in a definable, closed message frame;
a second arrangement for uniquely assigning different information identifiers to different information; and
a third arrangement for providing at least one information section after each closed message frame for entering information by the at least one subordinate user.
10. The bus system according to claim 9, wherein the bus system includes a LIN bus system.
11. A device for transmitting information in a bus system having at least two users, comprising:
a superordinate user;
at least one subordinate user;
a first arrangement for transmitting the information including synchronization information in a definable, closed message frame;
a second arrangement for uniquely assigning different information identifiers to different information; and
a third arrangement for providing at least one information section after each closed message frame for entering information by the at least one subordinate user.
12. The device according to claim 11, further comprising:
a UART module for specifying a delay time following a message frame for the at least one information section.