Car provided with an internal combustion engine in which the pumps are operated by the camshafts

Patent metadata

Field	Value
Publication number	US-12320291-B2
Application number	US-202318454880-A
Country	US
Kind code	B2
Filing date	Aug 24, 2023
Priority date	Aug 25, 2022
Publication date	Jun 3, 2025
Grant date	Jun 3, 2025

Abstract

A car having: two front wheels; two rear wheels; an internal combustion engine, which is provided with: a plurality of cylinders, where respective pistons slide on the inside, a drive shaft connected to the pistons, a plurality of intake valves and of exhaust valves operated by respective camshafts, and a cylinder head, where the camshafts are arranged; at least one lubrication pump configured to cause a lubricant oil to circulate; and at least one cooling pump configured to cause a coolant liquid to circulate. A camshaft axially projects out of the cylinder head on at least one side, and the lubrication pump is coaxial to the camshaft and is directly connected to the camshaft so as to be caused to rotate by the camshaft.

First claim

The invention claimed is:

1. A car ( 1 ) comprising:
two front wheels ( 2 ); two rear wheels ( 4 );
an internal combustion engine ( 5 ), which is provided with: a plurality of cylinders ( 18 ), where respective pistons ( 19 ) slide on the inside, a drive shaft ( 20 ) connected to the pistons ( 19 ), a plurality of intake valves ( 22 ) and of exhaust valves ( 25 ) operated by respective camshafts ( 23 , 26 ), and a cylinder head ( 21 ), where the camshafts ( 23 , 26 ) are arranged;
at least one first lubrication pump ( 60 ) configured to cause a lubricant oil to circulate; and
at least one cooling pump ( 63 ) configured to cause a coolant liquid to circulate;
wherein a first camshaft ( 23 ) axially projects out of the cylinder head ( 21 ) on both sides;
wherein the first lubrication pump ( 60 ) is coaxial to the first camshaft ( 23 ) and is directly connected to the first camshaft ( 23 ) so as to be caused to rotate by the first camshaft ( 23 ); and
wherein the cooling pump ( 63 ) is coaxial to the first camshaft ( 23 ) on the opposite side relative to the first lubrication pump ( 60 ) and is directly connected to the first camshaft ( 23 ) so as to be caused to rotate by the camshaft ( 23 ).

2. The car ( 1 ) according to claim 1 , wherein:
a second lubrication pump ( 61 ) is provided; a second camshaft ( 26 ) axially projects out of the cylinder head ( 21 ) on at least one side; and
the second lubrication pump ( 61 ) is coaxial to the second camshaft ( 26 ) and is directly connected to the second camshaft ( 26 ) so as to be caused to rotate by the second camshaft ( 26 ).

3. The car ( 1 ) according to claim 2 , wherein a lubrication pump ( 61 ) is a recovery pump and the other lubrication pump ( 60 ) is a delivery pump.

4. The car ( 1 ) according to claim 1 , wherein two second lubrication pumps ( 61 ) are provided.

5. The car ( 1 ) according to claim 4 , wherein a lubrication pump ( 60 ) is a delivery pump and the other two lubrication pumps ( 61 ) are recovery pumps.

6. The car ( 1 ) according to claim 5 , wherein the two recovery lubrication pumps ( 61 ) are arranged on opposite sides of the cylinder head ( 21 ).

7. The car ( 1 ) according to claim 4 , wherein:
a second camshaft ( 26 ) axially projects out of the cylinder head ( 21 ) on both sides; and
two lubrication pumps ( 60 , 61 ) are coaxial to the second camshaft ( 26 ), are arranged on opposite sides of the second camshaft ( 26 ) and are directly connected to the second camshaft ( 26 ) so as to be caused to rotate by the second camshaft ( 26 ).

8. The car ( 1 ) according to claim 1 , wherein the lubrication of the internal combustion engine ( 5 ) is a dry-sump lubrication.

9. The car ( 1 ) according to claim 1 , wherein the internal combustion engine ( 5 ) is oriented with the drive shaft ( 20 ) arranged higher than the cylinders ( 18 ).

10. The car ( 1 ) according to claim 9 , wherein the internal combustion engine ( 5 ) comprises a crankcase ( 17 ), where the cylinders ( 18 ) are obtained, which are open downwards, and the cylinder head ( 21 ), which makes up the crown of the cylinders ( 18 ) and is arranged under the crankcase ( 17 ).

11. The car ( 1 ) according to claim 1 , wherein the internal combustion engine ( 5 ) is longitudinally arranged in a central or rear position.

12. The car ( 1 ) according to claim 1 , wherein, in the internal combustion engine ( 5 ), the cylinders ( 18 ) are arranged in line.

Assignees

• Ferrari Spa

Inventors

• Favaretto Fabrizio

Classifications

• F01M2001/0261

  driven by the camshaft · CPC title

• F01M1/02 Primary

  using lubricating pumps (pumps in general F04; lubricating pumps per se F16N) · CPC title

• B60K5/02

  with the engine main axis, e.g. crankshaft axis, substantially in or parallel to the longitudinal centre line of the vehicle · CPC title

• F01L2250/04

  the camshaft being driven by belts · CPC title

• F01L1/185

  Overhead end-pivot rocking arms · CPC title