FORM 2
THE PATENTS ACT 1970
[39 OF 1970]
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See Section 10; rule 13]
"COMPACT INTEGRATION OF ELECTRIC OIL PUMP UNITING GE ROTOR BODY WITH MOTOR HOUSING"
ADVIK HI-TECH PVT. LTD.
an Indian private Limited Company,
Plot No. B-5, Chakan Industrial Area, Phase II,
Village-Vasuli, Tal-Khed,
Dist-Pune,Pin-410501
Email: cie@advik.co.in
The following specification describes the invention.

CROSS-REFERENCE TO RELATED APPLICATIONS AND PRIORITY
[001] The present application claims priority from Indian provisional application having application number 202421019884 and filed on 18th day of March, 2024.
FIELD OF INVENTION
[002] The present invention relates to oil pumps. More specifically, the present invention is related to an integrated electric oil pump used in the lubrication system of vehicles specifically electric vehicles.
BACKGROUND OF THE INVENTION
[0001] Electric pumps are devices that deliver or pressurize liquids. It transfers the mechanical energy of the prime mover or other external energy to the liquid, which increases the liquid energy and is mainly used to transport liquids including water, oil, acid and alkali liquids, emulsions, suspoemulsions, and liquid metals.
[0002] The existing electric oil pumps adopts the in-line magnet to be pasted on the surface of the rotor core. The magnetic flux formed by the in-line magnet is small, and the vibration and noise of the pump are relatively large; and therefore it is inconvenient to install and not suitable for high-speed rotation.
[0003] Also, in existing electric oil pumps, the rotor assembly bonded with magnets with shaft and has difficult/complex process of manufacturing and also it is time consuming.
[0004] Also, in existing electric oil pumps required separate motor and separated pumping system which additionally cause large space requirement.
[0005] Hence there is a requirement of an integrated electric oil pump which is simple to manufacture, simple to assemble, less time consuming, and capable to bear high speed and small in size.

OBJECTS OF THE INVENTION
[0006] The main object of a present invention is to provide an integrated electric oil pump.
[0007] The object of the present invention is to provide the oil pump that can simply assembled.
[0008] Yet another object of the invention is to provide the oil pump that can capable to bear high speed.
[0009] Yet another object of the invention is to provide the oil pump that can simple to manufacture.
[00010] Yet another object of the invention is to provide the oil pump that is simple in size.
[00011] Yet another object of the invention is to provide the oil pump that is high efficient.
[00012] Yet another object of the invention is to provide the oil pump that is cost effective.
SUMMARY OF THE INVENTION
[00013] The present invention relates to oil pumps. More specifically, the present invention is related to an integrated electric oil pump used in the lubrication system of vehicles specifically electric vehicles.
[00014] The embodiment of present invention discloses an integrated electric oil pump (100), the oil pump (100) includes a bottom cover (10), rotor body (20) post casing (30), controller (40) and top cover (50).
[00015] In an embodiment of present invention, the bottom cover (10) has two ports - inlet port (11) and outlet port (12)

[00016] In an embodiment of present invention, the rotor body (20) includes Ge rotor (21) consisting inner Ge rotor (21A) and outer Ge rotor (21B).
[00017] In an embodiment of present invention, the stator assembly (31) includes stator (31 A), copper coil winding (3IB) and rotor assembly (32) includes magnet (32A), shaft (32B), bearing (32C).
[00018] In an embodiment of present invention, the controller (40) acts as a motor driver [stator assembly (31) and rotor assembly (32)], the motor converts electrical energy into mechanical energy and rotates the pump unit of Ge rotor (21), which pumps oil from the sump to lubricate the vehicle's powertrain. Oil is absorbed from the inlet port (11) and exits from the outlet port (12).
BRIEF DESCRIPTION OF THE DRAWINGS
[00019] The accompanying drawings constitute a part of the description and are used to provide further understanding of the present invention. Such accompanying drawings illustrate the embodiments of the present invention which are used to describe the principles of the present invention together with the description.
[00020] FIG. 1 illustrates cross sectional view of integrated electric oil pump (100) in accordance to an embodiment of the present invention;
[00021] FIG. 2 illustrates casing in accordance to an embodiment of the present invention. As shown the compact integration of electric oil pump (100);
[00022] FIG. 3 illustrates exploded view of integrated electric oil pump in accordance to an embodiment of the present invention;

DETAILED DESCRIPTION OF THE INVENTION
[00023] As used in the description herein and throughout the claims that follow, the meaning of "a," "an," and "the" includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of "in" includes "in" and "on" unless the context clearly dictates otherwise.
[00024J If the specification states a component or feature "may", "can", "could", or "might" be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
[00025] Exemplary embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments are shown. This disclosure may however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
[00026] The present invention relates to fluid pumps. More specifically, the present invention is related to an integrated electric oil pump used in the lubrication system of vehicles specifically electric vehicles.
[00027] Referring Fig 1, Fig 2, Fig 3, shows, the embodiment of present invention discloses an integrated electric oil pump (100), the oil pump (100) includes a bottom cover (10), rotor body (20) post casing (30), controller (40) and top cover (50).
[00028] In an embodiment of present invention, the bottom cover (10) has two ports - inlet port (11) and outlet port (12)
[00029] In an embodiment of present invention, the rotor body (20) includes Ge rotor (21) consisting inner Ge rotor (21 A) and outer Ge rotor (2IB).
[00030] In an embodiment of present invention, the stator assembly (31) includes stator (31 A), copper coil winding (3 IB) and rotor assembly (32) includes magnet (32A), shaft (32B), bearing (32C).

[00031] In an embodiment of present invention, the controller (40) acts as a motor driver [stator assembly (31) and rotor assembly (32)], the motor converts electrical energy into mechanical energy and rotates the pump unit of Ge rotor (21), which pumps oil from the sump to lubricate the vehicle's powertrain. Oil is absorbed from the inlet port (11) and exits from the outlet port (12).
[00032] Referring Fig 1, Fig 2, Fig 3, shows an integrated electric oil pump (100), includes a bottom cover (10), the bottom cover made up of but not limited metal like aluminium. The electric oil pump (100) includes, a bottom cover(10) having inlet port (11) and outlet port (12) which include a stator assembly (31) and a rotor assembly (32), the stator assembly (31) having a stator (31 A), The rotor assembly (32) having a rotor, the rotor assembly (32) includes, magnet (32A), shaft (32B) and bearing (32C), the bottom cover (10) made up of metal like but not limited to aluminium, the bottom cover (10) having an inlet port (11) configured for sucking a liquid from a source and an outlet port (12) configured for transmitting said liquid to a next source, a bottom cover (10) configured to bottom of the port casing (30) using fastening means, the bottom cover made up of plastic like but not limited to; the magnet (32A) coupled to shaft (32B) by press fit means such as but not limited to the shaft (32B) at one end having bearing (32C) so as to couple the port casing (30), a gearing arrangement configured to the shaft (32B) for transmitting the liquid to the source, the gearing arrangement housed inside the rotor body (20) wherein gearing arrangement freely rotates inside the rotor body (20), a top cover (50) configured on top of the port casing (30) using fastening means, and a controller (40) operably coupled to bottom of the port casing (30) by fastening means for controlling the motor speed. The electric oil pump (100) forms an integrated assembly.
[00033] In an embodiment of present invention, the gearing arrangement is but not limited to internal gearing arrangement, the internal gearing arrangement like but not limited to Gerotor gearing arrangement, wherein Gerotor arrangement having an inner rotor and an outer rotor, wherein inner rotor having leaf and outer

rotor having node, wherein inner rotor having external teeth and outer rotor having internal teeth.
[00034] In an embodiment of present invention, the top cover (50), the rotor body (20) and port casing (30) configured using fastening means like but not limited to screws, nut and bolts and alike.
[00035] In an embodiment of present invention, the bottom cover (10), the controller (40) fixed to port casing (30) using fastening means like but not limited to screws, nut and bolts and alike.
[00036] In an embodiment of present invention, the rotor assembly (32) easy to manufacture, simple and easy to assemble with less time.
[00037] In an embodiment of present invention, the integrated oil pump assembly (100) forms as a single unit.
[00038] In an embodiment of present invention, the stator (31 A) with winding (31B) fixed inside the port casing (30) by but not limited to overmolding process.
[00039] Rotor assembly (32) of motor consist of magnet (32A) and it is mounted on the shaft (32B) by press fit which is also connected to Ge rotor (21) through shaft (32B).
[00040] A non-limiting operational characteristics of integrated electric oil pump is explained.
[00041] When power received to controller (40) from power source like but not limited to battery or engine of vehicle, the controller (40) starts the motor driver for rotor assembly (32) and stator assembly (31)), motor converts electric energy into mechanical energy and it gives rotation to the Ge rotor pumping unit, pumping unit pump the oil from oil sump/source to lubricating the transmission system (next source) of vehicle. Oil get suck from inlet port (11) and discharge from the pressure/outlet port (12).

[00042] LIST OF REFERENCE NUMARALS:
10. Bottom cover
11. Inlet port
12. Outlet port

20. Rotor body
21. Ge rotor
21 A. Inner Ge rotor 2IB. Outer Ge rotor
30. Port casing
31. Stator assembly 31 A. Stator
3 IB. Winding
32. Rotor assembly
32A. Magnet
32B. Shaft
32C. Bearing
40. Controller
50. Top Cover
100. Electrical Oil Pump

[00043] ADVANTAGES
1. The main advantage of the integrated oil pump is that simple to manufacture, easy to assemble, cost effective, time efficient.
2. The advantage of the integrated oil pump is that it is compact in size.
3. Instead of using two different housings (each for Ge rotor and stator assembly), current design concept includes only one housing integrating Ge rotor, stator assembly and rotor assembly.
4. Including above mentioned parts, assemblies in one housing results in reduced number of child parts.
5. Compact electrical oil pump design brings down number of assembly operations (due to decreased number of child parts) which eventually leads to cost reduction.

We Claim:
1. An integrated electrical oil pump (100), comprises:
a bottom cover (10), rotor body (20), port casing (30), controller (40) and top cover (50);
the bottom cover (10) is with two ports inlet port (11) and outlet port (12);
the rotor body (20) includes Ge rotor (21) having inner Ge rotor (21 A) and outer Ge rotor (2IB);
the port casing (30) having at least two assemblies stator assembly (31) and rotor assembly (32);
the stator assembly (31) includes stator (31 A), copper coil winding (3 IB) and rotor assembly (32) includes magnet (32A), shaft (32B), bearing (32C);
Characterized in that:
the controller (40) acts as a motor driver for stator assembly (31) and rotor assembly (32);
the motor converts electrical energy into mechanical energy and rotates the pump unit of Ge rotor (21), and the pumps oil from the sump to lubricate the vehicle's powertrain,
wherein, oil is absorbed from the inlet port (11) and exits from the outlet port (12) configured to bottom cover (10) for transmitting liquid to configured to bottom of the port casing (30);
2. An integrated electrical oil pump (100) as claimed in claim 1, wherein the
rotor assembly (32) includes, magnet (32A), shaft (32B) bearing (32C), and
bottom cover (10) made up of metal like but not limited to aluminium.

3. An integrated electrical oil pump (100) as claimed in claim 1, wherein the bottom cover (10) having an inlet port (11) configured for sucking a liquid from a source and an outlet port (12) configured for transmitting same liquid to a next source.
4. An integrated electrical oil pump (100) as claimed in claim 1, wherein a bottom cover (10) configured to bottom of the port casing (30) using fastening means, the bottom cover made up of plastic like but not limited to plastic.
5. An integrated electrical oil pump (100) as claimed in claim 1, wherein the magnet (32A) coupled to shaft (32B) by press fit means as such but not limited to the shaft (32B) at one end having bearing (32C) so as to couple the port casing (30).
6. An integrated electrical oil pump (100) as claimed in claim 1, wherein a gearing arrangement configured to the shaft (32B) for transmitting the liquid to the source.
7. An integrated electrical oil pump (100) as claimed in claim 1, wherein the gearing arrangement housed inside the rotor body (20) wherein gearing arrangement freely rotates inside the rotor body (20), a top cover (50) configured on top of the port casing (30) using fastening means, and a controller (40) operably coupled to bottom of the port casing (30) by fastening means for controlling the motor speed.
8. An integrated electrical oil pump (100) as claimed in claim 1, wherein the gearing arrangement is but not limited to internal gearing arrangement, the internal gearing arrangement like but not limited to Gerotor gearing arrangement, wherein Gerotor arrangement having an inner rotor and an outer rotor, wherein inner rotor having leaf and outer rotor having node, wherein inner rotor having external teeth and outer rotor having internal teeth.

9. An integrated electrical oil pump (100) as claimed in claim 1, wherein bottom cover (10), the top cover (50), the rotor body (20) port casing (30), and controller (40), configured using fastening means like but not limited to screws, nut and bolts and alike.