The present invention relates to a powered bicycle and more particularly to a hi-ride portable engine assembly for a bicycle which converts existing manual bicycles to electric bicycles. The portable engine assembly designed for bicycles can be installed in any manually powered bicycle whether new bicycle or existing bicycle thus converting it to an electric bicycle while allowing user to ride bicycles on pedal mode and Pedalec mode (Pedal and electric together). The present invention integrates all parts required to provide electric mobility into one product that can be fitted onto any bicycle and convert the same into an electric bicycle. The engine of the present invention is easy to be installed and is portable in nature. The user can install and uninstall it easily onto any bicycle.
BACKGROUND OF THE INVENTION
An electric bicycle, also known as an e-bike, power bike or booster bike, is a bicycle with an integrated electric motor which can be used for propulsion. Many kinds of electric- bike also known as e-bikes or e-bicycle are available worldwide such as from e-bikes that only have an integrated hub motor to assist the rider's pedal-power (i.e., peddles) to somewhat more powerful e-bikes which tend closer to moped-style functionality.
To avail benefits of electric mobility in bicycles, prospective customers either have to buy a new electric bicycle or can get motor, battery and other parts installed in their existing bicycle.
Conventionally, e-bicycles use hub motors fitted within the wheel. Further, e-bicycles have battery pack and other parts attached or integrated with bicycle frame.
Installation of hub motor, battery pack and other parts to existing manual bicycles is at times difficult due to the fitting requirements. For example, installation of hub motor requires specific wheel size and other parts are also to be aligned with it which requires changes in fitment and installation is a time consuming, difficult and expensive process. To explain further, Indian Bicycle industry's major segment is Roadster

Bicycles and hub motors cannot be fitted into their wheels easily as their dimensions are different. Hence, a solution is required to overcome these problems and provide cyclists benefits of electric mobility in efficient and effective manner.
At the same time, for new bicycles also, installation of hub motor, battery pack and other parts are required to be aligned with bicycle frame so that each component can be attached or integrated easily. This makes electric bicycles expensive and unaffordable for common man.
Further, conventional hub motors put a restriction on curb weight of the vehicle which is usually 90-100 kgs for an electric bicycle having motor output power not more than 0.25KW. On the other hand, roadster bicycles used by millions of Indians usually weigh around 20 kgs and adding cyclist weight of 75 kgs exhaust the weight taking capacity of motors. If any additional load is put on, chances of damages / burn out could be there. Another alternative to this problem being adopted by many manufacturers is to make light weight bicycles using advanced alloy. This option makes an electric bicycle much expensive beyond the reach of common man.
Considering the above drawbacks, it is desirable to provide a portable engine that can be installed to any bicycle and provide cyclists electric mobility along with manual movability. Further, the option to convert their normal bicycle into an electric bicycle should come at a nominal cost with less installation time and shall also eliminate above mentioned drawbacks.
Therefore, the present Invention focuses not only on a portable engine which can be readily fitted into any bicycle but also on reduction of installation time. In these portable engines, all the parts viz. motor, battery, controller, transmission drive etc. are hitherto known have been integrated into a single product in the form of a portable engine that gets installed on rear wheel of a bicycle. The same is very easy to install and uninstall and enables user to install this on their existing manual bicycle. Only throttle is left outside of this engine that is fitted into handle of vehicle. Further, engine transmission has been designed in such a manner that it enables user to run the bicycle in three modes i.e. (1) Manual (2) Electric (3) Pedalec.

SUMMARY OF THE PRESENT INVENTION
The present invention relates to a powered bicycle and more particularly to a portable engine which allow existing manual bicycles converted to electric bicycles. The portable engine designed for bicycles can be installed in any manually powered bicycle or can be installed in any new bicycle thus converting it to an electric bicycle while retaining pedal mode also. The present invention integrates all parts of the engine into one product that can be fitted onto any bicycle. Thus, the engine of the present invention reduces installation time and is portable in nature. The user can install and uninstall it easily onto any bicycle.
All the parts of the engine have been designed keeping in view the practical aspects for installation in any type or kind of the existing bicycles.
In one aspect of the present invention, there is provided an apparatus in the form of a portable engine that can convert any bicycle into an electric bicycle.
In another aspect of the present invention, a method of converting any manually powered bicycle into an electric bicycle by portable engine is provided.
One of the objectives of the present invention is to provide a portable engine which is compact and easy to install and uninstall in any bicycle.
Another objective of the present invention is to provide a portable engine which converts any existing bicycle into electric bicycle in a cost-effective manner.
Another objective of the present invention is to make green motorized mobility available to all at economical price.
Another objective of the present invention is to allow roadster cyclists to carry substantial load.

BRIEF DESCRIPTION OF THE DRAWINGS
The foregoing and other objects, features, and advantages of the present invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings, wherein:
Fig. 1 illustrates front and perspective views respectively of a portable engine in accordance with the present invention.
Fig. 2 illustrates an assembly break-up of the portable engine of Fig. 1 showing each of parts A, B, C and D comprising mechanical and electrical parts of the portable engine in accordance with the present invention.
Fig. 2A illustrates an exploded as well as an assembled view of Part A disclosed in Fig. 2 in accordance with the present invention.
Fig. 2B illustrates an exploded as well as an assembled view of Part B disclosed in Fig. 2 in accordance with the present invention.
Fig. 2C illustrates a detailed view of Part C disclosed in Fig. 2 in accordance with the present invention.
Fig. 2D illustrates a detailed view of Part D disclosed in Fig. 2 in accordance with the present invention.
FIG. 3 illustrates the assembled structure of each of Part A, Part B, Part C and D designed in the form of a portable engine to be fitted with a bicycle in accordance with the present invention which can be easily installed to any existing bicycle.
FIGS. 4A to 4D illustrate the positioning of portable engine onto the top of rear wheel of a bicycle converting the same into a e-bicycle in accordance with the present invention.

FIG. 5 illustrates a chain sprocket attached to a free wheel placed on rear wheel of the e-bicycle through its chain in accordance with the present invention.
FIG.6 illustrates the working of throttle installed on e-bicycle handle in accordance with the present invention.
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the presently disclosed invention will now be described in detail with reference to the drawings wherein like reference numerals designate identical or corresponding elements. In the drawings and in the description, the term "high", "low" or "medium" refers to the speed of the bicycle.
Moreover, the Figures may show simplified or partial views, and the dimensions of elements in the Figures may be exaggerated or otherwise not in proportion for clarity. In addition, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. In addition, where reference is made to a list of elements (e.g., elements a, b, c), such reference is intended to include any one of the listed elements by itself, any combination of less than all of the listed elements, and/or a combination of all of the listed elements.
Referring to Fig. 1, it illustrates front and perspective views of a portable engine 102 in accordance with the present invention. The electric bicycle 100 comprises a hi-ride portable engine 102 designed for bicycles that can be installed in any manually powered bicycle thus converting it to an electric bicycle 100.
Referring now to Fig. 2, it illustrates an assembly break-up of portable engine disclosed in Fig. 1 in accordance with the present invention, wherein the portable engine assembly is divided into four Parts viz. Part A, B, C and D comprising mechanical and electrical parts used in the portable engine 102.
Referring to Fig. 2A, it illustrates a detailed view of the Part A disclosed in Fig. 2 in accordance with the present invention. Part A of the portable engine assembly comprises a base plate 104, a battery pack 106, a controller 108, a top cover 110 and

a leg 112. The base plate 104 and the top Cover 110 are fixed or assembled into each other through plurality of bolts and screws 114 and designed as an enclosure 116. The battery pack 106 and the controller 108 are fitted inside. The battery pack 106 is designed to provide power supply via controller 108 to a motor 118 as shown in Fig. 2B. A leg 112 attached at the bottom of the Part A of the portable engine is used to install Part A across the rear wheel of the bicycle as illustrated in Figs. 4A-4D.
Referring now to Fig. 2B, it illustrates a detailed view of the Part B disclosed in Fig. 2 in accordance with the present invention. Part B of the portable engine assembly comprises a gear plate 120, a cover 122, gears/chain/belt 124, shafts 126, a chain sprocket 128, a leg 130 and a motor 118. The gear plate 120 has bearing sizes made on it to fix gears / belt / chain and shafts to provide continuous motion power to the chain sprocket 128. The motor 118 is fitted to top of gear plate 120 through bolts and screws. Multiple types of motors can be used viz. Brush, Brushless or any other. Upon rotation of the motor 118, the shaft 126 rotates which in turn rotates the belt/gears/chain 124 and hence, results in rotation of the chain sprocket 128. The leg 130 is attached at the bottom end with the bicycle 100 to enable engine to get installed at rear wheel of the bicycle 100 as disclosed in Figure 6. To cover the entire arrangement of assembly, the cover 122 is affixed on a gear plate 120 to form an enclosure having all parts inside except the motor 118 which is affixed from outside.
Referring to Fig. 2C, it illustrates a detailed view of Part C disclosed in Fig. 2 in accordance with the present invention. Part C of the portable engine assembly discloses a centre plate 142 which affixes Part A and Part B on to it.
Referring to Fig. 2D, it illustrates a detailed view of Part D disclosed in Fig. 2 in accordance with the present invention, Part D of the portable engine assembly used to cover Motor 118, wherein Part D comprises a clamp 132 to fix the bicycle seat with the portable engine. Clamp 132 can be designed in any shape and size in accordance with the requirement of the Bicycle 100. Part D further comprises a Carrier Clamp 134 that is fixed to enable User to attach a Carrier 135 and a space provided in Clamp 132 that allow User to pass Lock 136 through it which enable to lock the engine with the Bicycle.

The portable engine 102 is attached at the rear wheel of the bicycle 100 with the help of chain that connects Chain Sprocket 128 of Engine & freewheel of Bicycle. The left hand sides (Part B) of engine contains mechanical parts and right hand side (Part A) contains electrical parts with centre (Part C) part having motor 118. On left hand side, transmission is provided in the form of gears/belt drive/chain drive 124 that results in output shaft 126 at the lower end which further has chain sprocket 128 attached to it. The speed of said shaft 126 is controlled by motor 118 and the speed of motor 118 is controlled by a controller 108. The Controller 108 is further connected to throttle 140 and control the speed of bicycle as per user instructions.
The controller 108 can be installed as per motor type viz. brush, brushless or any other kind of motor.
The battery pack 106 installed at right hand side of portable engine 102 to provide energy to the components of portable engine 102. The said battery pack 106 can be of any configuration as per the user requirements. Along with this pack, a charging point 148 is provided on right hand side at the top so that whenever the power of battery depletes, user can charge it with a portable charger.
The portable charger can be of different types of USB cables, i.e. USB Type A, USB Type B and USB Type C, charger can be Rapid, fast and slow. The portable charger allows user to charge at home, charge when out and about, and even charge if the user in a hurry.
Referring to Fig. 3, it illustrates the assembly connection of Part A, Part B to Part C which are designed to form the portable engine in accordance with the present invention, wherein the assembly Part A and Part B are both fixed to Part C to form the portable engine. Firstly, Part B is attached to Part C and afterwards Part A is attached to Part C.
Referring to Figs. 4A -4D, they illustrate the positioning of portable engine 102 onto the top of rear wheel 144 of bicycle 100 in accordance with the present invention, wherein the upper left image i.e. Fig. 4A illustrates portable engine 102 fitted to rear wheel 144 of bicycle 100, the upper right image i.e. 4B illustrates Part D of the portable

engine 102 fitted through bolt and screws 114 for a stable in the bicycle once attached. The lower left image i.e. Fig. 4C illustrates leg 112 attached at the bottom of the Part A of the portable engine fitted with the left side of the rear wheel 144 of bicycle and tightened with bolt and screws 114. Similarly, leg 130 fitted at right side of rear wheel 144 of bicycle 100 and tightened with bolt and screws 114 and the lower right image i.e. Fig. 4D shows the final view of the assembly of portable engine 102 being assembled and fitted onto Bicycle 100.
Referring to Fig. 5, it illustrates chain sprocket 128 attached to freewheel 148 placed on rear wheel hub 146 of e-bicycle 100 through chain 149 in accordance with the present invention.
Referring to Fig. 6, it illustrates the working of throttle 140 installed on bicycle handle 138 in accordance with the present invention, showing throttle 140 installed on bicycle handle 138 that allows user to adjust speed at their discretion. Throttles do have option of battery indicator, lock and multiple speed levels. The level of speed of bicycle 100 can be "high", "low" or "medium".
Although this invention has been disclosed in the context of certain preferred embodiments and examples, it will be understood by those skilled in the art that the present invention extends beyond the specifically disclosed embodiments to other alternative embodiments and/or uses of the invention and obvious modifications and equivalents thereof. Thus, from the foregoing description, it will be apparent to one of ordinary skill in the art that many changes and modifications can be made thereto without departing from the spirit or scope of the invention as set forth in the claims.
Accordingly, it is not intended that the scope of the foregoing description be limited to the exact description set forth above, but rather that such description be construed as encompassing such features that reside in the present invention, including all the features and embodiments that would be treated as equivalents thereof by those skilled in the relevant art.

The scope of the present invention herein disclosed is not limited by the particular disclosed embodiments described above but determined only by a fair reading of the appended claims.

LIST OF REFERENCE NUMERALS
100 e-Bicycle/ Bicycle
102 Portable Engine
104 Baseplate
106 Battery Pack
108 Controller
110 Top Cover
112 Leg
114 Bolts & Screws
116 Enclosure
118 Motor
120 Gear Plate
122 Cover
124 Gears/Chain
126 Shafts
128 Chain Sprocket
130 Leg
132 Clamp
134 Carrier Clamp
136 Lock
138 Bicycle Handle
140 Throttle
142 Centre Plate
144 Rear Wheel
146 Rear Wheel Hub
148 Charging Point
149 Chain

WE CLAIM:

1. A hi-ride portable engine assembly (102) for a bicycle (100) comprising: an assembly part A including electrical component of the assembly (102); an assembly part B including mechanical component of the assembly (102); an assembly part D being a cover for a motor (118); and wherein the assembly part A and part B are assembled with an assembly part C to form the portable engine assembly (102).
2. The portable engine (102) as claimed in claim 1, wherein part A comprises a base plate (104) and a top cover (110) assembled into each other through a plurality of bolts and screws (114) forming an enclosure (116) to receive a battery pack (106) and a controller (108) within said enclosure (116).
3. The portable engine (102) as claimed in claim 2, wherein part A comprises a leg (112) attached at the bottom of the Part A of the portable engine to install Part A across the rear wheel of the bicycle (100).
4. The portable engine (102) as claimed in claim 1, wherein part B comprises a gear plate (120) with bearing to fix gears / belt (124) and a shaft (126) to provide continuous motion power to a chain sprocket (128).
5. The portable engine (102) as claimed in claim 4, wherein part B comprises a motor (118) assembled at top of the gear plate (120) through bolts and screws; wherein upon rotation of the motor (118), the shaft (126) rotates which in turn rotates belt/gears/chain (124) resulting in rotation of chain sprocket (128).
6. The portable engine (102) as claimed in claim 1, wherein part D further comprising a clamp (132) to fix the bicycle seat with the portable engine (102) and a carrier clamp (134) to enable user to attach carrier and a space provided in clamp (132) that allow user to pass a lock (136) there through enabling to lock the engine with the bicycle.

7. The portable engine (102) as claimed in claim 1, wherein speed of the shaft (126) is controlled by the motor (118) and speed of the motor (118) is controlled by the Controller (108).
8. The portable engine (102) as claimed in claim 1, wherein the Controller (108) controls the speed of bicycle through throttle (140) as per user instructions.
9. The portable engine (102) as claimed in claim 2, wherein the Controller (108) installed as per motor type viz. brush, brushless or any other kind of motor.
10. The portable engine (102) as claimed in claim 1, wherein the battery pack (106) installed with a charging point (148) to provide charging whenever the power of battery depletes.