A Stepper Motor Integrated In An Inline Pump Fornegative Adaptation Control

Bosch Limited
Withdrawn App No 202041046721 Mechanical Engineering

Patent information

IP India · live record
Application number
202041046721
Filing date
27 October 2020
Status
Withdrawn
Publication number
17/2022
Publication type
INA
Invention field
Mechanical Engineering

Abstract

A high pressure fuel pump 10 is described. The high pressure fuel pump 10 comprises a housing 12. A plunger is adapted to reciprocate within a barrel of the housing. A control rod 14 is secured to the plunger. A bell crank lever 16 is positioned against the 10 control rod 14. A lifting rod 18 is secured to the bell crank lever 16. The lifting rod 18 comprises gear teeth 20 that are defined on its outer edge. A gear 22 comprising gear teeth 24 that are defined on its outer circumference meshes with the plurality of gear teeth 20 that are defined on the outer edge of the lifting rod 18. The gear 22 is adapted to cause the lifting rod 18 to reciprocate thereby causing the bell crank lever 16 to 15 rotate about the pivot 17 to facilitate displacing the control rod 14 to a user required displacement.

Applicants

2
India
Bosch Limited Post Box No 3000, Hosur Road, Adugodi, Bangalore – 560030, Karnataka, India
Germany
Robert Bosch GmbH Feuerbach, Stuttgart, Germany

Inventors

4
India
Srikanth Balakrishnamurthy# 162,3rd main, 1D cross, Niveditha Nagar New Kantharaj URS road, Mysore 570023, Karnataka
India
Sushanth ChoontaruManinje house, Kalmanja post Belthangady taluk, DK, Pin 574228 Karnataka.
India
Ashwin Holenarasipura KumaraswamyNo. 54 - B, 10th A Cross, 1st Block, Rajajinagar, Bangalore – 560010
India
Ashwin ShettyLaxmi Nivasa Tilery road Mulihithlu Bolar Mangalore-575001

Claims

3
1 A high pressure fuel pump (10), said high pressure fuel pump (10) comprising: 10 a housing (12); a barrel positioned within said housing (12); a plunger adapted to reciprocate within said barrel and deliver pressurized fuel from within said barrel to a fuel injector via a fuel delivery valve; a control rod (14) secured to said plunger, said control rod (14) adapted to 15 rotate said plunger to facilitate controlling a quantity of pressurized fuel that is delivered from said high pressure fuel pump (10); a bell crank lever (16), an end of said bell crank lever (16) positioned against said control rod (14), said bell crank lever (16) adapted to displace said control rod (14) to facilitate controlling a quantity of pressurized fuel that is delivered 20 from said high pressure fuel pump (10); characterized in that a lifting rod (18) secured to an end of said bell crank lever (16), said lifting rod (18) adapted to rotate said bell crank lever (16) about a pivot (17) to facilitate displacing said control rod (14), thereby controlling a quantity of pressurized fuel that is delivered from said high pressure fuel pump (10), wherein the lifting 25 rod (18) comprises a plurality of gear teeth (20) that are defined on an outer edge of said lifting rod (18); and a gear (22) comprising a plurality of gear teeth (24) that are defined on its outer circumference meshing with the plurality of gear teeth (20) that are defined on the outer edge of said lifting rod (18), said gear (22) comprising the plurality 30 of gear teeth (24) that are defined on its outer circumference adapted to cause said lifting rod (18) to reciprocate, thereby causing said bell crank lever (16) to rotate about the pivot (17) to facilitate displacing said control 5 rod (14) to a user required displacement.
2 The high pressure fuel pump (10) in accordance with Claim 1 further comprising a stepper motor secured to said gear (22), said stepper motor 10 adapted to cause said gear (22) to rotate, thereby causing said lifting rod (18) to reciprocate, thereby causing said bell crank lever (16) to rotate about the pivot 17 to facilitate displacing said control rod (14) to the user required displacement.
3 The high pressure fuel pump (10) in accordance with Claim 2 further comprising an engine control unit in electronic communication with said stepper motor, said engine control unit adapted to transmit a signal to said stepper motor secured to said gear (22) to rotate said gear (22) to the user required displacement, thereby causing said lifting rod (18) to reciprocate to 20 the user required displacement, thereby causing said bell crank lever (16) to rotate about the pivot 17 to facilitate displacing said control rod (14) to the user required displacement. , Description:A high pressure fuel pump 10 is described. The high pressure fuel pump 10 comprises a housing 12. A plunger is adapted to reciprocate within a barrel of the housing. A control rod 14 is secured to the plunger. A bell crank lever 16 is positioned against the 10 control rod 14. A lifting rod 18 is secured to the bell crank lever 16. The lifting rod 18 comprises gear teeth 20 that are defined on its outer edge. A gear 22 comprising gear teeth 24 that are defined on its outer circumference meshes with the plurality of gear teeth 20 that are defined on the outer edge of the lifting rod 18. The gear 22 is adapted to cause the lifting rod 18 to reciprocate thereby causing the bell crank lever 16 to 15 rotate about the pivot 17 to facilitate displacing the control rod 14 to a user required displacement.

Specification

Show full textCollapse

Claims:1. A high pressure fuel pump (10), said high pressure fuel pump (10) comprising: 10 a housing (12); a barrel positioned within said housing (12); a plunger adapted to reciprocate within said barrel and deliver pressurized fuel from within said barrel to a fuel injector via a fuel delivery valve; a control rod (14) secured to said plunger, said control rod (14) adapted to 15 rotate said plunger to facilitate controlling a quantity of pressurized fuel that is delivered from said high pressure fuel pump (10); a bell crank lever (16), an end of said bell crank lever (16) positioned against said control rod (14), said bell crank lever (16) adapted to displace said control rod (14) to facilitate controlling a quantity of pressurized fuel that is delivered 20 from said high pressure fuel pump (10); characterized in that a lifting rod (18) secured to an end of said bell crank lever (16), said lifting rod (18) adapted to rotate said bell crank lever (16) about a pivot (17) to facilitate displacing said control rod (14), thereby controlling a quantity of pressurized fuel that is delivered from said high pressure fuel pump (10), wherein the lifting 25 rod (18) comprises a plurality of gear teeth (20) that are defined on an outer edge of said lifting rod (18); and a gear (22) comprising a plurality of gear teeth (24) that are defined on its outer circumference meshing with the plurality of gear teeth (20) that are defined on the outer edge of said lifting rod (18), said gear (22) comprising the plurality 30 of gear teeth (24) that are defined on its outer circumference adapted to cause said lifting rod (18) to reciprocate, thereby causing said bell crank lever (16) to rotate about the pivot (17) to facilitate displacing said control 5 rod (14) to a user required displacement. 2. The high pressure fuel pump (10) in accordance with Claim 1 further comprising a stepper motor secured to said gear (22), said stepper motor 10 adapted to cause said gear (22) to rotate, thereby causing said lifting rod (18) to reciprocate, thereby causing said bell crank lever (16) to rotate about the pivot 17 to facilitate displacing said control rod (14) to the user required displacement. 3. The high pressure fuel pump (10) in accordance with Claim 2 further comprising an engine control unit in electronic communication with said stepper motor, said engine control unit adapted to transmit a signal to said stepper motor secured to said gear (22) to rotate said gear (22) to the user required displacement, thereby causing said lifting rod (18) to reciprocate to 20 the user required displacement, thereby causing said bell crank lever (16) to rotate about the pivot 17 to facilitate displacing said control rod (14) to the user required displacement. , Description:A high pressure fuel pump 10 is described. The high pressure fuel pump 10 comprises a housing 12. A plunger is adapted to reciprocate within a barrel of the housing. A control rod 14 is secured to the plunger. A bell crank lever 16 is positioned against the 10 control rod 14. A lifting rod 18 is secured to the bell crank lever 16. The lifting rod 18 comprises gear teeth 20 that are defined on its outer edge. A gear 22 comprising gear teeth 24 that are defined on its outer circumference meshes with the plurality of gear teeth 20 that are defined on the outer edge of the lifting rod 18. The gear 22 is adapted to cause the lifting rod 18 to reciprocate thereby causing the bell crank lever 16 to 15 rotate about the pivot 17 to facilitate displacing the control rod 14 to a user required displacement.

Documents

Sign in to open
Application documents
1 202041046721-POWER OF AUTHORITY [27-10-2020(online)].pdf 27 Oct 2020
2 202041046721-FORM 1 [27-10-2020(online)].pdf 27 Oct 2020
3 202041046721-DRAWINGS [27-10-2020(online)].pdf 27 Oct 2020
4 202041046721-DECLARATION OF INVENTORSHIP (FORM 5) [27-10-2020(online)].pdf 27 Oct 2020
5 202041046721-COMPLETE SPECIFICATION [27-10-2020(online)].pdf 27 Oct 2020