Adnimation ATF

Collapse

MECF_728x90_top

Collapse

Flat Plane Crank GM Patents And Ideas

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Flat Plane Crank GM Patents And Ideas

    Z06 applicability? Kudos and full credits to “Kodak Bear” for reaching back and finding some earlier GM patents that could have great relevance to the flat crank, e.g., the Z06’s flat plane crank LS6.

    Below is first the GM LT2 picture, and then with looking at the second rendering below, could as per the patents, the balance shafts be an massive and integral part of the Z06’s LS6?

    Click image for larger version  Name:	DA74B4F1-09D5-4060-917E-E853500BBF4D.jpeg Views:	0 Size:	259.7 KB ID:	318873

    [Quote=KodiakBear]Dry Sump Scavenge Pump System With Balance Shaft Capability For Application To Flat Plane V8 Engines

    Mar 14, 2013 - General MotorsAn internal combustion engine includes a balance shaft assembly having a housing mounted to the cylinder block wherein the housing supports a pair of balance shafts rotatably driven by the crankshaft. The pair of balance shafts rotate in opposite directions and each include a hollow tubular body with an internal eccentric mass. A first of the pair of balance shafts is drivingly connected to a drive sprocket at a first end and can include a first drive gear at a second end that is meshingly engaged with a first driven gear at an end of a second of the pair of balance shafts. A first oil pump is provided at the first end of the pair of balance shaft, and a second oil pump is provided at a second end of the pair of balance shafts. The gears of the oil pumps transfer torque between the pair of balance shafts.

    Publication number: 20140261281

    Type: Application

    Filed: Mar 14, 2013

    Publication Date: Sep 18, 2014

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit, MI)

    Inventors: Robert Lionel JACQUES (Troy, MI), Edward R. ROMBLOM (Dewitt, MI)

    Application Number: 13/803,475

    https://patents.google.com/patent/US20140261281A1/en

    And another large thanks to Kodak Bear…

    BALANCE SHAFT DISCONNECT FOR ENGINE SPIN LOSS REDUCTION

    Publication number: 20170138254

    Abstract: An engine includes a crankshaft rotatable about a crank axis, and at least one balance shaft rotatable about a respective balance axis. The balance shaft rotates about the balance axis to balance the engine during rotation of the crankshaft about the crank axis. A torque transmitting mechanism is selectively moveable between an engaged position and a disengaged position. When the torque transmitting mechanism is disposed in the engaged position, the torque transmitting mechanism connects the crankshaft and the balance shaft in torque communication for rotating the balance shaft with the crankshaft to balance the engine, and when disposed in the disengaged position, the torque transmitting mechanism disconnects torque communication between the crankshaft and the balance shaft for not rotating the balance shaft with the crankshaft as the crankshaft rotates about the crank axis, to reduce spin losses of the engine.

    Type: Application

    Filed: November 12, 2015

    Publication date: May 18, 2017

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventors: Andrei Balaceanu, Dale E Murrish”

    Also from Kodak Bear:

    The remember when the LT2 was first introduced and there was speculation as to why GM chose to show the cut away of the lower front? All the talk about the dry slump drive architecture.
    Click image for larger version  Name:	DEBA66BE-7BEE-416A-9361-1D850548ED87.jpeg Views:	0 Size:	435.3 KB ID:	318874
    GBA Black; HTO Twilight/Tension interior; Z51 & Mag Ride; E60 lift; 5VM visible carbon fiber package; 5ZZ high wing; FA5 interior vis CF; ZZ3 engine appearance; 3LT; Q8T Spectra Gray Tridents; J6N Edge Red Calipers; SNG Edge Red Hashmarks; VQK Splash Guards; RCC Edge Red engine cover; VJR illuminated sill plates. Lifetime, annual contributors, and 23 year members of National Corvette Museum. Home is the beautiful Pacific Northwest.

  • #2
    A bit too technical for me as I don't understand all the terminology. The C8Rs are limited to 500 HP in a 5.5 liter block as I understand the rules. So if a 6.2 liter block is used, how much more power would they be hoping to get above the C8.R?

    Comment


    • #3
      Both patents appears to be abandoned, meaning that GM decided not to pay the patent maintenance fees:
      Click image for larger version  Name:	Capture.JPG Views:	0 Size:	37.2 KB ID:	318915
      Last edited by Mobius; 10-11-2021, 06:51 PM. Reason: added pic
      My C8:
      '20 Elkhart Lake Blue 2LT Coupe, Natural Interior, GT2 Two-Tone Seats, Performance Exhaust, Front Lift, Carbon Flash Wheels, Engine Appearance Package 2000 Status December 27, 2019; 3000 Status January 2, 2020; 3400 Status March 10, 2020;TPW March 16, 2020; Built June 4th, 2020 (COVID-19); Delivery July 1, 2020

      Current Vettes:
      '68 Lemans Blue 327/350 Convertible
      '91 Turquoise Convertible with Hardtop
      '14 Lime Rock Green 2LT Convertible, Black Top, Kalahari, 7-Speed, Performance Exhaust

      Comment


      • #4
        Originally posted by electroVette
        Based on the patent drawings the balance shafts are a separate module that bolts onto the block where the dry sump cover would be. Since 2nd vibes are horizontal on a FPC V8 that will result in a rocking couple but that's easier to manage than the secondary imbalance.






        What?......

        Comment


        • #5
          I'll try this again, photos didn't load right.

          Based on the patent drawings the balance shafts are a separate module that bolts onto the block where the dry sump cover would be. Since 2nd vibes are horizontal on a FPC V8 that will result in a rocking couple but that's easier to manage than the secondary imbalance.

          Click image for larger version

Name:	US20140261281A1-20140918-D00000.png
Views:	199
Size:	22.2 KB
ID:	319244

          Click image for larger version

Name:	US20140261281A1-20140918-D00003.png
Views:	187
Size:	17.1 KB
ID:	319246

          Click image for larger version

Name:	US20140261281A1-20140918-D00002.png
Views:	187
Size:	51.2 KB
ID:	319247

          Click image for larger version

Name:	US20140261281A1-20140918-D00005.png
Views:	187
Size:	25.3 KB
ID:	319245

          Comment

          MECF_728x90_bottom

          Collapse
          Working...
          X